0001130310-23-000146 | 10-Q | XBRL Viewer

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Short-term Borrowings and Long-term Debt - Narrative (Details) $ / shares in Units, $ in Millions			1 Months Ended		9 Months Ended
	Oct. 13, 2023 USD ($) numberOfTranche	Aug. 01, 2023 $ / shares	Jul. 31, 2023 USD ($) numberOfSeries	Apr. 30, 2023 USD ($) numberOfSeries	Sep. 30, 2023 USD ($) shares	Sep. 30, 2022 USD ($)	Oct. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)
Debt Instrument [Line Items]
Conversion price percentage		25.00%
Debt instrument, convertible, conversion ratio		27.1278
Proceeds from long-term debt and term loans					$ 5,574	$ 2,089
Letters of Credit
Debt Instrument [Line Items]
Long-term line of credit					$ 9			$ 11
Convertible Debt
Debt Instrument [Line Items]
Debt instrument, convertible, conversion price (in dollar per shares) \| $ / shares		$ 36.86
Debt instrument, redemption price (as a percent)		100.00%
Maximum
Debt Instrument [Line Items]
Debt instrument, convertible, conversion ratio					33.9097
Debt instrument, convertible, number of equity instruments (in shares) \| shares					33,909,700
Third Party AMAs
Debt Instrument [Line Items]
Inventory financings					$ 4			11
CERC
Debt Instrument [Line Items]
Aggregate Principal Amount					2,000
Proceeds from long-term debt and term loans					2,006	852
CERC \| Letters of Credit
Debt Instrument [Line Items]
Long-term line of credit					1			0
CERC \| Third Party AMAs
Debt Instrument [Line Items]
Inventory financings					4			11
SIGECO
Debt Instrument [Line Items]
Proceeds from issuance of secured tax exempt debt				$ 148
Debt instrument, series of remarketing agreement to remarket \| numberOfSeries			2	5
SIGECO \| Letters of Credit
Debt Instrument [Line Items]
Long-term line of credit					0			0
SIGECO \| Environmental Improvement Revenue Bonds, Series 2015
Debt Instrument [Line Items]
Interest Rate			4.25%
SIGECO \| Subsequent Event
Debt Instrument [Line Items]
Aggregate Principal Amount							$ 470
SIGECO \| First Mortgage Bonds
Debt Instrument [Line Items]
Secured debt					$ 457
Percentage of property additions (as a percent)					70.00%
Additional first mortgage bonds and general mortgage bonds that could be issued					$ 1,400
SIGECO \| First Mortgage Bonds \| Subsequent Event
Debt Instrument [Line Items]
Number of tranches \| numberOfTranche	3
Aggregate Principal Amount	$ 470
Proceeds from long-term debt and term loans	467
SIGECO \| First Mortgage Bonds \| Subsequent Event \| SIGECO First Mortgage Bonds Due 2029
Debt Instrument [Line Items]
Aggregate Principal Amount	$ 180
Interest Rate	5.75%
SIGECO \| First Mortgage Bonds \| Subsequent Event \| SIGECO First Mortgage Bonds Due 2030
Debt Instrument [Line Items]
Aggregate Principal Amount	$ 105
Interest Rate	5.91%
SIGECO \| First Mortgage Bonds \| Subsequent Event \| SIGECO First Mortgage Bonds Due 2034
Debt Instrument [Line Items]
Aggregate Principal Amount	$ 185
Interest Rate	6.00%
SIGECO \| Environmental Improvement Revenue Bonds, Series 2013
Debt Instrument [Line Items]
Aggregate Principal Amount				$ 107
SIGECO \| Environmental Improvement Revenue Bonds, Series 2014
Debt Instrument [Line Items]
Aggregate Principal Amount				$ 41
SIGECO \| SIGECO First Mortgage Bonds \| Nontaxable Municipal Bonds
Debt Instrument [Line Items]
Proceeds from issuance of secured tax exempt debt			$ 38
SIGECO \| Environmental Improvement Revenue Bonds, Series 2015 \| Nontaxable Municipal Bonds \| Mount Vernon
Debt Instrument [Line Items]
Aggregate Principal Amount			23
SIGECO \| Environmental Improvement Revenue Bonds, Series 2015 \| Nontaxable Municipal Bonds \| Warrick County
Debt Instrument [Line Items]
Aggregate Principal Amount			$ 15
Houston Electric
Debt Instrument [Line Items]
Proceeds from long-term debt and term loans					1,398	$ 1,589
Houston Electric \| Letters of Credit
Debt Instrument [Line Items]
Long-term line of credit					0			$ 0
Houston Electric \| General Mortgage Bonds
Debt Instrument [Line Items]
Aggregate Principal Amount					1,400
Secured debt					7,600
General mortgage bonds used as collateral					$ 68
Percentage of property additions (as a percent)					70.00%
Additional first mortgage bonds and general mortgage bonds that could be issued					$ 4,500
Vectren \| Letters of Credit
Debt Instrument [Line Items]
Long-term line of credit					1
Vectren \| Maximum \| Letters of Credit
Debt Instrument [Line Items]
Long-term line of credit					$ 5

Background and Basis of Presentation (Policies)	9 Months Ended
Background and Basis of Presentation (Policies)	Sep. 30, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Basis of Presentation. The preparation of the Registrants’ financial statements in conformity with generally accepted accounting principles requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.The Interim Condensed Financial Statements reflect all normal recurring adjustments that are, in the opinion of management, necessary to present fairly the financial position, results of operations and cash flows for the respective periods. Amounts reported in the Condensed Statements of Consolidated Income are not necessarily indicative of amounts expected for a full-year period due to the effects of, among other things, (a) seasonal fluctuations in demand for energy, (b) changes in energy commodity prices, (c) timing of maintenance and other expenditures and (d) acquisitions and dispositions of businesses, assets and other interests.
New Accounting Pronouncements	Management believes that recently adopted standards and recently issued standards that are not yet effective will not have a material impact on the Registrants’ financial position, results of operations or cash flows upon adoption.
Revenues from Contract with Customers	Revenues from Contracts with Customers In accordance with ASC 606, Revenue from Contracts with Customers, revenue is recognized when a customer obtains control of promised goods or services. The amount of revenue recognized reflects the consideration to which the Registrants expect to be entitled to receive in exchange for these goods or services. ARPs are contracts between the utility and its regulators, not between the utility and a customer. The Registrants recognize ARP revenue as other revenues when the regulator-specified conditions for recognition have been met. Upon recovery of ARP revenue through incorporation in rates charged for utility service to customers, ARP revenue is reversed and recorded as revenue from contracts with customers. The recognition of ARP revenues and the reversal of ARP revenues upon recovery through rates charged for utility service may not occur in the same period. Revenues from Contracts with Customers Electric (CenterPoint Energy and Houston Electric). Houston Electric distributes electricity to customers over time, and customers consume the electricity when delivered. Indiana Electric generates, transmits and distributes electricity to customers over time, and customers consume the electricity when delivered. Revenue, consisting of both volumetric and fixed tariff rates set by state regulators, such as the PUCT and the IURC, is recognized as electricity is delivered and represents amounts both billed and unbilled. Discretionary services requested by customers are provided at a point in time with control transferring upon the completion of the service. Revenue for discretionary services provided by Houston Electric is recognized upon completion of service based on the tariff rates set by the PUCT. Payments for electricity distribution and discretionary services are aggregated and received on a monthly basis. Houston Electric performs transmission services over time as a stand-ready obligation to provide a reliable network of transmission systems. Revenue is recognized upon time elapsed, and the monthly tariff rate set by the regulator. Payments are received on a monthly basis. Indiana Electric customers are billed monthly and payment terms, set by the regulator, require payment within a month of billing. Natural Gas (CenterPoint Energy and CERC). CenterPoint Energy and CERC distribute and transport natural gas to customers over time, and customers consume the natural gas when delivered. Revenue, consisting of both volumetric and fixed tariff rates set by the state governing agency for that service area, is recognized as natural gas is delivered and represents amounts both billed and unbilled. Discretionary services requested by the customer are satisfied at a point in time and revenue is recognized upon completion of service and the tariff rates set by the applicable state regulator. Payments of natural gas distribution, transportation and discretionary services are aggregated and received on a monthly basis. Contract Balances. When the timing of delivery of service is different from the timing of the payments made by customers and when the right to consideration is conditioned on something other than the passage of time, the Registrants recognize either a contract asset (performance precedes billing) or a contract liability (customer payment precedes performance). Those customers that prepay are represented by contract liabilities until the performance obligations are satisfied. The Registrants’ contract assets are included in Accrued unbilled revenues and contract liabilities are included in Accounts payable and Other current liabilities in their Condensed Consolidated Balance Sheets. CenterPoint Energy’s contract assets and contract liabilities primarily related to Energy Systems Group contracts where revenue was recognized using the input method prior to the sale of Energy Systems Group that was completed on June 30, 2023.
Allowance for Credit Losses	Allowance for Credit LossesCenterPoint Energy and CERC segregate financial assets that fall under the scope of Topic 326, primarily trade receivables due in one year or less, into portfolio segments based on shared risk characteristics, such as geographical location and regulatory environment, for evaluation of expected credit losses. Historical and current information, such as average write-offs, are applied to each portfolio segment to estimate the allowance for losses on uncollectible receivables. Additionally, the allowance for losses on uncollectible receivables is adjusted for reasonable and supportable forecasts of future economic conditions, which can include changing weather, commodity prices, regulations, and macroeconomic factors, among others. Houston Electric had no material changes in its methodology to recognize losses on financial assets that fall under the scope of Topic 326, primarily due to the nature of its customers and regulatory environment.
Fair Value Measurements	Assets and liabilities that are recorded at fair value in the Registrants’ Condensed Consolidated Balance Sheets are categorized based upon the level of judgment associated with the inputs used to measure their value. Hierarchical levels, as defined below and directly related to the amount of subjectivity associated with the inputs to fair valuations of these assets and liabilities, are as follows: Level 1: Inputs are unadjusted quoted prices in active markets for identical assets or liabilities at the measurement date. The types of assets carried at Level 1 fair value generally are exchange-traded derivatives and equity securities. Level 2: Inputs, other than quoted prices included in Level 1, are observable for the asset or liability, either directly or indirectly. Level 2 inputs include quoted prices for similar instruments in active markets, quoted prices for identical or similar assets or liabilities in inactive markets, inputs other than quoted prices that are observable for the asset or liability and inputs that are derived principally from or corroborated by observable market data by correlation or other means. Fair value assets and liabilities that are generally included in this category are derivatives with fair values based on inputs from actively quoted markets. A market approach is utilized to value the Registrants’ Level 2 natural gas derivative assets or liabilities. CenterPoint Energy’s Level 2 indexed debt securities derivative is valued using an option model and a discounted cash flow model, which uses projected dividends on the ZENS-Related Securities and a discount rate as observable inputs. Level 3: Inputs are unobservable for the asset or liability, and include situations where there is little, if any, market activity for the asset or liability. Unobservable inputs reflect the Registrants’ judgments about the assumptions market participants would use in pricing the asset or liability since limited market data exists. The Registrants develop these inputs based on the best information available, including the Registrants’ own data. The Registrants determine the appropriate level for each financial asset and liability on a quarterly basis.
Earnings Per Share	Basic earnings per common share is computed by dividing income available to common shareholders by the basic weighted average number of common shares outstanding during the period. Diluted earnings per common share is computed by dividing income available to common shareholders by the weighted average number of common shares outstanding, including all potentially dilutive common shares, if the effect of such common shares is dilutive. Diluted earnings per common share reflects the dilutive effect of potential common shares from share-based awards. The dilutive effect of restricted stock is computed using the treasury stock method, as applicable, which includes the incremental shares that would be hypothetically vested in excess of the number of shares assumed to be hypothetically repurchased with the assumed proceeds. Diluted earnings per common share will also reflect the dilutive effect of potential common shares from the conversion of the Convertible Notes. Convertible debt in which the principal amount must be settled in cash is excluded from the calculation of diluted earnings per share. There would be no interest expense adjustment to the numerator for the cash-settled portion of the Convertible Notes because that portion will always be settled in cash. The conversion spread value in shares will be included in diluted earnings per share using the if-converted method if the convertible debt is in the money. The denominator of diluted earnings per share is determined by dividing the conversion spread value of the share-settled portion of the Convertible Notes as of the reporting date by the average share price over the reporting period. For the three and nine months ended September 30, 2023, the convertible debt was not in the money; therefore, no incremental shares were assumed converted or included in the diluted earnings per share calculation below. For further details about the Convertible Notes, see Note 11.

- Definition

Disclosure of accounting policy for financing receivable.

+ References + Details

- Definition

Disclosure of accounting policy for revenue from contract with customer.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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+ Details

Derivative Instruments (Tables)

9 Months Ended

Sep. 30, 2023

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of Notional Amounts of Outstanding Derivative Positions

The table below summarizes CenterPoint Energy’s outstanding interest rate hedging activity:

September 30, 2023

December 31, 2022

Hedging Classification

Notional Principal

CenterPoint
Energy

(in millions)

Economic hedge (1)

—

(1)Relates to interest rate derivative instruments at SIGECO that terminated on May 1, 2023.

Schedule of Fair Value of Derivative Instruments

The following tables present information about derivative instruments and hedging activities. The first table provides a balance sheet overview of derivative assets and liabilities, while the last table provides a breakdown of the related income statement impacts.

Fair Value of Derivative Instruments and Hedged Items

CenterPoint Energy


		September 30, 2023				December 31, 2022
	Balance Sheet Location	Derivative Assets Fair Value		Derivative Liabilities Fair Value		Derivative Assets Fair Value		Derivative Liabilities Fair Value




Derivatives not designated as hedging instruments:		(in millions)
Natural gas derivatives (1)	Current Assets: Non-trading derivative assets	$	1	$	—	$	9	$	—
Natural gas derivatives (1)	Other Assets: Non-trading derivative assets	—		—		2		—

Interest rate derivatives	Current Assets: Non-trading derivative assets	—		—		1		—



Indexed debt securities derivative (2)	Current Liabilities	—		630		—		578

Total		$	1	$	630	$	12	$	578

CERC


		September 30, 2023				December 31, 2022
	Balance Sheet Location	Derivative Assets Fair Value		Derivative Liabilities Fair Value		Derivative Assets Fair Value		Derivative Liabilities Fair Value




Derivatives not designated as hedging instruments:		(in millions)
Natural gas derivatives (1)	Current Assets: Non-trading derivative assets	$	1	$	—	$	7	$	—
Natural gas derivatives (1)	Other Assets: Non-trading derivative assets	—		—		2		—






Total		$	1	$	—	$	9	$	—

(1)Natural gas contracts are subject to master netting arrangements. This netting applies to all undisputed amounts due or past due. However, the mark-to-market fair value of each natural gas contract is in an asset position with no offsetting amounts.

(2)Derivative component of the ZENS obligation that represents the ZENS holder’s option to receive the appreciated value of the reference shares at maturity and other payments to which they may be entitled. See Note 10 for further information.

Schedule of Income Statement Impact of Derivative Activity

Income Statement Impact of Hedge Accounting Activity (CenterPoint Energy)


		Three Months Ended September 30,				Nine Months Ended September 30,
	Income Statement Location	2023		2022		2023		2022
Derivatives not designated as hedging instruments:		(in millions)
Indexed debt securities derivative (1)	Gain (loss) on indexed debt securities	$	(47)	$	210	$	(52)	$	381

(1)The indexed debt securities derivative is recorded at fair value and changes in the fair value are recorded in CenterPoint Energy’s Condensed Statements of Consolidated Income.

Related Party Transactions (Houston Electric and CERC) (Tables)

9 Months Ended

Sep. 30, 2023

Schedule of Money Pool Investment and Borrowing

The table below summarizes CenterPoint Energy money pool activity:


	September 30, 2023						December 31, 2022
	Houston Electric			CERC			Houston Electric			CERC
	(in millions, except interest rates)
Money pool investments (borrowings) (1)	$	400		$	86		$	(642)		$	—
Weighted average interest rate	5.56		%	5.56		%	4.75		%	4.75		%

(1)Included in Accounts and notes receivable (payable)–affiliated companies on Houston Electric’s and CERC’s respective Condensed Consolidated Balance Sheets.

Schedule of Related Party Transactions

Amounts charged for these services were as follows and are included primarily in operation and maintenance expenses:


	Three Months Ended September 30,								Nine Months Ended September 30,
	2023				2022				2023				2022
	Houston Electric		CERC		Houston Electric		CERC		Houston Electric		CERC		Houston Electric		CERC
	(in millions)
Corporate service charges	$	40	$	56	$	38	$	54	$	115	$	162	$	114	$	163
Net affiliate service charges (billings)	(1)		1		3		(3)		(7)		7		(12)		12

The table below presents transactions among Houston Electric, CERC and their parent, CenterPoint Energy.


	Three Months Ended September 30,								Nine Months Ended September 30,
	2023				2022				2023				2022
	Houston Electric		CERC		Houston Electric		CERC		Houston Electric		CERC		Houston Electric		CERC
	(in millions)
Cash dividends paid to parent	$	79	$	36	$	74	$	13	$	239	$	347	$	141	$	124
Cash dividend paid to parent related to the sale of the Arkansas and Oklahoma Natural Gas businesses	—		—		—		—		—		—		—		720
Cash contribution from parent	235		—		—		—		885		500		1,143		125
Net assets acquired in the Restructuring	—		—		—		—		—		—		—		2,345
Non-cash capital contribution from parent in payment for property, plant and equipment below	—		—		—		—		—		—		38		54
Cash paid to parent for property, plant and equipment below	—		—		—		—		—		—		65		61
Property, plant and equipment from parent (1)	—		—		—		—		—		—		103		115

(1) Property, plant and equipment purchased from CenterPoint Energy at its net carrying value on the date of purchase.

New Accounting Pronouncements	9 Months Ended
New Accounting Pronouncements	Sep. 30, 2023
Accounting Standards Update and Change in Accounting Principle [Abstract]
New Accounting Pronouncements	New Accounting PronouncementsManagement believes that recently adopted standards and recently issued standards that are not yet effective will not have a material impact on the Registrants’ financial position, results of operations or cash flows upon adoption.

- Definition

The entire disclosure for change in accounting principle. Includes, but is not limited to, nature, reason, and method of adopting amendment to accounting standards or other change in accounting principle.

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Reference 23: http://www.xbrl.org/2003/role/disclosureRef
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-Paragraph 4
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Reference 24: http://www.xbrl.org/2003/role/disclosureRef
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Reference 25: http://www.xbrl.org/2003/role/disclosureRef
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Reference 26: http://www.xbrl.org/2003/role/disclosureRef
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+ Details

Regulatory Matters - Narrative (Details) $ in Millions				12 Months Ended
Regulatory Matters - Narrative (Details) $ in Millions	Apr. 05, 2023 USD ($)	Mar. 23, 2023 USD ($)	Jul. 01, 2022 USD ($)	Dec. 31, 2021 lease	Sep. 30, 2023 USD ($)	Jun. 29, 2023 USD ($)	Mar. 24, 2023 USD ($)	Jan. 04, 2023 USD ($)	Dec. 31, 2022 USD ($)	Oct. 19, 2022 USD ($)
Regulatory Assets [Line Items]
Regulatory assets current					$ 217				$ 1,385
Regulatory assets noncurrent					2,481				2,193
Disallowance of regulatory asset					53
Regulatory liability, approximate total gas cost					18				18
Regulatory asset remaining to recover through rates amount					5				11
CERC
Regulatory Assets [Line Items]
Regulatory assets current					205				1,336
Regulatory assets noncurrent					833				844
Regulatory liability, approximate total gas cost					17				17
Regulatory asset remaining to recover through rates amount					4				10
Houston Electric
Regulatory Assets [Line Items]
Regulatory assets noncurrent					775				778
Disallowance of regulatory asset					53
Number of leases entered into \| lease				2
Subsidiaries \| SIGECO
Regulatory Assets [Line Items]
Regulatory asset, authorized issuance costs							$ 341
Regulatory asset, issued						$ 341
Minnesota Public Utility Commission \| CERC
Regulatory Assets [Line Items]
Disallowance of regulatory asset										$ 36
Attorney General's Office \| CERC
Regulatory Assets [Line Items]
Regulatory assets										$ 409
IURC
Regulatory Assets [Line Items]
Regulatory asset, authorized issuance costs								$ 350
Public Utility Commission Of Texas \| Houston Electric \| TEEEF Lease One
Regulatory Assets [Line Items]
Recovery of deferred costs sought			$ 200
Annual revenue increase from lease agreements			$ 57
Regulatory asset, revenue requirement amount	$ 39
Regulatory asset, amortization period	82 months 15 days
Public Utility Commission Of Texas \| Houston Electric \| TEEEF Lease Two
Regulatory Assets [Line Items]
Annual revenue increase from lease agreements	$ 149
Regulatory asset, revenue requirement amount	$ 188
Regulatory asset, amortization period	78 months
February 2021 Winter Storm
Regulatory Assets [Line Items]
Regulatory assets current					92
February 2021 Winter Storm \| REP Bad Debt Expense
Regulatory Assets [Line Items]
Regulatory assets					8				8
February 2021 Winter Storm \| Operation and maintenance expense
Regulatory Assets [Line Items]
Regulatory assets					17				16
February 2021 Winter Storm \| CERC
Regulatory Assets [Line Items]
Regulatory assets current					92
Regulatory assets noncurrent					141
February 2021 Winter Storm \| Houston Electric \| REP Bad Debt Expense
Regulatory Assets [Line Items]
Regulatory assets					8				8
February 2021 Winter Storm \| Houston Electric \| Operation and maintenance expense
Regulatory Assets [Line Items]
Regulatory assets					17				16
February 2021 Winter Storm Event
Regulatory Assets [Line Items]
Regulatory asset, approximate total gas cost					2,000
Regulatory assets current									1,175
Regulatory assets noncurrent					141				202
Regulatory liability, amount remaining under prudence review					$ 75
February 2021 Winter Storm Event \| CERC
Regulatory Assets [Line Items]
Regulatory assets current									1,175
Regulatory assets noncurrent									$ 202
February 2021 Winter Storm Event \| Customer Rate Relief Bond Financing
Regulatory Assets [Line Items]
Cash proceeds received from government grants		$ 1,100

Earnings Per Share (CenterPoint Energy) (Tables)

9 Months Ended

Sep. 30, 2023

Earnings Per Share [Abstract]

Schedule of Earnings Per Share, Basic and Diluted

The following table reconciles numerators and denominators of CenterPoint Energy’s basic and diluted earnings per common share.


	Three Months Ended September 30,				Nine Months Ended September 30,
	2023		2022		2023		2022
	(in millions, except per share and share amounts)
Numerator:
Income from continuing operations	$	282	$	202	$	725	$	923
Less: Preferred stock dividend requirement (Note 18)	26		13		50		37







Income available to common shareholders - basic and diluted	$	256	$	189	$	675	$	886
Denominator:
Weighted average common shares outstanding - basic	631,185,000		629,509,000		630,854,000		629,374,000
Plus: Incremental shares from assumed conversions:
Restricted stock	1,858,000		3,559,000		2,183,000		3,559,000


Weighted average common shares outstanding - diluted	633,043,000		633,068,000		633,037,000		632,933,000







Earnings Per Common Share:


Basic Earnings Per Common Share	$	0.41	$	0.30	$	1.07	$	1.41


Diluted Earnings Per Common Share	$	0.40	$	0.30	$	1.07	$	1.40

Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022
Current Assets:
Cash and cash equivalents	$ 120	$ 74
Investment in equity securities	566	510
Accounts receivable, less allowance for credit losses	767	889
Accrued unbilled revenues	340	764
Natural gas and coal inventory	138	241
Materials and supplies	672	635
Non-trading derivative assets	1	10
Taxes receivable	67	20
Regulatory assets	217	1,385
Prepaid expenses and other current assets	134	171
Total current assets	3,022	4,699
Property, Plant and Equipment:
Property, plant and equipment	39,618	37,728
Less: accumulated depreciation and amortization	10,447	10,585
Property, plant and equipment, net	29,171	27,143
Other Assets:
Goodwill	4,160	4,294
Regulatory assets	2,481	2,193
Non-trading derivative assets	0	2
Other non-current assets	167	215
Total other assets	6,808	6,704
Total Assets	39,001	38,546
Current Liabilities:
Short-term borrowings	4	511
Current portion of VIE Securitization Bonds long-term debt	170	156
Indexed debt, net	5	7
Current portion of other long-term debt	1,255	1,346
Indexed debt securities derivative	630	578
Accounts payable	763	1,352
Taxes accrued	244	298
Interest accrued	179	159
Dividends accrued	126	144
Customer deposits	110	110
Other current liabilities	407	452
Total current liabilities	3,893	5,113
Other Liabilities:
Deferred income taxes, net	4,128	3,986
Benefit obligations	533	547
Regulatory liabilities	3,195	3,245
Other non-current liabilities	829	774
Total other liabilities	8,685	8,552
Long-term Debt:
VIE Securitization Bonds, net	408	161
Other long-term debt, net	16,430	14,675
Total long-term debt, net	16,838	14,836
Commitments and Contingencies (Note 13)
Temporary Equity (Note 18)	0	3
Shareholders’ Equity:
Cumulative preferred stock	0	790
Common stock	6	6
Additional paid-in capital	8,581	8,568
Retained earnings	1,027	709
Accumulated other comprehensive loss	(29)	(31)
Total shareholders’ equity	9,585	10,042
Total Liabilities and Shareholders’ Equity	$ 39,001	$ 38,546

Employee Benefit Plans (Tables)

9 Months Ended

Sep. 30, 2023

Retirement Benefits [Abstract]

Schedule of Net Benefit Costs

The Registrants’ net periodic cost, before considering amounts subject to overhead allocations for capital expenditure projects or for amounts subject to deferral for regulatory purposes, includes the following components relating to pension and postretirement benefits:

Pension Benefits (CenterPoint Energy)


	Three Months Ended September 30,				Nine Months Ended September 30,
	2023		2022		2023		2022
	(in millions)
Service cost (1)	$	6	$	7	$	19	$	23
Interest cost (2)	19		20		57		52
Expected return on plan assets (2)	(19)		(21)		(57)		(69)

Amortization of net loss (2)	7		8		21		22
Settlement cost (2) (3)	—		8		—		38

Net periodic cost	$	13	$	22	$	40	$	66

(1)Amounts presented in the table above are included in Operation and maintenance expense in CenterPoint Energy’s Condensed Statements of Consolidated Income, net of amounts capitalized and regulatory deferrals.

(2)Amounts presented in the table above are included in Other income, net in CenterPoint Energy’s Condensed Statements of Consolidated Income, net of regulatory deferrals.

(3)Amounts presented represent a one-time, non-cash settlement cost, prior to regulatory deferrals, which are required when the total lump sum distributions or other settlements of plan benefit obligations during a plan year exceed the service cost and interest cost components of the net periodic cost for that year.

Postretirement Benefits


	Three Months Ended September 30,
	2023						2022
	CenterPoint Energy		Houston Electric		CERC		CenterPoint Energy		Houston Electric		CERC
	(in millions)
Service cost (1)	$	—	$	—	$	—	$	—	$	—	$	1
Interest cost (2)	3		1		1		3		1		1
Expected return on plan assets (2)	(1)		(1)		—		(1)		(1)		(1)
Amortization of prior service credit (2)	(1)		(1)		1		(1)		(1)		—
Amortization of net loss (2)	(2)		(1)		(1)		(1)		(1)		—




Net periodic cost (benefit)	$	(1)	$	(2)	$	1	$	—	$	(2)	$	1

	Nine Months Ended September 30,
	2023						2022
	CenterPoint Energy		Houston Electric		CERC		CenterPoint Energy		Houston Electric		CERC
	(in millions)
Service cost (1)	$	1	$	—	$	—	$	1	$	—	$	1
Interest cost (2)	9		4		3		7		3		3
Expected return on plan assets (2)	(4)		(3)		—		(3)		(3)		(1)
Amortization of prior service cost (credit) (2)	(2)		(4)		2		(2)		(3)		1
Amortization of net loss (2)	(6)		(3)		(2)		(3)		(2)		(1)




Net periodic cost (benefit)	$	(2)	$	(6)	$	3	$	—	$	(5)	$	3

(1)Amounts presented in the tables above are included in Operation and maintenance expense in each of the Registrants’ respective Condensed Statements of Consolidated Income, net of amounts capitalized and regulatory deferrals.

(2)Amounts presented in the tables above are included in Other income (expense), net in each of the Registrants’ respective Condensed Statements of Consolidated Income, net of regulatory deferrals.

Schedule of Benefit Plan Contributions

The table below reflects the expected contributions to be made to the pension and postretirement benefit plans during 2023:


	CenterPoint Energy		Houston Electric		CERC
	(in millions)
Expected contribution to pension plans during 2023	$	31	$	—	$	—
Expected contribution to postretirement benefit plans in 2023	8		1		4

The table below reflects the contributions made to the pension and postretirement benefit plans:


	Three Months Ended September 30, 2023						Nine Months Ended September 30, 2023
	CenterPoint Energy		Houston Electric		CERC		CenterPoint Energy		Houston Electric		CERC
	(in millions)
Pension plans (1)	$	26	$	—	$	—	$	30	$	—	$	—
Postretirement benefit plans	1		—		1		5		—		3

(1)A discretionary contribution in the amount of $24 million was made in September 2023.

Earnings Per Share (CenterPoint Energy)

9 Months Ended

Sep. 30, 2023

Earnings Per Share [Abstract]

Earnings Per Share (CenterPoint Energy)

Basic earnings per common share is computed by dividing income available to common shareholders by the basic weighted average number of common shares outstanding during the period. Diluted earnings per common share is computed by dividing income available to common shareholders by the weighted average number of common shares outstanding, including all potentially dilutive common shares, if the effect of such common shares is dilutive.

Diluted earnings per common share reflects the dilutive effect of potential common shares from share-based awards. The dilutive effect of restricted stock is computed using the treasury stock method, as applicable, which includes the incremental

shares that would be hypothetically vested in excess of the number of shares assumed to be hypothetically repurchased with the assumed proceeds.

Diluted earnings per common share will also reflect the dilutive effect of potential common shares from the conversion of the Convertible Notes. Convertible debt in which the principal amount must be settled in cash is excluded from the calculation of diluted earnings per share. There would be no interest expense adjustment to the numerator for the cash-settled portion of the Convertible Notes because that portion will always be settled in cash. The conversion spread value in shares will be included in diluted earnings per share using the if-converted method if the convertible debt is in the money. The denominator of diluted earnings per share is determined by dividing the conversion spread value of the share-settled portion of the Convertible Notes as of the reporting date by the average share price over the reporting period. For the three and nine months ended September 30, 2023, the convertible debt was not in the money; therefore, no incremental shares were assumed converted or included in the diluted earnings per share calculation below. For further details about the Convertible Notes, see Note 11.

The following table reconciles numerators and denominators of CenterPoint Energy’s basic and diluted earnings per common share.


	Three Months Ended September 30,				Nine Months Ended September 30,
	2023		2022		2023		2022
	(in millions, except per share and share amounts)
Numerator:
Income from continuing operations	$	282	$	202	$	725	$	923
Less: Preferred stock dividend requirement (Note 18)	26		13		50		37







Income available to common shareholders - basic and diluted	$	256	$	189	$	675	$	886
Denominator:
Weighted average common shares outstanding - basic	631,185,000		629,509,000		630,854,000		629,374,000
Plus: Incremental shares from assumed conversions:
Restricted stock	1,858,000		3,559,000		2,183,000		3,559,000


Weighted average common shares outstanding - diluted	633,043,000		633,068,000		633,037,000		632,933,000







Earnings Per Common Share:


Basic Earnings Per Common Share	$	0.41	$	0.30	$	1.07	$	1.41


Diluted Earnings Per Common Share	$	0.40	$	0.30	$	1.07	$	1.40

Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022
Cash and cash equivalents	$ 120	$ 74
Accounts receivable, less allowance for credit losses	767	889
Allowance for credit losses	31	38
Accrued unbilled revenues, allowance for credit losses	1	4
Prepaid expenses and other current assets	134	171
Regulatory assets	$ 2,481	$ 2,193
Preferred Stock [Abstract]
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, authorized (in shares)	20,000,000	20,000,000
Preferred stock, outstanding (in shares)	0	800,000
Preferred stock aggregate liquidation preference	$ 0	$ 800
Common Stock [Abstract]
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, authorized (in shares)	1,000,000,000	1,000,000,000
Common stock, outstanding (in shares)	631,209,962	629,535,631
Variable Interest Entity, Primary Beneficiary
Cash and cash equivalents	$ 118	$ 75
Accounts receivable, less allowance for credit losses	32	22
Accrued unbilled revenues, after allowance for credit losses, current	2	0
Prepaid expenses and other current assets	14	13
Regulatory assets	$ 438	$ 229

Condensed Statements of Consolidated Comprehensive Income (Unaudited) (Parenthetical) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Statement of Comprehensive Income [Abstract]
Adjustment to pension and other postretirement plans, tax	$ 0	$ (9)	$ 0	$ (5)
Net deferred gain from cash flow hedges, tax	0	0	0	0
Reclassification of deferred loss from cash flow hedges realized in net income, tax	$ 0	$ 0	$ 0	$ 0

Condensed Statements of Consolidated Cash Flows (Unaudited) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Cash Flows from Operating Activities:
Net income	$ 725	$ 923
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	1,042	974
Deferred income taxes	94	26
Loss (gain) on divestitures	12	(303)
Loss (gain) on equity securities	(56)	284
Loss (gain) on indexed debt securities	52	(381)
Pension contributions	(30)	(6)
Changes in other assets and liabilities:
Accounts receivable and unbilled revenues, net	528	95
Inventory	63	(224)
Taxes receivable	(47)	1
Accounts payable	(443)	(119)
Net regulatory assets and liabilities	1,102	148
Other current assets and liabilities	(41)	(199)
Other non-current assets and liabilities	59	34
Other operating activities, net	9	72
Net cash provided by operating activities	3,069	1,325
Cash Flows from Investing Activities:
Capital expenditures	(3,323)	(3,079)
Proceeds from sale of marketable securities	0	702
Proceeds from divestitures, net of cash divested	145	2,075
Other investing activities, net	(12)	73
Net cash used in investing activities	(3,190)	(229)
Cash Flows from Financing Activities:
Increase (decrease) in short-term borrowings, net	(14)	457
Payment of obligation for finance lease	0	(218)
Payments of commercial paper, net	(1,496)	(1,620)
Proceeds from long-term debt and term loans	5,574	2,089
Payments of long-term debt and term loans, including make-whole premiums	(2,613)	(1,519)
Payment of debt issuance costs	(50)	(26)
Payment of dividends on Common Stock	(359)	(328)
Payment of dividends on Preferred Stock	(49)	(48)
Other financing activities, net	(25)	(7)
Net cash provided by (used in) financing activities	168	(1,220)
Net Increase (Decrease) in Cash, Cash Equivalents and Restricted Cash	47	(124)
Cash, Cash Equivalents and Restricted Cash at Beginning of Period	91	254
Cash, Cash Equivalents and Restricted Cash at End of Period	138	130
Payments for the Redemption of Preferred Stock	$ (800)	$ 0

Revenue Recognition and Allowance for Credit Losses - Disaggregation of Revenue (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Disaggregation of Revenue [Line Items]
Revenue from contracts	$ 1,864	$ 1,906	$ 6,497	$ 6,653
Other	(4)	(3)	17	(43)
Total	1,860	1,903	6,514	6,610
Lease income	2	1	6	5
Houston Electric
Disaggregation of Revenue [Line Items]
Revenue from contracts	1,100	949	2,821	2,597
Other	(17)	(14)	(37)	(35)
Total	1,083	935	2,784	2,562
CERC
Disaggregation of Revenue [Line Items]
Revenue from contracts	575	667	3,012	3,257
Other	8	5	33	(25)
Total	583	672	3,045	3,232
Lease income	1	1	3	2
Electric
Disaggregation of Revenue [Line Items]
Revenue from contracts	1,274	1,155	3,272	3,113
Other	(13)	(9)	(22)	(21)
Total	1,261	1,146	3,250	3,092
Natural Gas
Disaggregation of Revenue [Line Items]
Revenue from contracts	589	686	3,100	3,358
Other	8	6	36	(24)
Total	597	692	3,136	3,334
Corporate and Other
Disaggregation of Revenue [Line Items]
Revenue from contracts	1	65	125	182
Other	1	0	3	2
Total	$ 2	$ 65	$ 128	$ 184

Equity Securities and Indexed Debt Securities (ZENS) (CenterPoint Energy) - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 1999
Debt and Equity Securities, FV-NI [Line Items]
Unrealized gains (losses)	$ 49	$ (206)	$ 56	$ (370)
Subordinated Debt ZENS
Debt and Equity Securities, FV-NI [Line Items]
Debt instrument, face amount	$ 828		$ 828		$ 1,000
Subordinated note cash exchangeable percentage of fair value (as a percent)			95.00%
ZENS annual interest rate (as a percent)	2.00%		2.00%
Target annual yield on reference shares (as a percent)	2.309%		2.309%
Contingent principal amount of ZENS	$ 20		$ 20

Equity (Tables)

9 Months Ended

Sep. 30, 2023

Equity [Abstract]

Schedule of Dividends Declared

Dividends Declared and Paid (CenterPoint Energy)


	Dividends Declared Per Share								Dividends Paid Per Share
	Three Months Ended September 30,				Nine Months Ended September 30,				Three Months Ended September 30,				Nine Months Ended September 30,
	2023		2022		2023		2022		2023		2022		2023		2022
Common Stock	$	0.390	$	0.360	$	0.580	$	0.530	$	0.190	$	0.180	$	0.570	$	0.520
Series A Preferred Stock	30.625		30.625		30.625		30.625		30.625		30.625		61.250		61.250

Schedule of Preferred Stock

Preferred Stock (CenterPoint Energy)


	Liquidation Preference Per Share		Shares Outstanding as of		Outstanding Value as of
			September 30, 2023	December 31, 2022	September 30, 2023		December 31, 2022
	(in millions, except shares and per share amounts)
Series A Preferred Stock	$	1,000	—	800,000	$	—	$	790


			—	800,000	$	—	$	790

Schedule of Dividend Requirement on Preferred Stock

Income Allocated to Preferred Shareholders (CenterPoint Energy)


	Three Months Ended September 30,				Nine Months Ended September 30,
	2023		2022		2023		2022
	(in millions)
Series A Preferred Stock	$	26	$	13	$	50	$	37




Total income allocated to preferred shareholders	$	26	$	13	$	50	$	37

Schedule of Accumulated Other Comprehensive Income (Loss)

Changes in accumulated comprehensive income (loss) are as follows:


	Three Months Ended September 30,
	2023						2022
	CenterPoint Energy		Houston Electric		CERC		CenterPoint Energy		Houston Electric		CERC
	(in millions)
Beginning Balance	$	(32)	$	—	$	15	$	(85)	$	—	$	10
Other comprehensive income (loss) before reclassifications:
Remeasurement of pension and other postretirement plans	—		—		—		(10)		—		—


Amounts reclassified from accumulated other comprehensive income (loss):
Net deferred gain from cash flow hedges	2		—		—		—		—		—
Prior service cost (1)	1		—		—		—		—		—
Actuarial losses (1)	—		—		—		2		—		—
Settlement (2)	—		—		—		1		—		—

Tax benefit (expense)	—		—		—		9		—		—
Net current period other comprehensive income (loss)	3		—		—		2		—		—
Ending Balance	$	(29)	$	—	$	15	$	(83)	$	—	$	10

	Nine Months Ended September 30,
	2023						2022
	CenterPoint Energy		Houston Electric		CERC		CenterPoint Energy		Houston Electric		CERC
	(in millions)
Beginning Balance	$	(31)	$	—	$	16	$	(64)	$	—	$	10
Other comprehensive income (loss) before reclassifications:
Remeasurement of pension and other postretirement plans	—		—		—		(44)		—		—



Amounts reclassified from accumulated other comprehensive income (loss):
Net deferred gain from cash flow hedges	2		—		—		—		—		—
Prior service cost (1)	—		—		(1)		1		—		—
Actuarial losses (1)	—		—		—		4		—		—
Settlement (2)	—		—		—		14		—		—


Tax benefit (expense)	—		—		—		5		—		—
Net current period other comprehensive income (loss)	2		—		(1)		(19)		—		—
Ending Balance	$	(29)	$	—	$	15	$	(83)	$	—	$	10

(1)Amounts are included in the computation of net periodic cost and are reflected in Other income, net in each of the Registrants’ respective Condensed Statements of Consolidated Income.

(2)Amounts presented represent a one-time, non-cash settlement cost (benefit), prior to regulatory deferrals, which are required when the total lump sum distributions or other settlements of plan benefit obligations during a plan year exceed the service cost and interest cost components of the net periodic cost for that year. Amounts presented in the table above are included in Other income (expense), net in CenterPoint Energy’s Statements of Consolidated Income, net of regulatory deferrals.

- Definition

Tabular disclosure of an entity's stock, including par or stated value per share, number and dollar amount of share subscriptions, shares authorized, shares issued, shares outstanding, number and dollar amount of shares held in an employee trust, dividend per share, total dividends, share conversion features, par value plus additional paid in capital, the value of treasury stock and other information necessary to a fair presentation, and EPS information. Stock by class includes common, convertible, and preferred stocks which are not redeemable or redeemable solely at the option of the issuer. Includes preferred stock with redemption features that are solely within the control of the issuer and mandatorily redeemable stock if redemption is required to occur only upon liquidation or termination of the reporting entity. If more than one issue is outstanding, state the title of each issue and the corresponding dollar amount; dollar amount of any shares subscribed but unissued and the deduction of subscriptions receivable there from; number of shares authorized, issued, and outstanding.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(27))
-SubTopic 10
-Topic 210
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(28))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480008/505-10-S99-1

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(29))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1

Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 3
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481112/505-10-50-3

Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 4
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481112/505-10-50-4

Reference 7: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 5
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481112/505-10-50-5

Reference 8: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 45
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481142/505-10-45-2

Reference 9: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 10
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481112/505-10-50-10

Reference 10: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 8
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481112/505-10-50-8

Reference 11: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 480
-SubTopic 10
-Section S99
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480244/480-10-S99-1

Reference 12: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 505
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-Name Accounting Standards Codification
-Section 50
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-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481112/505-10-50-6

Reference 13: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 7
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481112/505-10-50-7

+ Details

Condensed Statements of Consolidated Income (Unaudited) - CERC - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Revenues:
Utility revenues	$ 1,849	$ 1,829	$ 6,355	$ 6,400
Non-utility revenues	11	74	159	210
Total	1,860	1,903	6,514	6,610
Expenses:
Utility natural gas	192	349	1,550	1,860
Non-utility cost of revenues, including natural gas	1	52	98	143
Operation and maintenance	648	670	1,990	2,020
Depreciation and amortization	374	329	1,042	974
Taxes other than income taxes	127	119	395	401
Total	1,342	1,519	5,075	5,398
Operating Income	518	384	1,439	1,212
Other Income (Expense):
Gain on sale	0	0	(12)	303
Interest expense and other finance charges	(176)	(116)	(489)	(375)
Other income (expense), net	13	8	39	25
Total	(168)	(107)	(469)	39
Income Before Income Taxes	350	277	970	1,251
Income tax expense	68	75	245	328
Net Income	282	202	725	923
CERC
Revenues:
Utility revenues	574	663	3,014	3,206
Non-utility revenues	9	9	31	26
Total	583	672	3,045	3,232
Expenses:
Utility natural gas	141	276	1,399	1,660
Non-utility cost of revenues, including natural gas	1	1	2	3
Operation and maintenance	187	190	616	630
Depreciation and amortization	125	113	365	333
Taxes other than income taxes	53	50	181	185
Total	507	630	2,563	2,811
Operating Income	76	42	482	421
Other Income (Expense):
Gain on sale	0	0	0	557
Interest expense and other finance charges	(44)	(32)	(131)	(91)
Other income (expense), net	6	0	12	(11)
Total	(38)	(32)	(119)	455
Income Before Income Taxes	38	10	363	876
Income tax expense	10	17	80	220
Net Income	$ 28	$ (7)	$ 283	$ 656

Related Party Transactions (Houston Electric and CERC) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Houston Electric
Related Party Transaction [Line Items]
Cash dividends paid to parent	$ 79	$ 74	$ 239	$ 141
Cash dividend paid to parent related to the sale of the Arkansas and Oklahoma Natural Gas businesses	0	0	0	0
Contribution from parent	235	0	885	1,143
Net assets acquired in the Restructuring	0	0	0	0
Non-cash capital contribution from parent in payment for property, plant and equipment below	0	0	0	38
Cash paid to parent for property, plant and equipment below	0	0	0	65
Property, plant and equipment from parent	0	0	0	103
Houston Electric \| Operation and maintenance expense
Related Party Transaction [Line Items]
Net affiliate service charges (billings)	(1)	3	(7)	(12)
Houston Electric \| Operation and maintenance expense \| CenterPoint Energy
Related Party Transaction [Line Items]
Corporate service charges	$ 40	38	$ 115	114
Houston Electric \| Investments
Related Party Transaction [Line Items]
Weighted average interest rate	5.56%		5.56%		4.75%
CERC
Related Party Transaction [Line Items]
Cash dividends paid to parent	$ 36	13	$ 347	124
Cash dividend paid to parent related to the sale of the Arkansas and Oklahoma Natural Gas businesses	0	0	0	720
Contribution from parent	0	0	500	125
Net assets acquired in the Restructuring	0	0	0	2,345
Non-cash capital contribution from parent in payment for property, plant and equipment below	0	0	0	54
Cash paid to parent for property, plant and equipment below	0	0	0	61
Property, plant and equipment from parent	0	0	0	115
CERC \| Operation and maintenance expense
Related Party Transaction [Line Items]
Net affiliate service charges (billings)	1	(3)	7	12
CERC \| Operation and maintenance expense \| CenterPoint Energy
Related Party Transaction [Line Items]
Corporate service charges	$ 56	$ 54	$ 162	$ 163
CERC \| Investments
Related Party Transaction [Line Items]
Weighted average interest rate	5.56%		5.56%		4.75%
Accounts and notes receivable (payable) - affiliate companies \| Houston Electric
Related Party Transaction [Line Items]
Money pool investments (borrowings)	$ 400		$ 400		$ (642)
Accounts and notes receivable (payable) - affiliate companies \| CERC
Related Party Transaction [Line Items]
Money pool investments (borrowings)	$ 86		$ 86		$ 0

Revenue Recognition and Allowance for Credit Losses (Tables)

9 Months Ended

Sep. 30, 2023

Revenue from Contract with Customer [Abstract]

Schedule of Disaggregation of Revenue

The following tables disaggregate revenues by reportable segment and major source:

CenterPoint Energy


	Three Months Ended September 30, 2023
	Electric		Natural Gas		Corporate and Other		Total
	(in millions)
Revenue from contracts	$	1,274	$	589	$	1	$	1,864

Other (1)	(13)		8		1		(4)

Total revenues	$	1,261	$	597	$	2	$	1,860

	Nine Months Ended September 30, 2023
	Electric		Natural Gas		Corporate and Other		Total
	(in millions)
Revenue from contracts	$	3,272	$	3,100	$	125	$	6,497
Other (1)	(22)		36		3		17

Total revenues	$	3,250	$	3,136	$	128	$	6,514


	Three Months Ended September 30, 2022
	Electric		Natural Gas		Corporate and Other		Total
	(in millions)
Revenue from contracts	$	1,155	$	686	$	65	$	1,906
Other (1)	(9)		6		—		(3)

Total revenues	$	1,146	$	692	$	65	$	1,903

	Nine Months Ended September 30, 2022
	Electric		Natural Gas		Corporate and Other		Total
	(in millions)
Revenue from contracts	$	3,113	$	3,358	$	182	$	6,653
Other (1)	(21)		(24)		2		(43)

Total revenues	$	3,092	$	3,334	$	184	$	6,610

(1)Primarily consists of income from ARPs and leases. Total lease income was $2 million and $1 million for the three months ended September 30, 2023 and 2022, respectively, and $6 million and $5 million for the nine months ended September 30, 2023 and 2022, respectively.

Houston Electric


	Three Months Ended September 30,				Nine Months Ended September 30,
	2023		2022		2023		2022
	(in millions)
Revenue from contracts	$	1,100	$	949	$	2,821	$	2,597
Other (1)	(17)		(14)		(37)		(35)
Total revenues	$	1,083	$	935	$	2,784	$	2,562

(1)Primarily consists of income from ARPs and leases. Lease income was not significant for the three and nine months ended September 30, 2023 and 2022.

CERC


	Three Months Ended September 30,				Nine Months Ended September 30,
	2023		2022		2023		2022
	(in millions)
Revenue from contracts	$	575	$	667	$	3,012	$	3,257
Other (1)	8		5		33		(25)

Total revenues	$	583	$	672	$	3,045	$	3,232

(1)Primarily consists of income from ARPs and leases. Lease income was $1 million for both the three months ended September 30, 2023 and 2022. Lease income was $3 million and $2 million, respectively, for the nine months ended September 30, 2023 and 2022.

Schedule of Contract with Customer, Contract Asset, Contract Liability and Receivable

The opening and closing balances of accounts receivable, other accrued unbilled revenue, contract assets and contract liabilities from contracts with customers are as follows:

CenterPoint Energy


	Accounts Receivable		Other Accrued Unbilled Revenues		Contract Assets			Contract Liabilities
	(in millions)
Opening balance as of December 31, 2022	$	858	$	764	$	4		$	45
Closing balance as of September 30, 2023	733		340		—			5
Decrease	$	(125)	$	(424)	$	(4)	(1)	$	(40)	(1)

(1)Decrease primarily related to the completed sale of Energy Systems Group on June 30, 2023.

The amount of revenue recognized during the nine-month period ended September 30, 2023 that was included in the opening contract liability was $2 million. The difference between the opening and closing balances of the contract liabilities primarily results from the timing difference between CenterPoint Energy’s performance and the customer’s payment.

Houston Electric


	Accounts Receivable		Other Accrued Unbilled Revenues		Contract Liabilities
	(in millions)
Opening balance as of December 31, 2022	$	271	$	142	$	2
Closing balance as of September 30, 2023	459		182		5
Increase (decrease)	$	188	$	40	$	3

The amount of revenue recognized during the nine-month period ended September 30, 2023 that was included in the opening contract liability was $2 million. The difference between the opening and closing balances of the contract liabilities primarily results from the timing difference between Houston Electric’s performance and the customer’s payment.

CERC


	Accounts Receivable		Other Accrued Unbilled Revenues
	(in millions)
Opening balance as of December 31, 2022	$	478	$	573
Closing balance as of September 30, 2023	230		119
Decrease	$	(248)	$	(454)

CERC does not have any opening or closing contract asset or contract liability balances.

Condensed Consolidated Balance Sheets (Unaudited) - Houston Electric - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022
Current Assets:
Cash and cash equivalents	$ 120	$ 74
Accounts receivable, less allowance for credit losses	767	889
Accrued unbilled revenues	340	764
Materials and supplies	672	635
Taxes receivable	67	20
Prepaid expenses and other current assets	134	171
Total current assets	3,022	4,699
Property, Plant and Equipment:
Property, plant and equipment	39,618	37,728
Less: accumulated depreciation and amortization	10,447	10,585
Property, plant and equipment, net	29,171	27,143
Other Assets:
Regulatory assets	2,481	2,193
Other non-current assets	167	215
Total other assets	6,808	6,704
Total Assets	39,001	38,546
Current Liabilities:
Current portion of VIE Securitization Bonds long-term debt	170	156
Accounts payable	763	1,352
Taxes accrued	244	298
Interest accrued	179	159
Other current liabilities	407	452
Total current liabilities	3,893	5,113
Other Liabilities:
Deferred income taxes, net	4,128	3,986
Benefit obligations	533	547
Regulatory liabilities	3,195	3,245
Other non-current liabilities	829	774
Total other liabilities	8,685	8,552
Long-term Debt:
VIE Securitization Bonds, net	408	161
Other long-term debt, net	16,430	14,675
Total long-term debt, net	16,838	14,836
Commitments and Contingencies (Note 13)
Member’s Equity:
Common stock	6	6
Additional paid-in capital	8,581	8,568
Retained earnings	1,027	709
Total shareholders’ equity	9,585	10,042
Total Liabilities and Shareholders’ Equity	39,001	38,546
Houston Electric
Current Assets:
Cash and cash equivalents	113	75
Accrued unbilled revenues	182	142
Materials and supplies	489	471
Taxes receivable	8	0
Prepaid expenses and other current assets	33	41
Total current assets	1,716	1,061
Property, Plant and Equipment:
Property, plant and equipment	19,056	17,753
Less: accumulated depreciation and amortization	4,425	4,292
Property, plant and equipment, net	14,631	13,461
Other Assets:
Regulatory assets	775	778
Other non-current assets	37	39
Total other assets	812	817
Total Assets	17,159	15,339
Current Liabilities:
Current portion of VIE Securitization Bonds long-term debt	159	156
Taxes accrued	152	150
Interest accrued	93	83
Other current liabilities	90	88
Total current liabilities	945	1,645
Other Liabilities:
Deferred income taxes, net	1,359	1,229
Benefit obligations	38	38
Regulatory liabilities	1,032	1,155
Other non-current liabilities	113	77
Total other liabilities	2,542	2,499
Long-term Debt:
VIE Securitization Bonds, net	81	161
Other long-term debt, net	7,425	6,036
Total long-term debt, net	7,506	6,197
Commitments and Contingencies (Note 13)
Member’s Equity:
Common stock	0	0
Additional paid-in capital	4,745	3,860
Retained earnings	1,421	1,138
Total shareholders’ equity	6,166	4,998
Total Liabilities and Shareholders’ Equity	17,159	15,339
Houston Electric \| Nonrelated Party
Current Assets:
Accounts receivable, less allowance for credit losses	482	311
Current Liabilities:
Accounts payable	359	413
Houston Electric \| Affiliated Entity
Current Assets:
Accounts receivable, less allowance for credit losses	409	21
Current Liabilities:
Accounts payable	$ 92	$ 755

Fair Value Measurements

9 Months Ended

Sep. 30, 2023

Fair Value Disclosures [Abstract]

Fair Value Measurements

Assets and liabilities that are recorded at fair value in the Registrants’ Condensed Consolidated Balance Sheets are categorized based upon the level of judgment associated with the inputs used to measure their value. Hierarchical levels, as defined below and directly related to the amount of subjectivity associated with the inputs to fair valuations of these assets and liabilities, are as follows:

Level 1: Inputs are unadjusted quoted prices in active markets for identical assets or liabilities at the measurement date. The types of assets carried at Level 1 fair value generally are exchange-traded derivatives and equity securities.

Level 2: Inputs, other than quoted prices included in Level 1, are observable for the asset or liability, either directly or indirectly. Level 2 inputs include quoted prices for similar instruments in active markets, quoted prices for identical or similar assets or liabilities in inactive markets, inputs other than quoted prices that are observable for the asset or liability and inputs that are derived principally from or corroborated by observable market data by correlation or other means. Fair value assets and liabilities that are generally included in this category are derivatives with fair values based on inputs from actively quoted markets. A market approach is utilized to value the Registrants’ Level 2 natural gas derivative assets or liabilities. CenterPoint Energy’s Level 2 indexed debt securities derivative is valued using an option model and a discounted cash flow model, which uses projected dividends on the ZENS-Related Securities and a discount rate as observable inputs.

Level 3: Inputs are unobservable for the asset or liability, and include situations where there is little, if any, market activity for the asset or liability. Unobservable inputs reflect the Registrants’ judgments about the assumptions market participants

would use in pricing the asset or liability since limited market data exists. The Registrants develop these inputs based on the best information available, including the Registrants’ own data.

The Registrants determine the appropriate level for each financial asset and liability on a quarterly basis.

The following tables present information about the Registrants’ assets and liabilities measured at fair value on a recurring basis as of September 30, 2023 and December 31, 2022 and indicate the fair value hierarchy of the valuation techniques utilized by the Registrants to determine such fair value.

CenterPoint Energy


	September 30, 2023						December 31, 2022
	Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3		Total
Assets	(in millions)
Equity securities	$	566	$	—	$	—	$	566	$	510	$	—	$	—	$	510
Investments, including money market funds (1)	31		—		—		31		32		—		—		32
Interest rate derivatives	—		—		—		—		—		1		—		1
Natural gas derivatives	—		1		—		1		—		11		—		11



Total assets	$	597	$	1	$	—	$	598	$	542	$	12	$	—	$	554
Liabilities
Indexed debt securities derivative	$	—	$	630	$	—	$	630	$	—	$	578	$	—	$	578





Total liabilities	$	—	$	630	$	—	$	630	$	—	$	578	$	—	$	578

Houston Electric


	September 30, 2023						December 31, 2022
	Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3		Total
Assets	(in millions)
Investments, including money market funds (1)	$	14	$	—	$	—	$	14	$	17	$	—	$	—	$	17

Total assets	$	14	$	—	$	—	$	14	$	17	$	—	$	—	$	17

CERC


	September 30, 2023						December 31, 2022
	Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3		Total
Assets	(in millions)

Investments, including money market funds (1)	$	14	$	—	$	—	$	14	$	14	$	—	$	—	$	14
Natural gas derivatives	—		1		—		1		—		9		—		9
Total assets	$	14	$	1	$	—	$	15	$	14	$	9	$	—	$	23

(1)Amounts are included in Prepaid expenses and other current assets in the Condensed Consolidated Balance Sheets.

Estimated Fair Value of Financial Instruments

The fair values of cash and cash equivalents, investments in debt and equity securities measured at fair value and short-term borrowings are estimated to be approximately equivalent to carrying amounts and have been excluded from the table below. The carrying amounts of non-trading derivative assets and liabilities and CenterPoint Energy’s ZENS indexed debt securities derivative are stated at fair value and are excluded from the table below. The fair value of each debt instrument is determined by multiplying the principal amount of each debt instrument by a combination of historical trading prices and comparable issue data. These liabilities, which are not measured at fair value in the Registrants’ Condensed Consolidated Balance Sheets, but for which the fair value is disclosed, would be classified as Level 2 in the fair value hierarchy.


	September 30, 2023						December 31, 2022
	CenterPoint Energy (1)		Houston Electric (1)		CERC		CenterPoint Energy (1)		Houston Electric (1)		CERC
Long-term debt, including current maturities	(in millions)


Carrying amount	$	18,263	$	7,665	$	4,243	$	16,338	$	6,353	$	4,826
Fair value	16,283		6,397		3,908		14,990		5,504		4,637

(1)Includes Securitization Bonds, as applicable.

- Definition

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

+ References + Details

Goodwill and Other Intangibles (CenterPoint Energy and CERC) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022	Dec. 31, 2020
Goodwill [Roll Forward]
Goodwill, beginning balance			$ 4,294
Disposals			134
Goodwill, ending balance	$ 4,160		4,160
Finite-Live Intangible Assets [Abstract]
Gross Carrying Amount	2		2		$ 63
Accumulated Amortization	(1)		(1)		(25)
Net Balance	1		1		38
Depreciation and amortization expense
Finite-Live Intangible Assets [Abstract]
Amortization expense of intangible assets recorded in Depreciation and amortization	0	$ 1	3	$ 4
Customer relationships
Finite-Live Intangible Assets [Abstract]
Gross Carrying Amount	0		0		33
Accumulated Amortization	0		0		(16)
Net Balance	0		0		17
Trade names
Finite-Live Intangible Assets [Abstract]
Gross Carrying Amount	0		0		16
Accumulated Amortization	0		0		(6)
Net Balance	0		0		10
Operation and maintenance agreements
Finite-Live Intangible Assets [Abstract]
Gross Carrying Amount	0		0		12
Accumulated Amortization	0		0		(2)
Net Balance	0		0		10
Other
Finite-Live Intangible Assets [Abstract]
Gross Carrying Amount	2		2		2
Accumulated Amortization	(1)		(1)		(1)
Net Balance	1		1		$ 1
CERC
Goodwill [Roll Forward]
Goodwill, beginning balance			1,583
Goodwill, ending balance	1,583		1,583
Electric
Goodwill [Roll Forward]
Goodwill, beginning balance			936
Disposals			0
Goodwill, ending balance	936		936
Goodwill, Impaired, Accumulated Impairment Loss [Abstract]
Accumulated goodwill impairment charge						$ 185
Natural Gas
Goodwill [Roll Forward]
Goodwill, beginning balance			2,920
Disposals			0
Goodwill, ending balance	2,920		2,920
Corporate and Other
Goodwill [Roll Forward]
Goodwill, beginning balance			438
Disposals			134
Goodwill, ending balance	$ 304		$ 304

Earnings Per Share (CenterPoint Energy) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Numerator:
Income from continuing operations	$ 282	$ 202	$ 725	$ 923
Less: Preferred stock dividend requirement (Note 18)	26	13	50	37
Income available to common shareholders - basic	256	189	675	886
Income available to common shareholders -diluted	$ 256	$ 189	$ 675	$ 886
Denominator:
Weighted average common shares outstanding - basic (in shares)	631,185	629,509	630,854	629,374
Plus: Incremental shares from assumed conversions:
Weighted average common shares outstanding - diluted (in shares)	633,043	633,068	633,037	632,933
Earnings Per Common Share:
Basic Earnings Per Common Share (in dollars per share)	$ 0.41	$ 0.30	$ 1.07	$ 1.41
Diluted Earnings (Loss) Per Common Share
Diluted Earnings Per Common Share (in dollars per share)	$ 0.40	$ 0.30	$ 1.07	$ 1.40
Restricted stock
Plus: Incremental shares from assumed conversions:
Restricted stock (in shares)	1,858	3,559	2,183	3,559

Derivative Instruments (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
Derivative Instruments (Details) - USD ($) $ in Millions	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Not Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Derivative Assets Fair Value	$ 1		$ 1		$ 12
Derivative Liabilities Fair Value	630		630		578
Not Designated as Hedging Instrument \| CERC
Derivatives, Fair Value [Line Items]
Derivative Assets Fair Value	1		1		9
Derivative Liabilities Fair Value	0		0		0
Energy Related Derivative \| Current Assets: Non-trading derivative assets \| Not Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Derivative Assets Fair Value	1		1		9
Derivative Liabilities Fair Value	0		0		0
Energy Related Derivative \| Current Assets: Non-trading derivative assets \| Not Designated as Hedging Instrument \| CERC
Derivatives, Fair Value [Line Items]
Derivative Assets Fair Value	1		1		7
Derivative Liabilities Fair Value	0		0		0
Energy Related Derivative \| Other Assets: Non-trading derivative assets \| Not Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Derivative Assets Fair Value	0		0		2
Derivative Liabilities Fair Value	0		0		0
Energy Related Derivative \| Other Assets: Non-trading derivative assets \| Not Designated as Hedging Instrument \| CERC
Derivatives, Fair Value [Line Items]
Derivative Assets Fair Value	0		0		2
Derivative Liabilities Fair Value	0		0		0
Interest rate derivatives \| Current Assets: Non-trading derivative assets \| Not Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Derivative Assets Fair Value	0		0		1
Derivative Liabilities Fair Value	0		0		0
Interest rate derivatives \| Economic hedge
Derivatives, Fair Value [Line Items]
Economic hedge	0		0		84
Indexed debt securities derivative \| Gains (Losses) in Other Income (Expense)
Derivatives, Fair Value [Line Items]
Gain (loss) on derivative instruments not designated as hedging instruments	(47)	$ 210	(52)	$ 381
Indexed debt securities derivative \| Current Liabilities \| Not Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Derivative Assets Fair Value	0		0		0
Derivative Liabilities Fair Value	$ 630		$ 630		$ 578

Insider Trading Arrangements	3 Months Ended
Insider Trading Arrangements	Sep. 30, 2023
Trading Arrangements, by Individual
Rule 10b5-1 Arrangement Adopted	false
Non-Rule 10b5-1 Arrangement Adopted	false
Rule 10b5-1 Arrangement Terminated	false
Non-Rule 10b5-1 Arrangement Terminated	false

Cover Page - shares	9 Months Ended
Cover Page - shares	Sep. 30, 2023	Oct. 18, 2023
Entity Information [Line Items]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2023
Document Transition Report	false
Entity File Number	1-31447
Entity Registrant Name	CenterPoint Energy, Inc.
Entity Incorporation, State or Country Code	TX
Entity Tax Identification Number	74-0694415
Entity Address, Address Line One	1111 Louisiana
Entity Address, City or Town	Houston
Entity Address, State or Province	TX
Entity Address, Postal Zip Code	77002
City Area Code	713
Local Phone Number	207-1111
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		631,223,560
Entity Central Index Key	0001130310
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2023
Document Fiscal Period Focus	Q3
Amendment Flag	false
Common Stock, $0.01 Par Value \| New York Stock Exchange
Entity Information [Line Items]
Title of 12(b) Security	Common Stock, $0.01 par value
Trading Symbol	CNP
Security Exchange Name	NYSE
Common Stock, $0.01 Par Value \| Chicago Stock Exchange
Entity Information [Line Items]
Title of 12(b) Security	Common Stock, $0.01 par value
Trading Symbol	CNP
Security Exchange Name	CHX
Houston Electric
Entity Information [Line Items]
Entity File Number	1-3187
Entity Registrant Name	CenterPoint Energy Houston Electric, LLC
Entity Incorporation, State or Country Code	TX
Entity Tax Identification Number	22-3865106
Entity Address, Address Line One	1111 Louisiana
Entity Address, City or Town	Houston
Entity Address, State or Province	TX
Entity Address, Postal Zip Code	77002
City Area Code	713
Local Phone Number	207-1111
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		1,000
Entity Central Index Key	0000048732
Houston Electric \| 6.95% General Mortgage Bonds due 2033 \| New York Stock Exchange
Entity Information [Line Items]
Title of 12(b) Security	6.95% General Mortgage Bonds due 2033
Security Exchange Name	NYSE
No Trading Symbol Flag	true
CERC
Entity Information [Line Items]
Entity File Number	1-13265
Entity Registrant Name	CenterPoint Energy Resources Corp.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	76-0511406
Entity Address, Address Line One	1111 Louisiana
Entity Address, City or Town	Houston
Entity Address, State or Province	TX
Entity Address, Postal Zip Code	77002
City Area Code	713
Local Phone Number	207-1111
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		1,000
Entity Central Index Key	0001042773
CERC \| 6.625% Senior Notes due 2037 \| New York Stock Exchange
Entity Information [Line Items]
Title of 12(b) Security	6.625% Senior Notes due 2037
Security Exchange Name	NYSE
No Trading Symbol Flag	true

Revenue Recognition and Allowance for Credit Losses - Summary of Contract Assets and Liabilities (Details) $ in Millions	9 Months Ended
	Sep. 30, 2023 USD ($)
Accounts Receivable
Opening balance as of December 31, 2022	$ 858
Closing balance as of September 30, 2023	733
Increase (decrease) in accounts receivable	(125)
Other Accrued Unbilled Revenues
Opening balance as of December 31, 2022	764
Closing balance as of September 30, 2023	340
Increase (decrease) in other accrued unbilled revenues	(424)
Contract Assets
Opening balance as of December 31, 2022	4
Closing balance as of September 30, 2023	0
Decrease in contract assets	(4)
Contract Liabilities
Opening balance as of December 31, 2022	45
Closing balance as of September 30, 2023	5
Increase (decrease) in contract liabilities	(40)
Revenue recognized included in the opening contract liability for the period	2
Houston Electric
Accounts Receivable
Opening balance as of December 31, 2022	271
Closing balance as of September 30, 2023	459
Increase (decrease) in accounts receivable	188
Other Accrued Unbilled Revenues
Opening balance as of December 31, 2022	142
Closing balance as of September 30, 2023	182
Increase (decrease) in other accrued unbilled revenues	40
Contract Liabilities
Opening balance as of December 31, 2022	2
Closing balance as of September 30, 2023	5
Increase (decrease) in contract liabilities	3
Revenue recognized included in the opening contract liability for the period	2
CERC
Accounts Receivable
Opening balance as of December 31, 2022	478
Closing balance as of September 30, 2023	230
Increase (decrease) in accounts receivable	(248)
Other Accrued Unbilled Revenues
Opening balance as of December 31, 2022	573
Closing balance as of September 30, 2023	119
Increase (decrease) in other accrued unbilled revenues	$ (454)

Fair Value Measurements (Details) - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022
Carrying amount
Liabilities
Carrying amount or fair value	$ 18,263	$ 16,338
Carrying amount \| Houston Electric
Liabilities
Carrying amount or fair value	7,665	6,353
Carrying amount \| CERC
Liabilities
Carrying amount or fair value	4,243	4,826
Fair value
Liabilities
Carrying amount or fair value	16,283	14,990
Fair value \| Houston Electric
Liabilities
Carrying amount or fair value	6,397	5,504
Fair value \| CERC
Liabilities
Carrying amount or fair value	3,908	4,637
Fair Value, Recurring
Assets
Equity securities	566	510
Investments, including money market funds	31	32
Total assets	598	554
Liabilities
Total liabilities	630	578
Fair Value, Recurring \| Houston Electric
Assets
Investments, including money market funds	14	17
Total assets	14	17
Fair Value, Recurring \| CERC
Assets
Investments, including money market funds	14	14
Total assets	15	23
Fair Value, Recurring \| Interest rate derivatives
Assets
Derivative assets	0	1
Fair Value, Recurring \| Natural gas derivatives
Assets
Derivative assets	1	11
Fair Value, Recurring \| Natural gas derivatives \| CERC
Assets
Derivative assets	1	9
Fair Value, Recurring \| Indexed debt securities derivative
Liabilities
Indexed debt securities derivative	630	578
Level 1 \| Fair Value, Recurring
Assets
Equity securities	566	510
Investments, including money market funds	31	32
Total assets	597	542
Liabilities
Total liabilities	0	0
Level 1 \| Fair Value, Recurring \| Houston Electric
Assets
Investments, including money market funds	14	17
Total assets	14	17
Level 1 \| Fair Value, Recurring \| CERC
Assets
Investments, including money market funds	14	14
Total assets	14	14
Level 1 \| Fair Value, Recurring \| Interest rate derivatives
Assets
Derivative assets	0	0
Level 1 \| Fair Value, Recurring \| Natural gas derivatives
Assets
Derivative assets	0	0
Level 1 \| Fair Value, Recurring \| Natural gas derivatives \| CERC
Assets
Derivative assets	0	0
Level 1 \| Fair Value, Recurring \| Indexed debt securities derivative
Liabilities
Indexed debt securities derivative	0	0
Level 2 \| Fair Value, Recurring
Assets
Equity securities	0	0
Investments, including money market funds	0	0
Total assets	1	12
Liabilities
Total liabilities	630	578
Level 2 \| Fair Value, Recurring \| Houston Electric
Assets
Investments, including money market funds	0	0
Total assets	0	0
Level 2 \| Fair Value, Recurring \| CERC
Assets
Investments, including money market funds	0	0
Total assets	1	9
Level 2 \| Fair Value, Recurring \| Interest rate derivatives
Assets
Derivative assets	0	1
Level 2 \| Fair Value, Recurring \| Natural gas derivatives
Assets
Derivative assets	1	11
Level 2 \| Fair Value, Recurring \| Natural gas derivatives \| CERC
Assets
Derivative assets	1	9
Level 2 \| Fair Value, Recurring \| Indexed debt securities derivative
Liabilities
Indexed debt securities derivative	630	578
Level 3 \| Fair Value, Recurring
Assets
Equity securities	0	0
Investments, including money market funds	0	0
Total assets	0	0
Liabilities
Total liabilities	0	0
Level 3 \| Fair Value, Recurring \| Houston Electric
Assets
Investments, including money market funds	0	0
Total assets	0	0
Level 3 \| Fair Value, Recurring \| CERC
Assets
Investments, including money market funds	0	0
Total assets	0	0
Level 3 \| Fair Value, Recurring \| Interest rate derivatives
Assets
Derivative assets	0	0
Level 3 \| Fair Value, Recurring \| Natural gas derivatives
Assets
Derivative assets	0	0
Level 3 \| Fair Value, Recurring \| Natural gas derivatives \| CERC
Assets
Derivative assets	0	0
Level 3 \| Fair Value, Recurring \| Indexed debt securities derivative
Liabilities
Indexed debt securities derivative	$ 0	$ 0

Fair Value Measurements (Tables)

9 Months Ended

Sep. 30, 2023

Fair Value Disclosures [Abstract]

Schedule of Fair Value, Assets and Liabilities Measured on a Recurring Basis

CenterPoint Energy


	September 30, 2023						December 31, 2022
	Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3		Total
Assets	(in millions)
Equity securities	$	566	$	—	$	—	$	566	$	510	$	—	$	—	$	510
Investments, including money market funds (1)	31		—		—		31		32		—		—		32
Interest rate derivatives	—		—		—		—		—		1		—		1
Natural gas derivatives	—		1		—		1		—		11		—		11



Total assets	$	597	$	1	$	—	$	598	$	542	$	12	$	—	$	554
Liabilities
Indexed debt securities derivative	$	—	$	630	$	—	$	630	$	—	$	578	$	—	$	578





Total liabilities	$	—	$	630	$	—	$	630	$	—	$	578	$	—	$	578

Houston Electric


	September 30, 2023						December 31, 2022
	Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3		Total
Assets	(in millions)
Investments, including money market funds (1)	$	14	$	—	$	—	$	14	$	17	$	—	$	—	$	17

Total assets	$	14	$	—	$	—	$	14	$	17	$	—	$	—	$	17

CERC


	September 30, 2023						December 31, 2022
	Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3		Total
Assets	(in millions)

Investments, including money market funds (1)	$	14	$	—	$	—	$	14	$	14	$	—	$	—	$	14
Natural gas derivatives	—		1		—		1		—		9		—		9
Total assets	$	14	$	1	$	—	$	15	$	14	$	9	$	—	$	23

(1)Amounts are included in Prepaid expenses and other current assets in the Condensed Consolidated Balance Sheets.

Schedule of Estimated Fair Value of Financial Instruments, Debt Instruments


	September 30, 2023						December 31, 2022
	CenterPoint Energy (1)		Houston Electric (1)		CERC		CenterPoint Energy (1)		Houston Electric (1)		CERC
Long-term debt, including current maturities	(in millions)


Carrying amount	$	18,263	$	7,665	$	4,243	$	16,338	$	6,353	$	4,826
Fair value	16,283		6,397		3,908		14,990		5,504		4,637

(1)Includes Securitization Bonds, as applicable.

Regulatory Matters (Tables)

9 Months Ended

Sep. 30, 2023

Regulatory Assets and Liabilities, Other Disclosure [Abstract]

Schedule of Allowed Equity Return Not Recognized

The recoverable allowed equity return not yet recognized by the Registrants is as follows:


	September 30, 2023						December 31, 2022
	CenterPoint Energy (1)		Houston Electric (2)		CERC (3)		CenterPoint Energy (1)		Houston Electric (2)		CERC (3)
	(in millions)
Allowed equity return not recognized	$	205	$	81	$	66	$	188	$	82	$	54

(1)In addition to the amounts described in (2) and (3) below, represents CenterPoint Energy’s allowed equity return on post in-service carrying cost, including investments at SIGECO and securitized qualified costs associated with the completed retirements of SIGECO’s A.B. Brown coal-fired generation facilities.

(2)Represents Houston Electric’s allowed equity return on its true-up balance of stranded costs, other changes and related interest resulting from the formerly integrated electric utilities prior to Texas deregulation to be recovered in rates through 2024 and certain storm restoration, TEEEF and LLTF balances.

(3)CERC’s allowed equity return on post in-service carrying cost associated with certain distribution facilities replacements expenditures in Texas and costs associated with investments in Indiana.

Schedule of Amount Allowed Equity Return Recognized in Period

The table below reflects the amount of allowed equity return recognized by each Registrant in its Condensed Statements of Consolidated Income:


	Three Months Ended September 30,
	2023						2022
	CenterPoint Energy		Houston Electric		CERC		CenterPoint Energy		Houston Electric		CERC
	(in millions)
Allowed equity return recognized	$	14	$	14	$	—	$	14	$	12	$	1

	Nine Months Ended September 30,
	2023						2022
	CenterPoint Energy		Houston Electric		CERC		CenterPoint Energy		Houston Electric		CERC
	(in millions)
Allowed equity return recognized	$	32	$	30	$	1	$	36	$	33	$	2

Equity Securities and Indexed Debt Securities (ZENS) (CenterPoint Energy)

9 Months Ended

Sep. 30, 2023

Investments, Debt and Equity Securities [Abstract]

Equity Securities and Indexed Debt Securities (ZENS) (CenterPoint Energy)

(a) Equity Securities

During the nine months ended September 30, 2022, CenterPoint Energy completed the execution of its previously announced plan to exit the midstream sector by selling the remaining Energy Transfer Common Units and Energy Transfer Series G Preferred Units it held.

Gains and losses on equity securities, net of transaction costs, are recorded in Gain (Loss) on Equity Securities in CenterPoint Energy’s Condensed Statements of Consolidated Income.


	Gains (Losses) on Equity Securities
	Three Months Ended September 30,				Nine Months Ended September 30,
	2023		2022		2023		2022
	(in millions)
AT&T Common	$	(10)	$	(57)	$	(35)	$	(94)
Charter Common	63		(144)		88		(304)
WBD Common	(5)		(5)		3		28
Energy Transfer Common Units	—		—		—		95
Energy Transfer Series G Preferred Units	—		—		—		(9)
Other	1		—		—		—
Total	$	49	$	(206)	$	56	$	(284)

CenterPoint Energy recorded net unrealized gains of $49 million and $56 million for the three and nine months ended September 30, 2023 and net unrealized losses of $206 million and $370 million for the three and nine months ended September 30, 2022 respectively, for equity securities held as of September 30, 2023 and 2022.

CenterPoint Energy and its subsidiaries hold shares of certain securities detailed in the table below, which are classified as trading securities. Shares of AT&T Common, Charter Common and WBD Common are expected to be held to facilitate CenterPoint Energy’s ability to meet its obligation under the ZENS.


	Shares Held		Carrying Value
	September 30, 2023	December 31, 2022	September 30, 2023		December 31, 2022
			(in millions)
AT&T Common	10,212,945	10,212,945	$	153	$	188
Charter Common	872,503	872,503	384		296
WBD Common	2,470,685	2,470,685	27		23


Other			2		3
Total			$	566	$	510

(b) ZENS

In September 1999, CenterPoint Energy issued ZENS having an original principal amount of $1.0 billion of which $828 million remained outstanding as of September 30, 2023. Each ZENS is exchangeable at the holder’s option at any time for an amount of cash equal to 95% of the market value of the reference shares attributable to such note. The number and identity of the reference shares attributable to each ZENS are adjusted for certain corporate events.

CenterPoint Energy’s reference shares for each ZENS consisted of the following:


	September 30, 2023	December 31, 2022
	(in shares)
AT&T Common	0.7185	0.7185
Charter Common	0.061382	0.061382
WBD Common	0.173817	0.173817

CenterPoint Energy pays interest on the ZENS at an annual rate of 2% plus the amount of any quarterly cash dividends paid in respect of the reference shares attributable to the ZENS. The principal amount of the ZENS is subject to increases or decreases to the extent that the annual yield from interest and cash dividends on the reference shares attributable to the ZENS is less than or more than 2.309%. The adjusted principal amount is defined in the ZENS instrument as “contingent principal.” As of September 30, 2023, the ZENS, having an original principal amount of $828 million and a contingent principal amount of $20 million, were outstanding and were exchangeable, at the option of the holders, for cash equal to 95% of the market value of the reference shares attributable to the ZENS.

Equity

9 Months Ended

Sep. 30, 2023

Equity [Abstract]

Equity

Dividends Declared and Paid (CenterPoint Energy)


	Dividends Declared Per Share								Dividends Paid Per Share
	Three Months Ended September 30,				Nine Months Ended September 30,				Three Months Ended September 30,				Nine Months Ended September 30,
	2023		2022		2023		2022		2023		2022		2023		2022
Common Stock	$	0.390	$	0.360	$	0.580	$	0.530	$	0.190	$	0.180	$	0.570	$	0.520
Series A Preferred Stock	30.625		30.625		30.625		30.625		30.625		30.625		61.250		61.250

Series A Preferred Stock Redemption (CenterPoint Energy)

On September 1, 2023, CenterPoint Energy redeemed 800,000 shares of CenterPoint Energy’s Series A Preferred Stock, in whole for cash at a redemption price of $1,000 per share, plus any accumulated and unpaid dividends thereon to, but excluding, the redemption date.

Preferred Stock (CenterPoint Energy)


	Liquidation Preference Per Share		Shares Outstanding as of		Outstanding Value as of
			September 30, 2023	December 31, 2022	September 30, 2023		December 31, 2022
	(in millions, except shares and per share amounts)
Series A Preferred Stock	$	1,000	—	800,000	$	—	$	790


			—	800,000	$	—	$	790

Income Allocated to Preferred Shareholders (CenterPoint Energy)


	Three Months Ended September 30,				Nine Months Ended September 30,
	2023		2022		2023		2022
	(in millions)
Series A Preferred Stock	$	26	$	13	$	50	$	37




Total income allocated to preferred shareholders	$	26	$	13	$	50	$	37

Temporary Equity (CenterPoint Energy)

On the approval and recommendation of the Compensation Committee and approval of the Board (acting solely through its independent directors), CenterPoint Energy entered into a retention incentive agreement with David J. Lesar, then President and Chief Executive Officer of CenterPoint Energy, dated July 20, 2021. Pursuant to the retention incentive agreement, Mr. Lesar received equity-based awards under CenterPoint Energy’s LTIP covering a total of 1 million shares of Common Stock (Total Stock Award) which were granted in multiple annual awards. Mr. Lesar received 400 thousand restricted stock units in July 2021 that vested in December 2022 and 400 thousand restricted stock units and 200 thousand restricted stock units in February 2022 and February 2023, respectively, that will vest in December 2023. For accounting purposes, the 1 million shares under the Total Stock Award, consisting of the equity-based awards described above, were considered granted in July 2021. In the event that death, disability, termination without cause or resignation for good reason, as defined in the retention incentive agreement, had occurred prior to the full Total Stock Award being awarded, CenterPoint Energy would have paid a lump sum cash payment equal to the value of the unawarded equity-based awards, based on the closing trading price of Common Stock on the date of the event’s occurrence. Because the equity-based awards would have been redeemable for cash prior to being awarded upon events that were not probable at the grant date, the equity associated with any unawarded equity-based awards were classified as Temporary Equity as of December 31, 2022 on CenterPoint Energy’s Condensed Consolidated Balance Sheets. As of September 30, 2023, all restricted stock units have been awarded to Mr. Lesar and no amounts are reflected in Temporary Equity on CenterPoint Energy’s Condensed Consolidated Balance Sheets.

Accumulated Other Comprehensive Income (Loss)

Changes in accumulated comprehensive income (loss) are as follows:


	Three Months Ended September 30,
	2023						2022
	CenterPoint Energy		Houston Electric		CERC		CenterPoint Energy		Houston Electric		CERC
	(in millions)
Beginning Balance	$	(32)	$	—	$	15	$	(85)	$	—	$	10
Other comprehensive income (loss) before reclassifications:
Remeasurement of pension and other postretirement plans	—		—		—		(10)		—		—


Amounts reclassified from accumulated other comprehensive income (loss):
Net deferred gain from cash flow hedges	2		—		—		—		—		—
Prior service cost (1)	1		—		—		—		—		—
Actuarial losses (1)	—		—		—		2		—		—
Settlement (2)	—		—		—		1		—		—

Tax benefit (expense)	—		—		—		9		—		—
Net current period other comprehensive income (loss)	3		—		—		2		—		—
Ending Balance	$	(29)	$	—	$	15	$	(83)	$	—	$	10

	Nine Months Ended September 30,
	2023						2022
	CenterPoint Energy		Houston Electric		CERC		CenterPoint Energy		Houston Electric		CERC
	(in millions)
Beginning Balance	$	(31)	$	—	$	16	$	(64)	$	—	$	10
Other comprehensive income (loss) before reclassifications:
Remeasurement of pension and other postretirement plans	—		—		—		(44)		—		—



Amounts reclassified from accumulated other comprehensive income (loss):
Net deferred gain from cash flow hedges	2		—		—		—		—		—
Prior service cost (1)	—		—		(1)		1		—		—
Actuarial losses (1)	—		—		—		4		—		—
Settlement (2)	—		—		—		14		—		—


Tax benefit (expense)	—		—		—		5		—		—
Net current period other comprehensive income (loss)	2		—		(1)		(19)		—		—
Ending Balance	$	(29)	$	—	$	15	$	(83)	$	—	$	10

(1)Amounts are included in the computation of net periodic cost and are reflected in Other income, net in each of the Registrants’ respective Condensed Statements of Consolidated Income.

- Definition

The entire disclosure for equity.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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+ Details

Supplemental Disclosure of Cash Flow Information

9 Months Ended

Sep. 30, 2023

Supplemental Cash Flow Elements [Abstract]

Supplemental Disclosure of Cash Flow Information

The table below provides supplemental disclosure of cash flow information:


	Nine Months Ended September 30,
	2023						2022
	CenterPoint Energy		Houston Electric		CERC		CenterPoint Energy		Houston Electric		CERC
	(in millions)
Cash Payments/Receipts:
Interest, net of capitalized interest	$	521	$	211	$	153	$	376	$	188	$	67
Income tax payments, net	200		12		113		340		113		3
Non-cash transactions:
Accounts payable related to capital expenditures	264		137		122		333		197		145
ROU assets obtained in exchange for lease liabilities (1)	3		1		—		1		—		—

(1) Excludes ROU assets obtained through prepayment of the lease liabilities. See Note 19.

The table below provides a reconciliation of cash, cash equivalents and restricted cash reported in the Condensed Consolidated Balance Sheets to the amount reported in the Condensed Statements of Consolidated Cash Flows:


	September 30, 2023						December 31, 2022
	CenterPoint Energy		Houston Electric		CERC		CenterPoint Energy		Houston Electric		CERC
	(in millions)
Cash and cash equivalents (1)	$	120	$	113	$	1	$	74	$	75	$	—
Restricted cash included in Prepaid expenses and other current assets	18		13		—		17		13		—

Total cash, cash equivalents and restricted cash shown in Condensed Statements of Consolidated Cash Flows	$	138	$	126	$	1	$	91	$	88	$	—

(1)Cash and cash equivalents related to VIEs as of September 30, 2023 and December 31, 2022 included $118 million and $75 million, respectively, at CenterPoint Energy and $113 million and $75 million, respectively, at Houston Electric.

Goodwill and Other Intangibles (CenterPoint Energy and CERC) - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Goodwill [Line Items]
Loss on sale	$ 0	$ 0	$ 12	$ (303)
Disposal Group, Held-for-sale or Disposed of by Sale, Not Discontinued Operations \| Energy Systems Group
Goodwill [Line Items]
Held for sale	$ 134		134
Loss on sale			$ 12

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 350
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+ Details

Equity Securities and Indexed Debt Securities (ZENS) (CenterPoint Energy) - Schedule of Gain (Loss) On Equity Securities (CenterPoint Energy) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Debt and Equity Securities, FV-NI [Line Items]
Gain (loss) on equity securities	$ 49	$ (206)	$ 56	$ (284)
AT&T Common
Debt and Equity Securities, FV-NI [Line Items]
Gain (loss) on equity securities	(10)	(57)	(35)	(94)
Charter Common
Debt and Equity Securities, FV-NI [Line Items]
Gain (loss) on equity securities	63	(144)	88	(304)
WBD Common
Debt and Equity Securities, FV-NI [Line Items]
Gain (loss) on equity securities	(5)	(5)	3	28
Energy Transfer Common Units
Debt and Equity Securities, FV-NI [Line Items]
Gain (loss) on equity securities	0	0	0	95
Energy Transfer Series G Preferred Units
Debt and Equity Securities, FV-NI [Line Items]
Gain (loss) on equity securities	0	0	0	(9)
Other
Debt and Equity Securities, FV-NI [Line Items]
Gain (loss) on equity securities	$ 1	$ 0	$ 0	$ 0

Condensed Statements of Consolidated Changes in Equity (Unaudited) - CERC - USD ($) $ in Millions	Total	Common Stock	Additional Paid-in-Capital	Retained Earnings	Accumulated Other Comprehensive Loss	CERC	CERC Common Stock	CERC Additional Paid-in-Capital	CERC Retained Earnings	CERC Accumulated Other Comprehensive Loss
Balance, beginning of period (in shares) at Dec. 31, 2021		629,000,000					1,000
Balance, beginning of period at Dec. 31, 2021		$ 6	$ 8,529	$ 154	$ (64)		$ 0	$ 4,106	$ 1,017	$ 10
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Non-cash contribution from parent						$ 54		54
Contribution from parent								125
Contribution to parent for sale of Arkansas and Oklahoma Natural Gas businesses						720		(720)
Net income	$ 923			923		656			656
Dividend to parent									(124)
Other comprehensive loss					(19)					0
Balance, end of period (in shares) at Sep. 30, 2022		629,000,000					1,000
Balance, end of period at Sep. 30, 2022	9,989	$ 6	8,557	719	(83)	5,124	$ 0	3,565	1,549	10
Balance, beginning of period (in shares) at Jun. 30, 2022		629,000,000					1,000
Balance, beginning of period at Jun. 30, 2022		$ 6	8,544	768	(85)		$ 0	3,565	1,569	10
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Non-cash contribution from parent						0		0
Contribution from parent								0
Contribution to parent for sale of Arkansas and Oklahoma Natural Gas businesses						0		0
Net income	202			202		(7)			(7)
Dividend to parent									(13)
Other comprehensive loss					2					0
Balance, end of period (in shares) at Sep. 30, 2022		629,000,000					1,000
Balance, end of period at Sep. 30, 2022	$ 9,989	$ 6	8,557	719	(83)	5,124	$ 0	3,565	1,549	10
Balance, beginning of period (in shares) at Dec. 31, 2022	629,535,631	630,000,000					1,000
Balance, beginning of period at Dec. 31, 2022	$ 10,042	$ 6	8,568	709	(31)	5,363	$ 0	3,729	1,618	16
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Non-cash contribution from parent						0		0
Contribution from parent								500
Contribution to parent for sale of Arkansas and Oklahoma Natural Gas businesses						0		0
Net income	$ 725			725		283			283
Dividend to parent									(347)
Other comprehensive loss					2					(1)
Balance, end of period (in shares) at Sep. 30, 2023	631,209,962	631,000,000					1,000
Balance, end of period at Sep. 30, 2023	$ 9,585	$ 6	8,581	1,027	(29)	5,798	$ 0	4,229	1,554	15
Balance, beginning of period (in shares) at Jun. 30, 2023		631,000,000					1,000
Balance, beginning of period at Jun. 30, 2023		$ 6	8,570	1,032	(32)		$ 0	4,229	1,562	15
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Non-cash contribution from parent						0		0
Contribution from parent								0
Contribution to parent for sale of Arkansas and Oklahoma Natural Gas businesses						0		0
Net income	$ 282			282		28			28
Dividend to parent									(36)
Other comprehensive loss					3					0
Balance, end of period (in shares) at Sep. 30, 2023	631,209,962	631,000,000					1,000
Balance, end of period at Sep. 30, 2023	$ 9,585	$ 6	$ 8,581	$ 1,027	$ (29)	$ 5,798	$ 0	$ 4,229	$ 1,554	$ 15

- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 235
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+ Details

Divestitures (CenterPoint Energy and CERC)

9 Months Ended

Sep. 30, 2023

Discontinued Operations and Disposal Groups [Abstract]

Divestitures (CenterPoint Energy and CERC)

Divestiture of Energy Systems Group. On May 21, 2023, CenterPoint Energy, through its subsidiary Vectren Energy Services, entered into an Equity Purchase Agreement to sell all of the outstanding limited liability company interests of Energy Systems Group to ESG Holdings Group, for a purchase price of $157 million, subject to customary adjustments set forth in the Equity Purchase Agreement, including adjustments based on Energy Systems Group’s net working capital at closing, indebtedness, cash and cash equivalents and transaction expenses. The transaction closed on June 30, 2023, and CenterPoint Energy received $154 million in cash, subject to finalization of the purchase price adjustment. Additionally, as of September 30, 2023, CenterPoint Energy had a payable to ESG Holdings Group for working capital and other adjustments set forth in the Equity Purchase Agreement that have not yet been finalized.

In May 2023, certain assets and liabilities of Energy Systems Group met the held for sale criteria. The divestiture of Energy Systems Group reflects CenterPoint Energy’s continued strategic focus on its core utility businesses. The historical annual revenues, net income and total assets of Energy Systems Groups did not have a sufficient effect, quantitatively or qualitatively, on CenterPoint Energy’s financial results to be considered a strategic shift. Therefore, the income and expenses associated with Energy Systems Group were not reflected as discontinued operations on CenterPoint Energy’s Condensed Statements of Consolidated Income. For disposal groups that are classified as held for sale but that do not meet the criteria for discontinued operations reporting, the assets and liabilities of the disposal group are required to be separately presented on the face of the balance sheet only in the initial period in which it is classified as held for sale. Therefore, CenterPoint Energy’s Condensed Consolidated Balance Sheet as of December 31, 2022 was not recast to reflect Energy Systems Group’s assets and liabilities as held for sale. Depreciation and amortization of long-lived assets ceased at the end of the quarter in which the held for sale criteria is met. Additionally, as a result of the completion of the sale of Energy Systems Group in June 2023, there were no assets or liabilities classified as held for sale as of September 30, 2023. For a discussion of guarantees and product warranties related to Energy Systems Group prior to the sale, see Note 13(b).

CenterPoint Energy recognized a loss on sale of approximately $12 million, including $3 million of transaction costs, during the nine months ended September 30, 2023, in connection with the closing of the sale of Energy Systems Group. Additionally, CenterPoint Energy recognized a current tax expense of $33 million during the nine months ended September 30, 2023, as a result of the cash taxes payable upon the closing of the sale.

The pre-tax loss for Energy Systems Group, excluding interest and corporate allocations, included in CenterPoint Energy’s Condensed Statements of Consolidated Income is as follows:


	Three Months Ended September 30,				Nine Months Ended September 30,
	2023		2022		2023		2022
	(in millions)
Loss from Continuing Operations Before Income Taxes	$	—	$	(1)	$	(4)	$	(5)

Divestiture of Arkansas and Oklahoma Natural Gas Businesses. On April 29, 2021, CenterPoint Energy, through its subsidiary CERC Corp., entered into an Asset Purchase Agreement to sell its Arkansas and Oklahoma Natural Gas businesses for $2.15 billion in cash, including recovery of approximately $425 million in natural gas costs, including storm-related

incremental natural gas costs associated with the February 2021 Winter Storm Event, subject to certain adjustments set forth in the Asset Purchase Agreement. The assets included approximately 17,000 miles of main pipeline in Arkansas, Oklahoma and certain portions of Bowie County, Texas serving more than half a million customers. The transaction closed on January 10, 2022.

The sale was considered an asset sale for tax purposes, requiring net deferred tax liabilities to be excluded from held for sale balances. The deferred taxes associated with the businesses were recognized as a deferred income tax benefit by CenterPoint Energy and CERC upon closing of the sale in 2022.

Although the Arkansas and Oklahoma Natural Gas businesses met the held for sale criteria, their disposals did not represent a strategic shift to CenterPoint Energy and CERC, as both retained significant operations in, and continued to invest in, their natural gas businesses. Therefore, the income and expenses associated with the disposed businesses were not reflected as discontinued operations on CenterPoint Energy’s and CERC’s Condensed Statements of Consolidated Income, as applicable. Since the depreciation on the Arkansas and Oklahoma Natural Gas assets continued to be reflected in revenues through customer rates until the closing of the transaction and will be reflected in the carryover basis of the rate-regulated assets, CenterPoint Energy and CERC continued to record depreciation on those assets through the closing of the transaction. The Registrants record assets and liabilities held for sale at the lower of their carrying value or their estimated fair value less cost to sell.

CenterPoint Energy and CERC recognized gains of $303 million and $557 million, respectively, net of transaction costs of $59 million, in connection with the closing of the disposition of the Arkansas and Oklahoma Natural Gas businesses during the year ended December 31, 2022. CenterPoint Energy and CERC collected a receivable of $15 million in May 2022 for full and final settlement of the working capital adjustment under the Asset Purchase Agreement.

The pre-tax income for the Arkansas and Oklahoma Natural Gas businesses, excluding interest and corporate allocations, included in CenterPoint Energy’s and CERC’s Condensed Statements of Consolidated Income is as follows:


	Three Months Ended September 30, 2022		Nine Months Ended September 30, 2022 (1)
	(in millions)
Income from Continuing Operations Before Income Taxes	$	—	$	9

(1)Reflects January 1, 2022 to January 9, 2022 results only due to the sale of the Arkansas and Oklahoma Natural Gas businesses.

Effective on the date of the closing of the disposition of the Arkansas and Oklahoma Natural Gas businesses, a subsidiary of CenterPoint Energy entered into the Transition Services Agreement, whereby that subsidiary agreed to provide certain transition services such as accounting, customer operations, procurement, and technology functions for a term of up to twelve months. In November 2022, a significant majority of all services under the Transition Services Agreement were terminated, and on January 10, 2023, all remaining services were terminated.

CenterPoint Energy’s charges to Southern Col Midco for reimbursement of transition services were $-0- and less than $1 million during the three and nine months ended September 30, 2023 and were $10 million and $29 million during the three and nine months ended September 30, 2022. Actual transitional services costs incurred are recorded net of amounts charged to Southern Col Midco. CenterPoint Energy had accounts receivable from Southern Col Midco of $-0- as of September 30, 2023 and $1 million as of December 31, 2022, for transition services.

Background and Basis of Presentation (Details)	Sep. 30, 2023 registrant
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Number of registrants	3

Equity Securities and Indexed Debt Securities (ZENS) (CenterPoint Energy) - Schedule of Reference Shares (Details) - shares	Sep. 30, 2023	Dec. 31, 2022
AT&T Common \| Subordinated Debt ZENS
Debt and Equity Securities, FV-NI [Line Items]
Number of shares referenced in exchangeable subordinated note (in shares)	0.7185	0.7185
Charter Common \| Subordinated Debt ZENS
Debt and Equity Securities, FV-NI [Line Items]
Number of shares referenced in exchangeable subordinated note (in shares)	0.061382	0.061382
WBD Common \| Subordinated Debt ZENS
Debt and Equity Securities, FV-NI [Line Items]
Number of shares referenced in exchangeable subordinated note (in shares)	0.173817	0.173817

Condensed Statements of Consolidated Changes in Equity (Unaudited) - USD ($) $ in Millions	Total	Cumulative Preferred Stock	Common Stock	Additional Paid-in-Capital	Retained Earnings	Accumulated Other Comprehensive Loss	Series A Preferred Stock	Series A Preferred Stock Cumulative Preferred Stock
Balance, beginning of period (in shares) at Dec. 31, 2021		1,000,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Redemption of Series A Preferred Stock (in shares)								0
Redemption of Series A Preferred Stock								$ 0
Balance, beginning of period at Dec. 31, 2021		$ 790	$ 6	$ 8,529	$ 154	$ (64)
Balance, beginning of period (in shares) at Dec. 31, 2021			629,000,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuances related to benefit and investment plans (in shares)			0
Issuances related to benefit and investment plans			$ 0	28
Net income	$ 923				923
Common Stock dividends declared (see Note 18)					(334)
Preferred Stock dividends declared (see Note 18)					(24)
Other comprehensive loss						(19)
Balance, end of period (in shares) at Sep. 30, 2022		1,000,000
Balance, end of period at Sep. 30, 2022	9,989	$ 790	$ 6	8,557	719	(83)
Balance, end of period (in shares) at Sep. 30, 2022			629,000,000
Balance, beginning of period (in shares) at Jun. 30, 2022		1,000,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Redemption of Series A Preferred Stock (in shares)								0
Redemption of Series A Preferred Stock								$ 0
Balance, beginning of period at Jun. 30, 2022		$ 790	$ 6	8,544	768	(85)
Balance, beginning of period (in shares) at Jun. 30, 2022			629,000,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuances related to benefit and investment plans (in shares)			0
Issuances related to benefit and investment plans			$ 0	13
Net income	202				202
Common Stock dividends declared (see Note 18)					(227)
Preferred Stock dividends declared (see Note 18)					(24)
Other comprehensive loss						2
Balance, end of period (in shares) at Sep. 30, 2022		1,000,000
Balance, end of period at Sep. 30, 2022	$ 9,989	$ 790	$ 6	8,557	719	(83)
Balance, end of period (in shares) at Sep. 30, 2022			629,000,000
Balance, beginning of period (in shares) at Dec. 31, 2022	800,000	1,000,000					800,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Redemption of Series A Preferred Stock (in shares)								(1,000,000)
Redemption of Series A Preferred Stock								$ (790)
Balance, beginning of period at Dec. 31, 2022	$ 10,042	$ 790	$ 6	8,568	709	(31)
Balance, beginning of period (in shares) at Dec. 31, 2022	629,535,631		630,000,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuances related to benefit and investment plans (in shares)			1,000,000
Issuances related to benefit and investment plans			$ 0	13
Net income	$ 725				725
Common Stock dividends declared (see Note 18)					(366)
Preferred Stock dividends declared (see Note 18)					(41)
Other comprehensive loss						2
Balance, end of period (in shares) at Sep. 30, 2023	0	0					0
Balance, end of period at Sep. 30, 2023	$ 9,585	$ 0	$ 6	8,581	1,027	(29)
Balance, end of period (in shares) at Sep. 30, 2023	631,209,962		631,000,000
Balance, beginning of period (in shares) at Jun. 30, 2023		1,000,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Redemption of Series A Preferred Stock (in shares)								(1,000,000)
Redemption of Series A Preferred Stock								$ (790)
Balance, beginning of period at Jun. 30, 2023		$ 790	$ 6	8,570	1,032	(32)
Balance, beginning of period (in shares) at Jun. 30, 2023			631,000,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuances related to benefit and investment plans (in shares)			0
Issuances related to benefit and investment plans			$ 0	11
Net income	$ 282				282
Common Stock dividends declared (see Note 18)					(246)
Preferred Stock dividends declared (see Note 18)					(41)
Other comprehensive loss						3
Balance, end of period (in shares) at Sep. 30, 2023	0	0					0
Balance, end of period at Sep. 30, 2023	$ 9,585	$ 0	$ 6	$ 8,581	$ 1,027	$ (29)
Balance, end of period (in shares) at Sep. 30, 2023	631,209,962		631,000,000

Goodwill and Other Intangibles (CenterPoint Energy and CERC) (Tables)

9 Months Ended

Sep. 30, 2023

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill

CenterPoint Energy’s goodwill by reportable segment is as follows:


	December 31, 2022		Disposals			September 30, 2023
	(in millions)
Electric (1)	$	936	$	—		$	936
Natural Gas	2,920		—			2,920
Corporate and Other	438		134		(2)	304

Total	$	4,294	$	134		$	4,160

(1)Amount presented is net of the accumulated goodwill impairment charge of $185 million recorded in 2020.

(2)Represents goodwill attributable to the sale of Energy Systems Group. For further information, see Note 3.

CERC’s goodwill as of both September 30, 2023 and December 31, 2022 is as follows:



	(in millions)
Goodwill	$	1,583

Schedule of Finite-Lived Intangible Assets

The tables below present information on CenterPoint Energy’s intangible assets, excluding goodwill, recorded in Other non-current assets on CenterPoint Energy’s Condensed Consolidated Balance Sheets and the related amortization expense included in Depreciation and amortization on CenterPoint Energy’s Condensed Statements of Consolidated Income. The intangible assets and associated amortization expense are primarily related to Energy Systems Group prior to the completion of the sale in June 2023 as indicated below. See Note 3 for further information.


	September 30, 2023						December 31, 2022
	Gross Carrying Amount		Accumulated Amortization		Net Balance		Gross Carrying Amount		Accumulated Amortization		Net Balance
	(in millions)
Customer relationships (1)	$	—	$	—	$	—	$	33	$	(16)	$	17

Trade names (1)	—		—		—		16		(6)		10

Operation and maintenance agreements (1) (2)	—		—		—		12		(2)		10
Other	2		(1)		1		2		(1)		1
Total	$	2	$	(1)	$	1	$	63	$	(25)	$	38

(1)Related to Energy Systems Group prior to the completion of the sale in June 2023. Amortization ceased at June 30, 2023, the end of the quarter in which the held for sale criteria was met. See Note 3 for further information.

(2)Amortization expense related to the operation and maintenance agreements is included in Non-utility cost of revenues, including natural gas on CenterPoint Energy’s Condensed Statements of Consolidated Income. Amortization ceased at June 30, 2023, the end of the quarter in which the held for sale criteria was met. See Note 3 for further information.

Schedule of Finite-lived Intangible Assets Amortization Expense


	Three Months Ended September 30,				Nine Months Ended September 30,
	2023		2022		2023		2022
	(in millions)
Amortization expense of intangible assets recorded in Depreciation and amortization	$	—	$	1	$	3	$	4

- Definition

Tabular disclosure of goodwill by reportable segment and in total which includes a rollforward schedule.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 350
-SubTopic 20
-Name Accounting Standards Codification
-Section 55
-Paragraph 24
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482548/350-20-55-24

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 350
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482573/350-20-50-1

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 350
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (h)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482573/350-20-50-1

Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 350
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482573/350-20-50-1

Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 350
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482573/350-20-50-1

Reference 6: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 350
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482573/350-20-50-1

Reference 7: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 350
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482573/350-20-50-1

Reference 8: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 350
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (e)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482573/350-20-50-1

Reference 9: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 350
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (f)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482573/350-20-50-1

Reference 10: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 350
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (g)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482573/350-20-50-1

Reference 11: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 350
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1A
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482573/350-20-50-1A

Reference 12: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 350
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482573/350-20-50-2

+ Details

Short-term Borrowings and Long-term Debt - Schedule of Utilization of Credit Facilities (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2023	Dec. 31, 2022
Loans
Debt Instrument [Line Items]
Long-term line of credit	$ 0	$ 0
Loans \| CenterPoint Energy
Debt Instrument [Line Items]
Long-term line of credit	0	0
Loans \| SIGECO
Debt Instrument [Line Items]
Long-term line of credit	0	0
Loans \| Houston Electric
Debt Instrument [Line Items]
Long-term line of credit	0	0
Loans \| CERC
Debt Instrument [Line Items]
Long-term line of credit	0	0
Letters of Credit
Debt Instrument [Line Items]
Long-term line of credit	9	11
Letters of Credit \| CenterPoint Energy
Debt Instrument [Line Items]
Long-term line of credit	8	11
Letters of Credit \| SIGECO
Debt Instrument [Line Items]
Long-term line of credit	0	0
Letters of Credit \| Houston Electric
Debt Instrument [Line Items]
Long-term line of credit	0	0
Letters of Credit \| CERC
Debt Instrument [Line Items]
Long-term line of credit	1	0
Commercial Paper
Debt Instrument [Line Items]
Long-term line of credit	1,079	2,575
Commercial Paper \| CenterPoint Energy
Debt Instrument [Line Items]
Long-term line of credit	$ 1,079	$ 1,770
Weighted Average Interest Rate	5.50%	4.71%
Number of days until commercial paper maturity (in days)	60 days
Commercial Paper \| SIGECO
Debt Instrument [Line Items]
Long-term line of credit	$ 0	$ 0
Weighted Average Interest Rate	0.00%	0.00%
Commercial Paper \| Houston Electric
Debt Instrument [Line Items]
Long-term line of credit	$ 0	$ 0
Weighted Average Interest Rate	0.00%	0.00%
Commercial Paper \| CERC
Debt Instrument [Line Items]
Long-term line of credit	$ 0	$ 805
Weighted Average Interest Rate	0.00%	4.67%

Short-term Borrowings and Long-term Debt

9 Months Ended

Sep. 30, 2023

Debt Disclosure [Abstract]

Short-term Borrowings and Long-term Debt

Short-term Borrowings and Long-term Debt Inventory Financing. CenterPoint Energy’s and CERC’s Natural Gas businesses have third-party AMAs associated with their utility distribution service in Indiana, Louisiana, Minnesota, Mississippi and Texas. The AMAs have varying terms, the longest of which expires in 2027. Pursuant to the provisions of the agreements, CenterPoint Energy’s and CERC’s Natural Gas either sells natural gas to the asset manager and agrees to repurchase an equivalent amount of natural gas throughout the year at the same cost, or simply purchases its full natural gas requirements at each delivery point from the asset manager. Certain of these transactions are accounted for as an inventory financing. CenterPoint Energy and CERC had $4 million and $11 million outstanding obligations related to the AMAs as of September 30, 2023 and December 31, 2022, respectively, recorded in Short-term borrowings on CenterPoint Energy’s and CERC’s Condensed Consolidated Balance Sheets.

Debt Transactions. During the nine months ended September 30, 2023, the following debt instruments were issued or incurred:


Registrant	Issuance Date	Debt Instrument	Aggregate Principal Amount		Interest Rate	Maturity Date
	(in millions)



Houston Electric	March 2023	General Mortgage Bonds (1)	$	600	4.95%	2033
Houston Electric	March 2023	General Mortgage Bonds (1)	300		5.30%	2053
Houston Electric	September 2023	General Mortgage Bonds (13)	500		5.20%	2028
		Total Houston Electric	1,400
CERC	February 2023	Term Loan (2)	500		SOFR (3) + 0.85%	2024
CERC	February 2023	Senior Notes (4)	600		5.25%	2028
CERC	February 2023	Senior Notes (4)	600		5.40%	2033
CERC	May 2023	Senior Notes (5)	300		5.25%	2028
		Total CERC	2,000
CenterPoint Energy (6)	March 2023	First Mortgage Bonds (7)	100		4.98%	2028
CenterPoint Energy (6)	March 2023	First Mortgage Bonds (7)	80		5.04%	2033
CenterPoint Energy	March 2023	Term Loan (8)	250		SOFR (3) + 1.50%	2023
CenterPoint Energy (9)	June 2023	Securitization Bonds (10)	341		5.026% - 5.172%	2038-2043
CenterPoint Energy	August 2023	Convertible Notes (11)	1,000		4.25%	2026
CenterPoint Energy	August 2023	Senior Notes (12)	400		5.25%	2026
		Total CenterPoint Energy	$	5,571

(1)Total proceeds from Houston Electric’s March 2023 issuances of general mortgage bonds, net of transaction expenses and fees, were approximately $890 million. Approximately $593 million of such proceeds were used for general limited liability company purposes, including capital expenditures, working capital and the repayment of all or a portion of Houston Electric’s borrowings under the CenterPoint Energy money pool, and approximately $296 million of such proceeds will be disbursed or allocated to finance or refinance, in part or in full, new or existing projects that meet stated criteria.

(2)Total proceeds, net of transaction expenses and fees, of approximately $500 million were used for general corporate purposes, including the repayment of CERC’s outstanding commercial paper balances.

(3)As defined in the applicable term loan agreement, which includes an adjustment of 0.10% per annum.

(4)Total proceeds from CERC’s February 2023 issuances of senior notes, net of transaction expenses and fees, of approximately $1.2 billion were used for general corporate purposes, including the repayment of (i) all or a portion of CERC’s outstanding 0.700% senior notes due 2023, (ii) all or a portion of CERC’s outstanding floating rate senior notes due 2023 and (iii) a portion of CERC’s outstanding commercial paper balances.

(5)Total proceeds, net of issuance premiums, transaction expenses and fees, of approximately $308 million, which includes approximately $3 million of accrued interest, were used for general corporate purposes, including repayment of all or a portion of CERC’s outstanding $500 million term loan due February 2024.

(6)Issued by SIGECO.

(7)Total proceeds from SIGECO’s March 2023 issuances of first mortgage bonds, net of transaction expenses and fees, of approximately $179 million were used for general corporate purposes, including repaying short-term debt and refunding long-term debt at maturity or otherwise.

(8)Total proceeds, net of transaction expenses and fees, of approximately $250 million were used for general corporate purposes, including the repayment of CenterPoint Energy’s outstanding commercial paper balances. The full outstanding amount of the term loan, including accrued and unpaid interest, was repaid in March 2023 and, following the repayment, the term loan agreement was terminated.

(9)Issued by the SIGECO Securitization Subsidiary. Scheduled final payment dates are November 15, 2036 and May 15, 2041. The SIGECO Securitization Bonds will be repaid over time through a securitization charge imposed on retail electric customers in SIGECO’s service territory. See Notes 1 and 6 for further details.

(10)Total proceeds from the SIGECO Securitization Subsidiary’s June 2023 issuance of SIGECO Securitization Bonds, net of transaction expenses and fees, of approximately $337 million were used to pay SIGECO the purchase price of the securitization property. SIGECO used the net proceeds from the sale of the securitization property (after payment of upfront financing costs) to reimburse or pay for qualified costs approved by the IURC related to the completed retirement of its A.B. Brown 1 and 2 coal-powered generation units.

(11)Total proceeds, net of discounts, transaction fees and expenses, of $985 million were used for general corporate purposes, including the redemption of CenterPoint Energy’s Series A Preferred Stock on September 1, 2023, and the repayment of a portion of CenterPoint Energy’s outstanding commercial paper. See additional information below.

(12)Total proceeds, net of discounts, transaction fees and expenses, of $397 million were used for general corporate purposes, including the repayment of a portion of CenterPoint Energy’s outstanding commercial paper.

(13)Total proceeds from Houston Electric’s September 2023 issuances of general mortgage bonds, net of transaction expenses and fees, of approximately $496 million were used for general limited liability company purposes, including capital expenditures, working capital and the repayment of all of Houston Electric’s borrowings under the CenterPoint Energy money pool.

SIGECO Debt Remarketing. In April 2023, SIGECO executed a remarketing agreement to remarket five series of tax-exempt debt issued by the Indiana Finance Authority, and secured by SIGECO first mortgage bonds, of approximately $148 million, comprised of: (i) $107 million aggregate principal amount of Environmental Improvement Refunding Revenue Bonds, Series 2013, originally issued by the Indiana Finance Authority on April 26, 2013, and (ii) $41 million aggregate principal amount of Environmental Improvement Refunding Revenue Bonds, Series 2014, originally issued by the Indiana Finance Authority on September 24, 2014, which closed on May 1, 2023.

In July 2023, SIGECO executed a remarketing agreement to remarket two series of tax-exempt debt issued by the City of Mount Vernon, Indiana and Warrick County, Indiana, and secured by SIGECO first mortgage bonds, of approximately $38 million, comprised of: (i) $23 million aggregate principal amount of Environmental Improvement Revenue Bonds, Series 2015 issued by the City of Mount Vernon and (ii) $15 million aggregate principal amount of Environmental Improvement Revenue Bonds, Series 2015 issued by Warrick County, which closed on September 1, 2023. Effective September 1, 2023, the bonds of each series bear interest at a fixed rate of 4.250% per annum to the earlier of (i) its redemption date or (ii) September 1, 2028, at which time the bonds are subject to mandatory tender.

Convertible Senior Notes. Interest on the Convertible Notes described in the table above is payable semiannually in arrears on February 15 and August 15 of each year, beginning on February 15, 2024. The Convertible Notes will mature on August 15, 2026, unless earlier converted or repurchased by CenterPoint Energy in accordance with their terms.

Prior to the close of business on the business day immediately preceding May 15, 2026, the Convertible Notes are convertible only under certain conditions. On or after May 15, 2026 until the close of business on the second scheduled trading day immediately preceding the maturity date, holders of the Convertible Notes may convert all or any portion of their Convertible Notes at any time at the conversion rate then in effect, irrespective of the conditions. CenterPoint Energy may not redeem the Convertible Notes prior to the maturity date and no sinking fund is provided for the Convertible Notes.

Upon conversion of the Convertible Notes, CenterPoint Energy will pay cash up to the aggregate principal amount of the Convertible Notes to be converted and pay or deliver, as the case may be, cash, shares of Common Stock, or a combination of cash and shares of Common Stock, at CenterPoint Energy’s election, in respect of the remainder, if any, of CenterPoint Energy’s conversion obligation in excess of the aggregate principal amount of the Convertible Notes being converted. The conversion rate for the Convertible Notes is initially 27.1278 shares of Common Stock per $1,000 principal amount of Convertible Notes (equivalent to an initial conversion price of approximately $36.86 per share of Common Stock). The initial conversion price of the Convertible Notes represents a premium of approximately 25.0% over the last reported sale price of the Common Stock on the New York Stock Exchange on August 1, 2023. Initially, a maximum of 33,909,700 shares of Common Stock may be issued upon conversion of the Convertible Notes based on the initial maximum conversion rate of 33.9097 shares of Common Stock per $1,000 principal amount of Convertible Notes. The conversion rate will be subject to adjustment in some events (as described in the Convertible Notes Indenture) but will not be adjusted for any accrued and unpaid interest.

In addition, following certain corporate events that occur prior to the maturity date of the Convertible Notes, CenterPoint Energy will, in certain circumstances, increase the conversion rate for a holder of Convertible Notes who elects to convert its Convertible Notes in connection with such a corporate event. If CenterPoint Energy undergoes a fundamental change (as described in the Convertible Notes Indenture) (other than an exempted fundamental change, as described in the Convertible Notes Indenture), holders of the Convertible Notes may require CenterPoint Energy to repurchase for cash all or any portion of their Convertible Notes at a fundamental change repurchase price equal to 100% of the principal amount of the Convertible Notes to be repurchased, plus accrued and unpaid interest to, but excluding, the fundamental change repurchase date.

The Convertible Notes are senior unsecured obligations of CenterPoint Energy and rank senior in right of payment to any of CenterPoint Energy’s indebtedness that is expressly subordinated in right of payment to the Convertible Notes; equal in right of payment to any of CenterPoint Energy’s unsecured indebtedness that is not so subordinated; effectively junior in right of payment to any of CenterPoint Energy’s secured indebtedness it may incur in the future to the extent of the value of the assets securing such future secured indebtedness; and structurally junior to all indebtedness and other liabilities (including trade payables but excluding intercompany obligations and liabilities of a type not required to be reflected on a balance sheet of such subsidiaries in accordance with generally accepted accounting principles) of CenterPoint Energy’s subsidiaries.

SIGECO First Mortgage Bonds. On October 13, 2023, SIGECO issued a total of $470 million aggregate principal amount of first mortgage bonds in three tranches: (i) $180 million first mortgage bonds bearing interest at 5.75% due 2029; (ii) $105 million first mortgage bonds bearing interest at 5.91% due 2030; and (iii) $185 million first mortgage bonds bearing

interest at 6.00% due 2034. The net proceeds of $467 million will be used for general corporate purposes, including repaying short-term debt and refunding long-term debt at maturity or otherwise.

Debt Repayments and Redemptions. During the nine months ended September 30, 2023, the following debt instruments were repaid at maturity or redeemed prior to maturity with proceeds received from the Texas securitization discussed further in Note 6 or through the issuance of new debt. The table does not include Bond Company payments for which there is a dedicated revenue stream,

Registrant

Repayment/Redemption Date

Debt Instrument

Aggregate Principal Amount

Interest Rate

Maturity Date

(in millions)

CERC

March 2023

Term Loan (3)

500

SOFR (2) + 0.70%

2023

CERC

March 2023

Senior Notes

700

0.70%

2023

CERC

March 2023

Floating Rate Senior Notes

575

Three-month LIBOR plus 0.5%

2023

CERC

May 2023

Term Loan (4)

500

SOFR (2) + 0.85%

2024

Total CERC

2,275

CenterPoint Energy (1)

January 2023

First Mortgage Bonds

4.00%

2044

CenterPoint Energy

March 2023

Term Loan (3)

250

SOFR (2) + 1.50%

2023

Total CenterPoint Energy

2,536

(1) On December 16, 2022, SIGECO provided notice of redemption and on January 17, 2023, SIGECO redeemed $11 million aggregate principal amount of SIGECO’s outstanding first mortgage bonds due 2044 at a redemption price equal to 100% of the principal amount of the first mortgage bonds to be redeemed plus accrued and unpaid interest thereon, if any, to, but excluding, the redemption date.

(2) As defined in the applicable term loan agreement, which includes an adjustment of 0.10% per annum.

(3) The full outstanding amount of the term loan, including accrued and unpaid interest, was repaid in March 2023 and, following the repayment, the term loan agreement was terminated.

(4) The full outstanding amount of the term loan, including accrued and unpaid interest, was repaid in May 2023 and, following the repayment, the term loan agreement was terminated.

Credit Facilities. The Registrants had the following revolving credit facilities as of September 30, 2023:


Execution Date	Registrant	Size of Facility		Draw Rate of SOFR plus (1)	Financial Covenant Limit on Debt for Borrowed Money to Capital Ratio		Debt for Borrowed Money to Capital Ratio as of September 30, 2023 (2)	Termination Date
		(in millions)
December 6, 2022	CenterPoint Energy	$	2,400	1.500%	65.0%	(3)	59.2%	December 6, 2027
December 6, 2022	CenterPoint Energy (4)	250		1.125%	65.0%		43.8%	December 6, 2027

December 6, 2022	Houston Electric	300		1.250%	67.5%	(3)	52.4%	December 6, 2027
December 6, 2022	CERC	1,050		1.125%	65.0%		38.2%	December 6, 2027
	Total	$	4,000

(1)Based on current credit ratings.

(2)As defined in the revolving credit facility agreements, excluding Securitization Bonds.

(3)For CenterPoint Energy and Houston Electric, the financial covenant limit will temporarily increase to 70% if Houston Electric experiences damage from a natural disaster in its service territory and CenterPoint Energy certifies to the administrative agent that Houston Electric has incurred system restoration costs reasonably likely to exceed $100 million in a consecutive 12-month period, all or part of which Houston Electric intends to seek to recover through securitization financing. Such temporary increase in the financial covenant would be in effect from the date CenterPoint Energy delivers its certification until the earliest to occur of (i) the completion of the securitization financing, (ii) the first anniversary of CenterPoint Energy’s certification or (iii) the revocation of such certification.

(4)This credit facility was issued by SIGECO.

The Registrants, including the subsidiaries of CenterPoint Energy discussed above, were in compliance with all financial debt covenants as of September 30, 2023.

The table below reflects the utilization of the Registrants’ respective revolving credit facilities:


	September 30, 2023								December 31, 2022
Registrant	Loans		Letters of Credit		Commercial Paper (2)		Weighted Average Interest Rate		Loans		Letters of Credit		Commercial Paper (2)		Weighted Average Interest Rate
	(in millions, except weighted average interest rate)
CenterPoint Energy	$	—	$	8	$	1,079	5.50	%	$	—	$	11	$	1,770	4.71	%
CenterPoint Energy (1)	—		—		—		—	%	—		—		—		—	%
Houston Electric	—		—		—		—	%	—		—		—		—	%
CERC	—		1		—		—	%	—		—		805		4.67	%
Total	$	—	$	9	$	1,079			$	—	$	11	$	2,575

(1)This credit facility was issued by SIGECO.

(2)Outstanding commercial paper generally has maturities of 60 days or less and each Registrants’ commercial paper program is backstopped by such Registrants’ long-term credit facilities. Neither Houston Electric nor SIGECO has a commercial paper program.

Liens. As of September 30, 2023, Houston Electric’s assets were subject to liens securing approximately $7.6 billion of general mortgage bonds outstanding under the General Mortgage, including approximately $68 million held in trust to secure pollution control bonds that mature in 2028 for which CenterPoint Energy is obligated. The general mortgage bonds that are held in trust to secure pollution control bonds are not reflected in Houston Electric’s consolidated financial statements because of the contingent nature of the obligations. Houston Electric may issue additional general mortgage bonds on the basis of retired bonds, 70% of property additions or cash deposited with the trustee. Houston Electric could issue approximately $4.5 billion of additional general mortgage bonds on the basis of retired bonds and 70% of property additions as of September 30, 2023. No first mortgage bonds are outstanding under the M&DOT, and Houston Electric is contractually obligated to not issue any additional first mortgage bonds under the M&DOT and is undertaking actions to release the lien of the M&DOT and terminate the M&DOT.

As of September 30, 2023, SIGECO had approximately $457 million aggregate principal amount of first mortgage bonds outstanding. Generally, all of SIGECO’s real and tangible property is subject to the lien of SIGECO’s mortgage indenture which was amended and restated effective as of January 1, 2023. As of September 30, 2023, SIGECO was permitted to issue additional bonds under its mortgage indenture up to 70% of then currently unfunded property additions and approximately $1.4 billion of additional first mortgage bonds could be issued on this basis. On October 13, 2023, SIGECO issued a total of $470 million aggregate principal amount of first mortgage bonds in three tranches as discussed above.

Other. As of September 30, 2023, certain financial institutions agreed to issue, from time to time, up to $5 million of letters of credit on behalf of Vectren and certain of its subsidiaries in exchange for customary fees. As of September 30, 2023, such financial institutions had issued less than $1 million of letters of credit on behalf of Vectren and certain of its subsidiaries.

- Definition

The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1B
-Subparagraph (h)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481139/470-20-50-1B

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(c))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480678/235-10-S99-1

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 470
-Name Accounting Standards Codification
-Publisher FASB
-URI https://asc.fasb.org//470/tableOfContent

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1B
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481139/470-20-50-1B

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1B
-Subparagraph (g)
-Publisher FASB
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Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
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-Subparagraph (i)
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Reference 7: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
-Section 50
-Paragraph 1C
-Subparagraph (a)
-Publisher FASB
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Reference 8: http://www.xbrl.org/2003/role/disclosureRef
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-Paragraph 1C
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Reference 9: http://www.xbrl.org/2003/role/disclosureRef
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-SubTopic 20
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-Paragraph 1C
-Subparagraph (c)
-Publisher FASB
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Reference 10: http://www.xbrl.org/2003/role/disclosureRef
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-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1E
-Subparagraph (b)
-Publisher FASB
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Reference 11: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
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-Paragraph 1I
-Subparagraph (a)
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Reference 12: http://www.xbrl.org/2003/role/disclosureRef
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Reference 13: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
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-Name Accounting Standards Codification
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-Paragraph 1I
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481139/470-20-50-1I

+ Details

Related Party Transactions (Houston Electric and CERC)

9 Months Ended

Sep. 30, 2023

Houston Electric and CERC participate in CenterPoint Energy’s money pool through which they can borrow or invest on a short-term basis. Funding needs are aggregated and external borrowing or investing is based on the net cash position. The net funding requirements of the CenterPoint Energy money pool are expected to be met with borrowings under CenterPoint Energy’s revolving credit facility or the sale of CenterPoint Energy’s commercial paper.

The table below summarizes CenterPoint Energy money pool activity:


	September 30, 2023						December 31, 2022
	Houston Electric			CERC			Houston Electric			CERC
	(in millions, except interest rates)
Money pool investments (borrowings) (1)	$	400		$	86		$	(642)		$	—
Weighted average interest rate	5.56		%	5.56		%	4.75		%	4.75		%

(1)Included in Accounts and notes receivable (payable)–affiliated companies on Houston Electric’s and CERC’s respective Condensed Consolidated Balance Sheets.

CenterPoint Energy provides some corporate services to Houston Electric and CERC. The costs of services have been charged directly to Houston Electric and CERC using methods that management believes are reasonable. These methods include usage rates, dedicated asset assignment and proportionate corporate formulas based on operating expenses, assets, gross margin, employees and a composite of assets, gross margin and employees. Houston Electric provides certain services to CERC. These services are billed at actual cost, either directly or as an allocation and include fleet services, shop services, geographic services, surveying and right-of-way services, radio communications, data circuit management and field operations. Additionally, CERC provides certain services to Houston Electric. These services are billed at actual cost, either directly or as an allocation and include line locating and other miscellaneous services. These charges are not necessarily indicative of what would have been incurred had Houston Electric and CERC not been affiliates.

Amounts charged for these services were as follows and are included primarily in operation and maintenance expenses:


	Three Months Ended September 30,								Nine Months Ended September 30,
	2023				2022				2023				2022
	Houston Electric		CERC		Houston Electric		CERC		Houston Electric		CERC		Houston Electric		CERC
	(in millions)
Corporate service charges	$	40	$	56	$	38	$	54	$	115	$	162	$	114	$	163
Net affiliate service charges (billings)	(1)		1		3		(3)		(7)		7		(12)		12

The table below presents transactions among Houston Electric, CERC and their parent, CenterPoint Energy.


	Three Months Ended September 30,								Nine Months Ended September 30,
	2023				2022				2023				2022
	Houston Electric		CERC		Houston Electric		CERC		Houston Electric		CERC		Houston Electric		CERC
	(in millions)
Cash dividends paid to parent	$	79	$	36	$	74	$	13	$	239	$	347	$	141	$	124
Cash dividend paid to parent related to the sale of the Arkansas and Oklahoma Natural Gas businesses	—		—		—		—		—		—		—		720
Cash contribution from parent	235		—		—		—		885		500		1,143		125
Net assets acquired in the Restructuring	—		—		—		—		—		—		—		2,345
Non-cash capital contribution from parent in payment for property, plant and equipment below	—		—		—		—		—		—		38		54
Cash paid to parent for property, plant and equipment below	—		—		—		—		—		—		65		61
Property, plant and equipment from parent (1)	—		—		—		—		—		—		103		115

(1) Property, plant and equipment purchased from CenterPoint Energy at its net carrying value on the date of purchase.

- Definition

The entire disclosure for related party transactions. Examples of related party transactions include transactions between (a) a parent company and its subsidiary; (b) subsidiaries of a common parent; (c) and entity and its principal owners; and (d) affiliates.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480990/946-20-50-2

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 20
-Name Accounting Standards Codification
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-URI https://asc.fasb.org//1943274/2147480990/946-20-50-5

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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-SubTopic 20
-Name Accounting Standards Codification
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-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480990/946-20-50-6

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 235
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481062/946-235-50-2

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 235
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (e)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481062/946-235-50-2

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Topic 850
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483326/850-10-50-1

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 220
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.6-07(2)(g)(3))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483575/946-220-S99-1

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
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-SubTopic 220
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.6-07(2)(c))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483575/946-220-S99-1

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 220
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.6-07(2)(e))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483575/946-220-S99-1

Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Topic 850
-Name Accounting Standards Codification
-Publisher FASB
-URI https://asc.fasb.org//850/tableOfContent

Reference 11: http://www.xbrl.org/2003/role/disclosureRef
-Topic 850
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483326/850-10-50-6

Reference 12: http://www.xbrl.org/2003/role/disclosureRef
-Topic 850
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483326/850-10-50-1

Reference 13: http://www.xbrl.org/2003/role/disclosureRef
-Topic 850
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483326/850-10-50-1

+ Details

Goodwill and Other Intangibles (CenterPoint Energy and CERC)

9 Months Ended

Sep. 30, 2023

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and Other Intangibles (CenterPoint Energy and CERC)

Goodwill (CenterPoint Energy and CERC)

CenterPoint Energy’s goodwill by reportable segment is as follows:


	December 31, 2022		Disposals			September 30, 2023
	(in millions)
Electric (1)	$	936	$	—		$	936
Natural Gas	2,920		—			2,920
Corporate and Other	438		134		(2)	304

Total	$	4,294	$	134		$	4,160

(1)Amount presented is net of the accumulated goodwill impairment charge of $185 million recorded in 2020.

(2)Represents goodwill attributable to the sale of Energy Systems Group. For further information, see Note 3.

CERC’s goodwill as of both September 30, 2023 and December 31, 2022 is as follows:



	(in millions)
Goodwill	$	1,583

When a disposal group reflects a component of a reporting unit and meets the definition of a business, the goodwill within that reporting unit is allocated to the disposal group based on the relative fair value of the components representing a business that will be retained and disposed. As described further in Note 3, certain assets and liabilities of Energy Systems Group, including goodwill of $134 million at CenterPoint Energy, were disposed of upon consummation of the sale of Energy Systems Group in the second quarter of 2023. The disposal of goodwill attributable to Energy Systems Group was reflected in the loss on sale of $12 million during the nine months ended September 30, 2023.

CenterPoint Energy and CERC perform goodwill impairment tests at least annually and evaluate goodwill when events or changes in circumstances indicate that its carrying value may not be recoverable. The impairment evaluation for goodwill is performed by comparing the fair value of each reporting unit with the carrying amount of the reporting unit, including goodwill. The reporting units approximate the reportable segments. The estimated fair value of the reporting unit is primarily determined based on an income approach or a weighted combination of income and market approaches. If the carrying amount is in excess of the estimated fair value of the reporting unit, then the excess amount is recorded as an impairment charge, not to exceed the carrying amount of goodwill.

CenterPoint Energy and CERC performed their annual goodwill impairment tests in the third quarter of 2023 and determined that no goodwill impairment charge was required for any reporting unit as a result of those tests.

Other Intangibles (CenterPoint Energy)


	September 30, 2023						December 31, 2022
	Gross Carrying Amount		Accumulated Amortization		Net Balance		Gross Carrying Amount		Accumulated Amortization		Net Balance
	(in millions)
Customer relationships (1)	$	—	$	—	$	—	$	33	$	(16)	$	17

Trade names (1)	—		—		—		16		(6)		10

Operation and maintenance agreements (1) (2)	—		—		—		12		(2)		10
Other	2		(1)		1		2		(1)		1
Total	$	2	$	(1)	$	1	$	63	$	(25)	$	38


	Three Months Ended September 30,				Nine Months Ended September 30,
	2023		2022		2023		2022
	(in millions)
Amortization expense of intangible assets recorded in Depreciation and amortization	$	—	$	1	$	3	$	4

CenterPoint Energy estimates that amortization expense of intangible assets with finite lives for the next five years will not be significant

Reportable Segments (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
Reportable Segments (Details) - USD ($) $ in Millions	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Segment Reporting Information [Line Items]
Revenues	$ 1,860	$ 1,903	$ 6,514	$ 6,610
Net income	282	202	725	923
Total Assets	39,001		39,001		$ 38,546
Continuing Operations
Segment Reporting Information [Line Items]
Total Assets	39,001		39,001		38,546
Houston Electric
Segment Reporting Information [Line Items]
Revenues	1,083	935	2,784	2,562
Net income	256	200	522	408
Total Assets	17,159		17,159		15,339
Affiliates of NRG \| Houston Electric
Segment Reporting Information [Line Items]
Revenues	370	327	826	797
Affiliates of Vistra Energy Corp. \| Houston Electric
Segment Reporting Information [Line Items]
Revenues	177	153	403	372
Electric \| Affiliates of NRG
Segment Reporting Information [Line Items]
Revenues	370	327	826	797
Electric \| Affiliates of Vistra Energy Corp.
Segment Reporting Information [Line Items]
Revenues	177	153	403	372
Natural Gas
Segment Reporting Information [Line Items]
Revenues	597	692	3,136	3,334
Corporate and Other
Segment Reporting Information [Line Items]
Revenues	2	65	128	184
Corporate and Other \| Pension and Other Postretirement Plans Costs
Segment Reporting Information [Line Items]
Regulatory assets	379		379		405
Operating Segments \| Electric
Segment Reporting Information [Line Items]
Revenues	1,261	1,146	3,250	3,092
Net income	290	234	593	489
Total Assets	21,130		21,130		19,024
Operating Segments \| Natural Gas
Segment Reporting Information [Line Items]
Revenues	597	692	3,136	3,334
Net income	27	(10)	296	416
Total Assets	16,802		16,802		18,043
Operating Segments \| Corporate and Other
Segment Reporting Information [Line Items]
Revenues	2	65	128	184
Net income	(35)	$ (22)	(164)	$ 18
Total Assets	$ 1,069		$ 1,069		$ 1,479

Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
Income Taxes (Details) - USD ($) $ in Millions	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Income Tax Contingency [Line Items]
Effective income tax rate (as a percent)	19.00%	27.00%	25.00%	26.00%
Net uncertain tax liability	$ 29		$ 29
Houston Electric
Income Tax Contingency [Line Items]
Effective income tax rate (as a percent)	22.00%	21.00%	22.00%	21.00%
CERC
Income Tax Contingency [Line Items]
Effective income tax rate (as a percent)	25.00%	170.00%	22.00%	25.00%

Equity Securities and Indexed Debt Securities (ZENS) (CenterPoint Energy) (Tables)

9 Months Ended

Sep. 30, 2023

Investments, Debt and Equity Securities [Abstract]

Schedule of Gain (Loss) on Securities

Gains and losses on equity securities, net of transaction costs, are recorded in Gain (Loss) on Equity Securities in CenterPoint Energy’s Condensed Statements of Consolidated Income.


	Gains (Losses) on Equity Securities
	Three Months Ended September 30,				Nine Months Ended September 30,
	2023		2022		2023		2022
	(in millions)
AT&T Common	$	(10)	$	(57)	$	(35)	$	(94)
Charter Common	63		(144)		88		(304)
WBD Common	(5)		(5)		3		28
Energy Transfer Common Units	—		—		—		95
Energy Transfer Series G Preferred Units	—		—		—		(9)
Other	1		—		—		—
Total	$	49	$	(206)	$	56	$	(284)

Schedule of Debt Securities, Trading, and Equity Securities, FV-NI


	Shares Held		Carrying Value
	September 30, 2023	December 31, 2022	September 30, 2023		December 31, 2022
			(in millions)
AT&T Common	10,212,945	10,212,945	$	153	$	188
Charter Common	872,503	872,503	384		296
WBD Common	2,470,685	2,470,685	27		23


Other			2		3
Total			$	566	$	510

Schedule of Indexed Debt Securities and Marketable Securities

CenterPoint Energy’s reference shares for each ZENS consisted of the following:


	September 30, 2023	December 31, 2022
	(in shares)
AT&T Common	0.7185	0.7185
Charter Common	0.061382	0.061382
WBD Common	0.173817	0.173817

Commitments and Contingencies - Schedule of Estimated Accrued Costs (Details) $ in Millions	9 Months Ended
	Sep. 30, 2023 USD ($)
Minnesota and Indiana Gas Service Territories
Loss Contingencies [Line Items]
Liability recorded for environmental loss contingencies	$ 17
Minnesota and Indiana Gas Service Territories \| Minimum
Loss Contingencies [Line Items]
Estimated remediation costs	$ 12
Years to resolve contingency	5 years
Minnesota and Indiana Gas Service Territories \| Maximum
Loss Contingencies [Line Items]
Estimated remediation costs	$ 51
Years to resolve contingency	50 years
Minnesota Service Territory \| CERC
Loss Contingencies [Line Items]
Liability recorded for environmental loss contingencies	$ 15
Minnesota Service Territory \| CERC \| Minimum
Loss Contingencies [Line Items]
Estimated remediation costs	$ 11
Years to resolve contingency	5 years
Minnesota Service Territory \| CERC \| Maximum
Loss Contingencies [Line Items]
Estimated remediation costs	$ 44
Years to resolve contingency	50 years

Commitments and Contingencies - Schedule of Undiscounted Minimum Purchase Obligations (Details) $ in Millions	9 Months Ended
	Sep. 30, 2023 USD ($)
Natural Gas Supply
Other Commitments [Line Items]
Remaining three months of 2023	$ 220
2024	683
2025	588
2026	501
2027	425
2028	380
2029 and beyond	1,710
Electric Supply
Other Commitments [Line Items]
Remaining three months of 2023	51
2024	160
2025	492
2026	342
2027	105
2028	68
2029 and beyond	719
Other
Other Commitments [Line Items]
Remaining three months of 2023	71
2024	181
2025	39
2026	39
2027	0
2028	0
2029 and beyond	$ 332
Other \| Capital Addition Purchase Commitments \| Minimum
Other Commitments [Line Items]
Undiscounted minimum payment obligation, term	15 years
Other \| Capital Addition Purchase Commitments \| Maximum
Other Commitments [Line Items]
Undiscounted minimum payment obligation, term	25 years
Natural Gas Supply \| CERC
Other Commitments [Line Items]
Remaining three months of 2023	$ 218
2024	678
2025	584
2026	497
2027	421
2028	376
2029 and beyond	$ 1,685

Revenue Recognition and Allowance for Credit Losses

9 Months Ended

Sep. 30, 2023

Revenue from Contract with Customer [Abstract]

Revenue Recognition and Allowance for Credit Losses

Revenues from Contracts with Customers

In accordance with ASC 606, Revenue from Contracts with Customers, revenue is recognized when a customer obtains control of promised goods or services. The amount of revenue recognized reflects the consideration to which the Registrants expect to be entitled to receive in exchange for these goods or services.

ARPs are contracts between the utility and its regulators, not between the utility and a customer. The Registrants recognize ARP revenue as other revenues when the regulator-specified conditions for recognition have been met. Upon recovery of ARP revenue through incorporation in rates charged for utility service to customers, ARP revenue is reversed and recorded as

revenue from contracts with customers. The recognition of ARP revenues and the reversal of ARP revenues upon recovery through rates charged for utility service may not occur in the same period.

The following tables disaggregate revenues by reportable segment and major source:

CenterPoint Energy


	Three Months Ended September 30, 2023
	Electric		Natural Gas		Corporate and Other		Total
	(in millions)
Revenue from contracts	$	1,274	$	589	$	1	$	1,864

Other (1)	(13)		8		1		(4)

Total revenues	$	1,261	$	597	$	2	$	1,860

	Nine Months Ended September 30, 2023
	Electric		Natural Gas		Corporate and Other		Total
	(in millions)
Revenue from contracts	$	3,272	$	3,100	$	125	$	6,497
Other (1)	(22)		36		3		17

Total revenues	$	3,250	$	3,136	$	128	$	6,514


	Three Months Ended September 30, 2022
	Electric		Natural Gas		Corporate and Other		Total
	(in millions)
Revenue from contracts	$	1,155	$	686	$	65	$	1,906
Other (1)	(9)		6		—		(3)

Total revenues	$	1,146	$	692	$	65	$	1,903

	Nine Months Ended September 30, 2022
	Electric		Natural Gas		Corporate and Other		Total
	(in millions)
Revenue from contracts	$	3,113	$	3,358	$	182	$	6,653
Other (1)	(21)		(24)		2		(43)

Total revenues	$	3,092	$	3,334	$	184	$	6,610

Houston Electric


	Three Months Ended September 30,				Nine Months Ended September 30,
	2023		2022		2023		2022
	(in millions)
Revenue from contracts	$	1,100	$	949	$	2,821	$	2,597
Other (1)	(17)		(14)		(37)		(35)
Total revenues	$	1,083	$	935	$	2,784	$	2,562

(1)Primarily consists of income from ARPs and leases. Lease income was not significant for the three and nine months ended September 30, 2023 and 2022.

CERC


	Three Months Ended September 30,				Nine Months Ended September 30,
	2023		2022		2023		2022
	(in millions)
Revenue from contracts	$	575	$	667	$	3,012	$	3,257
Other (1)	8		5		33		(25)

Total revenues	$	583	$	672	$	3,045	$	3,232

Revenues from Contracts with Customers

Electric (CenterPoint Energy and Houston Electric). Houston Electric distributes electricity to customers over time, and customers consume the electricity when delivered. Indiana Electric generates, transmits and distributes electricity to customers over time, and customers consume the electricity when delivered. Revenue, consisting of both volumetric and fixed tariff rates set by state regulators, such as the PUCT and the IURC, is recognized as electricity is delivered and represents amounts both billed and unbilled. Discretionary services requested by customers are provided at a point in time with control transferring upon the completion of the service. Revenue for discretionary services provided by Houston Electric is recognized upon completion of service based on the tariff rates set by the PUCT. Payments for electricity distribution and discretionary services are aggregated and received on a monthly basis. Houston Electric performs transmission services over time as a stand-ready obligation to provide a reliable network of transmission systems. Revenue is recognized upon time elapsed, and the monthly tariff rate set by the regulator. Payments are received on a monthly basis. Indiana Electric customers are billed monthly and payment terms, set by the regulator, require payment within a month of billing.

Natural Gas (CenterPoint Energy and CERC). CenterPoint Energy and CERC distribute and transport natural gas to customers over time, and customers consume the natural gas when delivered. Revenue, consisting of both volumetric and fixed tariff rates set by the state governing agency for that service area, is recognized as natural gas is delivered and represents amounts both billed and unbilled. Discretionary services requested by the customer are satisfied at a point in time and revenue is recognized upon completion of service and the tariff rates set by the applicable state regulator. Payments of natural gas distribution, transportation and discretionary services are aggregated and received on a monthly basis.

Contract Balances. When the timing of delivery of service is different from the timing of the payments made by customers and when the right to consideration is conditioned on something other than the passage of time, the Registrants recognize either a contract asset (performance precedes billing) or a contract liability (customer payment precedes performance). Those customers that prepay are represented by contract liabilities until the performance obligations are satisfied. The Registrants’ contract assets are included in Accrued unbilled revenues and contract liabilities are included in Accounts payable and Other current liabilities in their Condensed Consolidated Balance Sheets. CenterPoint Energy’s contract assets and contract liabilities primarily related to Energy Systems Group contracts where revenue was recognized using the input method prior to the sale of Energy Systems Group that was completed on June 30, 2023.

The opening and closing balances of accounts receivable, other accrued unbilled revenue, contract assets and contract liabilities from contracts with customers are as follows:

CenterPoint Energy


	Accounts Receivable		Other Accrued Unbilled Revenues		Contract Assets			Contract Liabilities
	(in millions)
Opening balance as of December 31, 2022	$	858	$	764	$	4		$	45
Closing balance as of September 30, 2023	733		340		—			5
Decrease	$	(125)	$	(424)	$	(4)	(1)	$	(40)	(1)

(1)Decrease primarily related to the completed sale of Energy Systems Group on June 30, 2023.

Houston Electric


	Accounts Receivable		Other Accrued Unbilled Revenues		Contract Liabilities
	(in millions)
Opening balance as of December 31, 2022	$	271	$	142	$	2
Closing balance as of September 30, 2023	459		182		5
Increase (decrease)	$	188	$	40	$	3

The amount of revenue recognized during the nine-month period ended September 30, 2023 that was included in the opening contract liability was $2 million. The difference between the opening and closing balances of the contract liabilities primarily results from the timing difference between Houston Electric’s performance and the customer’s payment.

CERC


	Accounts Receivable		Other Accrued Unbilled Revenues
	(in millions)
Opening balance as of December 31, 2022	$	478	$	573
Closing balance as of September 30, 2023	230		119
Decrease	$	(248)	$	(454)

CERC does not have any opening or closing contract asset or contract liability balances.

Remaining Performance Obligations (CenterPoint Energy). Following the completed sale of Energy Systems Group on June 30, 2023, CenterPoint Energy had no remaining performance obligations.

Practical Expedients and Exemption. Sales taxes and other similar taxes collected from customers are excluded from the transaction price. For contracts for which revenue from the satisfaction of the performance obligations is recognized in the amount invoiced, the practical expedient was elected and revenue expected to be recognized on these contracts has not been disclosed.

Allowance for Credit Losses

CenterPoint Energy and CERC segregate financial assets that fall under the scope of Topic 326, primarily trade receivables due in one year or less, into portfolio segments based on shared risk characteristics, such as geographical location and regulatory environment, for evaluation of expected credit losses. Historical and current information, such as average write-offs, are applied to each portfolio segment to estimate the allowance for losses on uncollectible receivables. Additionally, the allowance for losses on uncollectible receivables is adjusted for reasonable and supportable forecasts of future economic conditions, which can include changing weather, commodity prices, regulations, and macroeconomic factors, among others. Houston Electric had no material changes in its methodology to recognize losses on financial assets that fall under the scope of Topic 326, primarily due to the nature of its customers and regulatory environment. For a discussion of regulatory deferrals, including those related to COVID-19, see Note 6.

- Definition

The entire disclosure of revenue from contract with customer to transfer good or service and to transfer nonfinancial asset. Includes, but is not limited to, disaggregation of revenue, credit loss recognized from contract with customer, judgment and change in judgment related to contract with customer, and asset recognized from cost incurred to obtain or fulfill contract with customer. Excludes insurance and lease contracts.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 9
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479806/606-10-50-9

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 10
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479806/606-10-50-10

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 15
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479806/606-10-50-15

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 12
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479806/606-10-50-12

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 12
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479806/606-10-50-12

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 12
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479806/606-10-50-12

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 12
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479806/606-10-50-12

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 12
-Subparagraph (e)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479806/606-10-50-12

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Subparagraph (b)(2)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479806/606-10-50-13

Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Name Accounting Standards Codification
-Topic 606
-Publisher FASB
-URI https://asc.fasb.org//606/tableOfContent

+ Details

Short-term Borrowings and Long-term Debt - Debt Repayments and Redemptions (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2023	Jan. 17, 2023
Long-term Debt
Debt Instrument [Line Items]
Aggregate Principal Amount	$ 2,536
CERC
Debt Instrument [Line Items]
Aggregate Principal Amount	$ 2,000
CERC \| Senior Notes
Debt Instrument [Line Items]
Interest Rate	0.70%
CERC \| Long-term Debt
Debt Instrument [Line Items]
Aggregate Principal Amount	$ 2,275
CERC Term Loan 0.70%Due 2023 \| CERC
Debt Instrument [Line Items]
Aggregate Principal Amount	$ 500
CERC Term Loan 0.70%Due 2023 \| CERC \| SOFR
Debt Instrument [Line Items]
Interest Rate	0.70%
CERC Senior Notes 0.70% Due 2023 \| CERC \| Long-term Debt \| Senior Notes
Debt Instrument [Line Items]
Aggregate Principal Amount	$ 700
Interest Rate	0.70%
CERC Floating Rate Senior 0.5% Due 2023 \| CERC \| Long-term Debt \| Senior Notes
Debt Instrument [Line Items]
Aggregate Principal Amount	$ 575
CERC Floating Rate Senior 0.5% Due 2023 \| CERC \| LIBOR Plus \| Long-term Debt \| Senior Notes
Debt Instrument [Line Items]
Interest Rate	0.50%
CNP First Mortgage Bonds 4.00% Due 2044 \| SIGECO \| Long-term Debt \| First Mortgage Bonds
Debt Instrument [Line Items]
Aggregate Principal Amount	$ 11	$ 11
Interest Rate	4.00%
CNP Term Loan 1.50% Due 2023
Debt Instrument [Line Items]
Aggregate Principal Amount	$ 250
CNP Term Loan 1.50% Due 2023 \| Term Loan
Debt Instrument [Line Items]
Aggregate Principal Amount	$ 250
CNP Term Loan 1.50% Due 2023 \| SOFR \| Term Loan
Debt Instrument [Line Items]
Interest Rate	1.50%
CNP First Mortgage Bonds Due 2044 \| SIGECO \| Long-term Debt \| First Mortgage Bonds
Debt Instrument [Line Items]
Debt instrument, redemption price (as a percent)	100.00%
CERC Senior Notes .70% due 2023 \| CERC \| SOFR \| Term Loan
Debt Instrument [Line Items]
Adjustment to basis spread (as a percent)	0.10%
CERC Term Loan 5.25% Due 2024 \| CERC \| Term Loan
Debt Instrument [Line Items]
Aggregate Principal Amount	$ 500

Condensed Consolidated Balance Sheets (Unaudited) - CERC - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022
Current Assets:
Cash and cash equivalents	$ 120	$ 74
Accounts receivable, less allowance for credit losses	767	889
Accrued unbilled revenues	340	764
Materials and supplies	672	635
Natural gas and coal inventory	138	241
Non-trading derivative assets	1	10
Taxes receivable	67	20
Regulatory assets	217	1,385
Prepaid expenses and other current assets	134	171
Total current assets	3,022	4,699
Property, Plant and Equipment:
Property, plant and equipment	39,618	37,728
Less: accumulated depreciation and amortization	10,447	10,585
Property, plant and equipment, net	29,171	27,143
Other Assets:
Goodwill	4,160	4,294
Regulatory assets	2,481	2,193
Non-trading derivative assets	0	2
Other non-current assets	167	215
Total other assets	6,808	6,704
Total Assets	39,001	38,546
Current Liabilities:
Short-term borrowings	4	511
Current portion of other long-term debt	1,255	1,346
Accounts payable	763	1,352
Taxes accrued	244	298
Interest accrued	179	159
Customer deposits	110	110
Other current liabilities	407	452
Total current liabilities	3,893	5,113
Other Liabilities:
Deferred income taxes, net	4,128	3,986
Benefit obligations	533	547
Regulatory liabilities	3,195	3,245
Other non-current liabilities	829	774
Total other liabilities	8,685	8,552
Total long-term debt, net	16,838	14,836
Commitments and Contingencies (Note 13)
Shareholders’ Equity:
Common stock	6	6
Additional paid-in capital	8,581	8,568
Retained earnings	1,027	709
Accumulated other comprehensive income	(29)	(31)
Total shareholders’ equity	9,585	10,042
Total Liabilities and Shareholders’ Equity	39,001	38,546
CERC
Current Assets:
Cash and cash equivalents	1	0
Accrued unbilled revenues	119	573
Materials and supplies	118	98
Natural gas and coal inventory	92	195
Non-trading derivative assets	1	7
Taxes receivable	0	12
Regulatory assets	205	1,336
Prepaid expenses and other current assets	46	78
Total current assets	916	2,814
Property, Plant and Equipment:
Property, plant and equipment	15,460	14,379
Less: accumulated depreciation and amortization	4,151	3,973
Property, plant and equipment, net	11,309	10,406
Other Assets:
Goodwill	1,583	1,583
Regulatory assets	833	844
Non-trading derivative assets	0	2
Other non-current assets	53	55
Total other assets	2,469	2,484
Total Assets	14,694	15,704
Current Liabilities:
Short-term borrowings	4	511
Current portion of other long-term debt	57	1,331
Taxes accrued	178	140
Interest accrued	44	50
Customer deposits	95	94
Other current liabilities	220	200
Total current liabilities	1,096	3,206
Other Liabilities:
Deferred income taxes, net	1,168	1,262
Benefit obligations	76	76
Regulatory liabilities	1,857	1,801
Other non-current liabilities	513	501
Total other liabilities	3,614	3,640
Total long-term debt, net	4,186	3,495
Commitments and Contingencies (Note 13)
Shareholders’ Equity:
Common stock	0	0
Additional paid-in capital	4,229	3,729
Retained earnings	1,554	1,618
Accumulated other comprehensive income	15	16
Total shareholders’ equity	5,798	5,363
Total Liabilities and Shareholders’ Equity	14,694	15,704
CERC \| Nonrelated Party
Current Assets:
Accounts receivable, less allowance for credit losses	234	463
Current Liabilities:
Accounts payable	289	690
CERC \| Affiliated Entity
Current Assets:
Accounts receivable, less allowance for credit losses	14	52
Notes receivable–affiliated companies	86	0
Current Liabilities:
Accounts payable	$ 209	$ 190

Condensed Consolidated Balance Sheets (Unaudited) - CERC (Parenthetical) - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022
Allowance for credit losses	$ 31	$ 38
Accrued unbilled revenues, allowance for credit losses	1	4
CERC
Allowance for credit losses	28	34
Accrued unbilled revenues, allowance for credit losses	$ 1	$ 4

Income Taxes (Tables)

9 Months Ended

Sep. 30, 2023

Income Tax Disclosure [Abstract]

Schedule of Effective Income Tax Rate Reconciliation

The Registrants reported the following effective tax rates:


	Three Months Ended September 30,				Nine Months Ended September 30,
	2023		2022		2023		2022
CenterPoint Energy (1) (2)	19	%	27	%	25	%	26	%

Houston Electric (3)	22	%	21	%	22	%	21	%
CERC (4) (5)	25	%	170	%	22	%	25	%

(1)CenterPoint Energy’s lower effective tax rate for the three months ended September 30, 2023 compared to the same period ended September 30, 2022 was primarily due to the tax impacts of the absence of non-deductible goodwill

associated with the sale of the Natural Gas business in Arkansas and Oklahoma in 2022 and an increase in EDIT amortization of the net regulatory liability for EDIT.

(2)CenterPoint Energy’s lower effective tax rate for the nine months ended September 30, 2023 compared to the same period ended September 30, 2022 was primarily due to the tax impacts of the absence of non-deductible goodwill associated with the sale of the Natural Gas businesses in Arkansas and Oklahoma in 2022, partially offset by the tax impacts of the sale of Energy Systems Group and an increase in state income taxes.

(3)Houston Electric’s higher effective tax rate for the three and nine months ended September 30, 2023 compared to the same periods ended September 30, 2022 was primarily driven by an increase in state income taxes.

(4)CERC’s lower effective tax rate for the three months ended September 30, 2023 compared to the same period ended September 30, 2022 was primarily driven by the tax impact of the absence of non-deductible goodwill associated with the sale of the Natural Gas businesses in Arkansas and Oklahoma in 2022 and an increase in the favorable impact of amortization of the net regulatory liability for EDIT.

(5)CERC’s lower effective tax rate for the nine months ended September 30, 2023 compared to the same period ended September 30, 2022 was primarily driven by the tax impact of the absence of non-deductible goodwill associated with the sale of the Natural Gas businesses in Arkansas and Oklahoma in 2022 and increase in the favorable impact of amortization of the net regulatory liability for EDIT, partially offset by an increase in state income taxes.

Condensed Statements of Consolidated Changes in Equity (Unaudited) (Parenthetical) - $ / shares	Sep. 30, 2023	Dec. 31, 2022	Sep. 30, 2022
Statement of Stockholders' Equity [Abstract]
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01	$ 0.01
Preferred stock, authorized (in shares)	20,000,000	20,000,000	20,000,000
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01	$ 0.01
Common stock, authorized (in shares)	1,000,000,000	1,000,000,000	1,000,000,000

Leases (Tables)

9 Months Ended

Sep. 30, 2023

Leases [Abstract]

Schedule of Lease Cost

The components of lease cost, included in Operation and maintenance expense on the Registrants’ respective Condensed Statements of Consolidated Income, are as follows:


	Three Months Ended September 30, 2023						Three Months Ended September 30, 2022
	CenterPoint Energy		Houston Electric		CERC		CenterPoint Energy		Houston Electric		CERC
	(in millions)
Operating lease cost	$	1	$	1	$	—	$	2	$	—	$	—
Short-term lease cost	15		14		—		39		39		1

Total lease cost (1)	$	16	$	15	$	—	$	41	$	39	$	1

	Nine Months Ended September 30, 2023						Nine Months Ended September 30, 2022
	CenterPoint Energy		Houston Electric		CERC		CenterPoint Energy		Houston Electric		CERC
	(in millions)
Operating lease cost	$	4	$	2	$	1	$	4	$	—	$	1
Short-term lease cost	28		27		—		123		122		1

Total lease cost (1)	$	32	$	29	$	1	$	127	$	122	$	2

(1) CenterPoint Energy and Houston Electric defer finance lease costs for TEEEF to Regulatory assets for recovery rather than recognizing Depreciation and Amortization in the Condensed Statements of Consolidated Income.

Schedule of Operating Lease Income

Lease income was as follows:


	Three Months Ended September 30, 2023						Three Months Ended September 30, 2022
	CenterPoint Energy		Houston Electric		CERC		CenterPoint Energy		Houston Electric		CERC
	(in millions)
Operating lease income	$	2	$	1	$	1	$	1	$	1	$	1
Variable lease income	—		—		—		—		—		—
Total lease income	$	2	$	1	$	1	$	1	$	1	$	1

	Nine Months Ended September 30, 2023						Nine Months Ended September 30, 2022
	CenterPoint Energy		Houston Electric		CERC		CenterPoint Energy		Houston Electric		CERC
	(in millions)
Operating lease income	$	5	$	1	$	3	$	4	$	1	$	2
Variable lease income	1		—		—		1		—		—
Total lease income	$	6	$	1	$	3	$	5	$	1	$	2

Schedule of Supplemental Balance Sheet Information Related To Leases

Supplemental balance sheet information related to leases was as follows:


	September 30, 2023									December 31, 2022
	CenterPoint Energy			Houston Electric			CERC			CenterPoint Energy			Houston Electric			CERC
	(in millions, except lease term and discount rate)
Assets:
Operating ROU assets (1)	$	15		$	6		$	4		$	19		$	6		$	5
Finance ROU assets (2)	550			550			—			621			621			—
Total leased assets	$	565		$	556		$	4		$	640		$	627		$	5

Liabilities:
Current operating lease liability (3)	$	4		$	1		$	1		$	5		$	1		$	2
Non-current operating lease liability (4)	11			5			3			14			5			4
Total leased liabilities (5)	$	15		$	6		$	4		$	19		$	6		$	6

Weighted-average remaining lease term (in years) - operating leases	5.7			4.1			3.3			4.3			4.8			3.9
Weighted-average discount rate - operating leases	3.94		%	4.09		%	3.60		%	3.80		%	4.01		%	3.58		%
Weighted-average remaining lease term (in years) - finance leases	5.8			5.8			—			6.5			6.5			—
Weighted-average discount rate - finance leases	3.60		%	3.60		%	—			3.60		%	3.60		%	—

(1)Reported within Other assets in the Registrants’ respective Condensed Consolidated Balance Sheets.

(2)Reported within Property, Plant and Equipment in the Registrants’ respective Condensed Consolidated Balance Sheets. Finance lease assets are recorded net of accumulated amortization.

(3)Reported within Current other liabilities in the Registrants’ respective Condensed Consolidated Balance Sheets.

(4)Reported within Other liabilities in the Registrants’ respective Condensed Consolidated Balance Sheets.

(5)Finance lease liabilities were not significant as of June 30, 2023 or December 31, 2022 and are reported within Other long-term debt in the Registrants’ respective Condensed Consolidated Balance Sheets when applicable.

Schedule of Operating Lease Liability Maturity

As of September 30, 2023, finance lease liabilities were not significant to the Registrants. As of September 30, 2023, maturities of operating lease liabilities were as follows:


	CenterPoint Energy		Houston Electric		CERC
	(in millions)
Remainder of 2023	$	2	$	—	$	1
2024	3		2		2
2025	3		2		1
2026	3		2		1
2027	2		1		—
2028	2		—		—
2029 and beyond	1		—		—
Total lease payments	16		7		5
Less: Interest	1		1		1
Present value of lease liabilities	$	15	$	6	$	4

Schedule of Operating Lease Payments to be Received

As of September 30, 2023, maturities of undiscounted operating lease payments to be received are as follows:


	CenterPoint Energy		Houston Electric		CERC
	(in millions)
Remainder of 2023	$	2	$	—	$	1
2024	6		1		5
2025	8		1		5
2026	8		—		5
2027	7		—		5
2028	7		—		5
2029 and beyond	173		—		170
Total lease payments to be received	$	211	$	2	$	196

Schedule of Other Information Related To Leases

Other information related to leases is as follows:


	Three Months Ended September 30, 2023						Three Months Ended September 30, 2022
	CenterPoint Energy		Houston Electric		CERC		CenterPoint Energy		Houston Electric		CERC
	(in millions)
Operating cash flows from operating leases included in the measurement of lease liabilities	$	1	$	—	$	—	$	1	$	—	$	—
Financing cash flows from finance leases included in the measurement of lease liabilities	—		—		—		47		47		—

	Nine Months Ended September 30, 2023						Nine Months Ended September 30, 2022
	CenterPoint Energy		Houston Electric		CERC		CenterPoint Energy		Houston Electric		CERC
	(in millions)
Operating cash flows from operating leases included in the measurement of lease liabilities	$	4	$	1	$	1	$	4	$	—	$	1
Financing cash flows from finance leases included in the measurement of lease liabilities	—		—		—		218		218		—

Condensed Statements of Consolidated Changes in Equity (Unaudited) - Houston Electric - USD ($) $ in Millions	Total	Common Stock	Additional Paid-in-Capital	Retained Earnings	Houston Electric	Houston Electric Common Stock	Houston Electric Additional Paid-in-Capital	Houston Electric Retained Earnings
Balance, beginning of period (in shares) at Dec. 31, 2021		629,000,000				1,000
Balance, beginning of period at Dec. 31, 2021		$ 6	$ 8,529	$ 154		$ 0	$ 2,678	$ 944
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Non-cash contribution from parent					$ 38		38
Contribution from parent							1,143
Other							1
Net income	$ 923			923	408			408
Dividend to parent								(141)
Balance, end of period (in shares) at Sep. 30, 2022		629,000,000				1,000
Balance, end of period at Sep. 30, 2022	9,989	$ 6	8,557	719	5,071	$ 0	3,860	1,211
Balance, beginning of period (in shares) at Jun. 30, 2022		629,000,000				1,000
Balance, beginning of period at Jun. 30, 2022		$ 6	8,544	768		$ 0	3,860	1,085
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Non-cash contribution from parent					0		0
Contribution from parent							0
Other							0
Net income	202			202	200			200
Dividend to parent								(74)
Balance, end of period (in shares) at Sep. 30, 2022		629,000,000				1,000
Balance, end of period at Sep. 30, 2022	$ 9,989	$ 6	8,557	719	5,071	$ 0	3,860	1,211
Balance, beginning of period (in shares) at Dec. 31, 2022	629,535,631	630,000,000				1,000
Balance, beginning of period at Dec. 31, 2022	$ 10,042	$ 6	8,568	709	4,998	$ 0	3,860	1,138
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Non-cash contribution from parent					0		0
Contribution from parent							885
Other							0
Net income	$ 725			725	522			522
Dividend to parent								(239)
Balance, end of period (in shares) at Sep. 30, 2023	631,209,962	631,000,000				1,000
Balance, end of period at Sep. 30, 2023	$ 9,585	$ 6	8,581	1,027	6,166	$ 0	4,745	1,421
Balance, beginning of period (in shares) at Jun. 30, 2023		631,000,000				1,000
Balance, beginning of period at Jun. 30, 2023		$ 6	8,570	1,032		$ 0	4,510	1,244
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Non-cash contribution from parent					0		0
Contribution from parent							235
Other							0
Net income	$ 282			282	256			256
Dividend to parent								(79)
Balance, end of period (in shares) at Sep. 30, 2023	631,209,962	631,000,000				1,000
Balance, end of period at Sep. 30, 2023	$ 9,585	$ 6	$ 8,581	$ 1,027	$ 6,166	$ 0	$ 4,745	$ 1,421

- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

+ References

+ Details

- Definition

Amount of equity (deficit) attributable to parent. Excludes temporary equity and equity attributable to noncontrolling interest.

+ References

+ Details

Short-term Borrowings and Long-term Debt - Debt Transactions (Details) $ in Millions	9 Months Ended
	Sep. 30, 2023 USD ($)
CERC
Debt Instrument [Line Items]
Aggregate Principal Amount	$ 2,000
General Mortgage Bonds \| Houston Electric
Debt Instrument [Line Items]
Aggregate Principal Amount	1,400
Proceeds from issuance of long-term debt and capital securities, net	890
Proceeds form issuance of debt, amount to be disbursed or allocated to finance or refinance projects	296
Term Loan
Debt Instrument [Line Items]
Proceeds from issuance of long-term debt, net of discounts and issuance expenses and fees	$ 250
Senior Notes \| CERC
Debt Instrument [Line Items]
Interest Rate	0.70%
Proceeds from issuance of long-term debt, net of discounts and issuance expenses and fees	$ 1,200
Securitization Bonds \| SIGECO
Debt Instrument [Line Items]
Proceeds from issuance of long-term debt, net of discounts and issuance expenses and fees	337
Senior Notes, Term Loan, Securitization Bonds, FMBs and GMBs
Debt Instrument [Line Items]
Aggregate Principal Amount	5,571
General Mortgage Bonds 4.95% Due 2033 \| General Mortgage Bonds \| Houston Electric
Debt Instrument [Line Items]
Aggregate Principal Amount	$ 600
Interest Rate	4.95%
General Mortgage Bonds 5.30% Due 2053 \| General Mortgage Bonds \| Houston Electric
Debt Instrument [Line Items]
Aggregate Principal Amount	$ 300
Interest Rate	5.30%
General Mortgage Bonds 5.20% Due 2028 \| General Mortgage Bonds \| Houston Electric
Debt Instrument [Line Items]
Aggregate Principal Amount	$ 500
Interest Rate	5.20%
Proceeds from issuance of long-term debt and capital securities, net	$ 496
CERC Term Loan 5.25% Due 2024 \| Term Loan \| CERC
Debt Instrument [Line Items]
Aggregate Principal Amount	500
Proceeds from issuance of long-term debt, net of discounts and issuance expenses and fees	$ 500
CERC Term Loan 5.25% Due 2024 \| Term Loan \| CERC \| SOFR
Debt Instrument [Line Items]
Basis spread on variable rate (as a percent)	0.85%
CERC Senior Notes 5.25% Due 2028 \| Senior Notes \| CERC
Debt Instrument [Line Items]
Aggregate Principal Amount	$ 600
Interest Rate	525.00%
Proceeds from issuance of long-term debt, net of discounts and issuance expenses and fees	$ 308
Interest Payable	3
CERC Senior Notes 5.40% Due 2033 \| Senior Notes \| CERC
Debt Instrument [Line Items]
Aggregate Principal Amount	$ 600
Interest Rate	540.00%
CERC Senior Notes, 5.25% Due May 2028 \| Senior Notes \| CERC
Debt Instrument [Line Items]
Aggregate Principal Amount	$ 300
Interest Rate	525.00%
CNP First Mortgage Bonds 4.98% Due 2028 \| First Mortgage Bonds \| SIGECO
Debt Instrument [Line Items]
Aggregate Principal Amount	$ 100
Interest Rate	4.98%
Proceeds from issuance of long-term debt, net of discounts and issuance expenses and fees	$ 179
CNP First Mortgage Bonds 5.04% Due 2033 \| First Mortgage Bonds \| SIGECO
Debt Instrument [Line Items]
Aggregate Principal Amount	$ 80
Interest Rate	504.00%
Proceeds from issuance of long-term debt, net of discounts and issuance expenses and fees	$ 179
CNP Term Loan 1.50% Due 2023
Debt Instrument [Line Items]
Aggregate Principal Amount	250
CNP Term Loan 1.50% Due 2023 \| Term Loan
Debt Instrument [Line Items]
Aggregate Principal Amount	$ 250
CNP Term Loan 1.50% Due 2023 \| Term Loan \| SOFR
Debt Instrument [Line Items]
Interest Rate	1.50%
Basis spread on variable rate (as a percent)	1.50%
CNP Securitization Bonds \| Securitization Bonds \| SIGECO
Debt Instrument [Line Items]
Aggregate Principal Amount	$ 341
CNP Securitization Bonds \| Securitization Bonds \| SIGECO \| Minimum
Debt Instrument [Line Items]
Interest Rate	5.026%
CNP Securitization Bonds \| Securitization Bonds \| SIGECO \| Maximum
Debt Instrument [Line Items]
Interest Rate	5.172%
CNP Convertible Notes 4.25% Due 2026 \| Convertible Notes
Debt Instrument [Line Items]
Aggregate Principal Amount	$ 1,000
Interest Rate	4.25%
Proceeds from issuance of long-term debt, net of discounts and issuance expenses and fees	$ 985
CNP Senior Notes 5.25% Due 2026 \| Senior Notes
Debt Instrument [Line Items]
Aggregate Principal Amount	$ 400
Interest Rate	5.25%
Proceeds from issuance of long-term debt, net of discounts and issuance expenses and fees	$ 397
General Mortgage Bonds March Due 2023 \| General Mortgage Bonds \| Houston Electric
Debt Instrument [Line Items]
Proceeds from issuance of long-term debt and capital securities, net	$ 593
CERC Senior Notes .70% due 2023 \| Term Loan \| CERC \| SOFR
Debt Instrument [Line Items]
Adjustment to basis spread (as a percent)	0.10%
Term Loan Due February 2024 \| Term Loan \| CERC
Debt Instrument [Line Items]
Aggregate Principal Amount	$ 500

Employee Benefit Plans (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
Employee Benefit Plans (Details) - USD ($) $ in Millions	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Defined Benefit Plan Disclosure [Line Items]
Discretionary contribution			$ 24
Pension plans
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 6	$ 7	19	$ 23
Interest cost	19	20	57	52
Expected return on plan assets	(19)	(21)	(57)	(69)
Amortization of net loss	7	8	21	22
Settlement cost (benefit)	0	8	0	38
Net periodic cost (benefit)	13	22	40	66
Total contributions expected in current year	31		31
Total contributions to the plans during the period	26		30
Pension plans \| Houston Electric
Defined Benefit Plan Disclosure [Line Items]
Total contributions expected in current year	0		0
Total contributions to the plans during the period	0		0
Pension plans \| CERC
Defined Benefit Plan Disclosure [Line Items]
Total contributions expected in current year	0		0
Total contributions to the plans during the period	0		0
Postretirement benefit plans
Defined Benefit Plan Disclosure [Line Items]
Service cost	0	0	1	1
Interest cost	3	3	9	7
Expected return on plan assets	(1)	(1)	(4)	(3)
Amortization of prior service cost (credit)	(1)	(1)	(2)	(2)
Amortization of net loss	(2)	(1)	(6)	(3)
Net periodic cost (benefit)	(1)	0	(2)	0
Total contributions expected in current year	8		8
Total contributions to the plans during the period	1		5
Postretirement benefit plans \| Houston Electric
Defined Benefit Plan Disclosure [Line Items]
Service cost	0	0	0	0
Interest cost	1	1	4	3
Expected return on plan assets	(1)	(1)	(3)	(3)
Amortization of prior service cost (credit)	(1)	(1)	(4)	(3)
Amortization of net loss	(1)	(1)	(3)	(2)
Net periodic cost (benefit)	(2)	(2)	(6)	(5)
Total contributions expected in current year	1		1
Total contributions to the plans during the period	0		0
Postretirement benefit plans \| CERC
Defined Benefit Plan Disclosure [Line Items]
Service cost	0	1	0	1
Interest cost	1	1	3	3
Expected return on plan assets	0	(1)	0	(1)
Amortization of prior service cost (credit)	1	0	2	1
Amortization of net loss	(1)	0	(2)	(1)
Net periodic cost (benefit)	1	$ 1	3	$ 3
Total contributions expected in current year	4		4
Total contributions to the plans during the period	$ 1		$ 3

Condensed Statements of Consolidated Comprehensive Income (Unaudited) - CERC (Parenthetical) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Adjustment to pension and other postemployment plans, tax	$ 0	$ (9)	$ 0	$ (5)
CERC
Adjustment to pension and other postemployment plans, tax	$ 0	$ 0	$ 0	$ 0

Regulatory Matters

9 Months Ended

Sep. 30, 2023

Regulatory Assets and Liabilities, Other Disclosure [Abstract]

Regulatory Matters

Equity Return

The Registrants are at times allowed by a regulator to defer an equity return as part of the recoverable carrying costs of a regulatory asset. A deferred equity return is capitalized for rate-making purposes, but it is not included in the Registrant’s regulatory assets on its Condensed Consolidated Balance Sheets. The allowed equity return is recognized in the Condensed Statements of Consolidated Income as it is recovered in rates. The recoverable allowed equity return not yet recognized by the Registrants is as follows:


	September 30, 2023						December 31, 2022
	CenterPoint Energy (1)		Houston Electric (2)		CERC (3)		CenterPoint Energy (1)		Houston Electric (2)		CERC (3)
	(in millions)
Allowed equity return not recognized	$	205	$	81	$	66	$	188	$	82	$	54

(3)CERC’s allowed equity return on post in-service carrying cost associated with certain distribution facilities replacements expenditures in Texas and costs associated with investments in Indiana.

The table below reflects the amount of allowed equity return recognized by each Registrant in its Condensed Statements of Consolidated Income:


	Three Months Ended September 30,
	2023						2022
	CenterPoint Energy		Houston Electric		CERC		CenterPoint Energy		Houston Electric		CERC
	(in millions)
Allowed equity return recognized	$	14	$	14	$	—	$	14	$	12	$	1

	Nine Months Ended September 30,
	2023						2022
	CenterPoint Energy		Houston Electric		CERC		CenterPoint Energy		Houston Electric		CERC
	(in millions)
Allowed equity return recognized	$	32	$	30	$	1	$	36	$	33	$	2

February 2021 Winter Storm Event

In February 2021, certain of the Registrants’ jurisdictions experienced an extreme and unprecedented winter weather event that resulted in prolonged freezing temperatures, which impacted their businesses. The February 2021 Winter Storm Event impacted wholesale prices of CenterPoint Energy’s and CERC’s natural gas purchases and their ability to serve customers in their Natural Gas service territories, including due to the reduction in available natural gas capacity and impacts to CenterPoint Energy’s and CERC’s natural gas supply portfolio activities, and the effects of weather on their systems and their ability to transport natural gas, among other things. The overall natural gas market, including the markets from which CenterPoint Energy and CERC sourced a significant portion of their natural gas for their operations, experienced significant impacts caused by the February 2021 Winter Storm Event, resulting in extraordinary increases in the cost of natural gas purchased by CenterPoint Energy and CERC of approximately $2 billion. CenterPoint Energy and CERC have completed recovery of natural gas costs in Mississippi, Indiana and Texas discussed further below, and continue to recover the natural gas cost in Louisiana and Minnesota. As of September 30, 2023, CenterPoint Energy and CERC have each recorded current regulatory assets of $92 million and non-current regulatory assets of $141 million associated with the February 2021 Winter Storm Event. As of December 31, 2022, CenterPoint Energy and CERC have each recorded current regulatory assets of $1,175 million and non-current regulatory assets of $202 million associated with the February 2021 Winter Storm Event.

In Minnesota, the MPUC issued its written order on October 19, 2022 disallowing CERC’s recovery of approximately $36 million of the $409 million incurred, and CERC’s regulatory asset balance was reduced to reflect the disallowance. CERC filed a petition for reconsideration on November 8, 2022 and a written order denying the petition for reconsideration was issued on January 6, 2023.

CenterPoint Energy and CERC have approximately $75 million of the total $2 billion of natural gas costs incurred during the February 2021 Winter Storm Event remaining under prudence review in Louisiana, which may impact the amount ultimately recovered in Louisiana. On August 24, 2023, the LPSC Staff issued an Audit Report which recommends some prospective process changes to the gas supply bid process and did not recommend any disallowance of February 2021 Winter Storm Event gas costs incurred in Louisiana. Recovery of such costs remains subject to LPSC approval.

As of both September 30, 2023 and December 31, 2022, as authorized by the PUCT, both CenterPoint Energy and Houston Electric recorded a regulatory asset of $8 million for bad debt expenses resulting from REPs’ default on their obligation to pay delivery charges to Houston Electric net of collateral. Additionally, both CenterPoint Energy and Houston Electric recorded a regulatory asset of $17 million and $16 million as of both September 30, 2023 and December 31, 2022, to defer operations and maintenance costs associated with the February 2021 Winter Storm Event.

See Note 13(c) for further information regarding litigation related to the February 2021 Winter Storm Event.

Texas Public Securitization

The Texas Natural Gas Securitization Finance Corporation issued customer rate relief bonds in March 2023, and on March 23, 2023, CenterPoint Energy and CERC, collectively, received approximately $1.1 billion in cash proceeds from the state’s

customer rate relief bonds. The proceeds from the state’s customer rate relief bonds included carrying costs incurred through August 2022. Incremental carrying costs incurred after August 2022 until the date the proceeds were received are recorded in a separate regulatory asset to be included for recovery in a subsequent rate proceeding. As CenterPoint Energy and CERC have no future financial obligations for the repayment of the state’s customer rate relief bonds, the customer rate relief bonds are not recorded on CenterPoint Energy’s or CERC’s balance sheets. The $1.1 billion in cash proceeds from the customer rate relief bonds is considered to be a government grant. The state’s customer rate relief bonds are backed in part by customer rate relief property, including customer rate relief charges, which are non-bypassable uniform monthly volumetric charges to be paid by all existing and future customers as a component of each regulated utility’s gas cost or in another manner that the Railroad Commission determines reasonable, separate from their base rate. CERC only acts as a collection agent, whose duties include management, servicing and administration of a portion of the customer rate relief property which is associated with the customer rate relief charge imposed on customers of CERC under the guidance and direction from the Railroad Commission. The Texas Natural Gas Securitization Finance Corporation, and not CenterPoint Energy or CERC, is the owner of the customer rate relief property. The assets of the Texas Natural Gas Securitization Finance Corporation are not available to pay creditors of CenterPoint Energy, CERC, or their affiliates. While the customer rate relief charges will be included by CERC in their monthly billings, the billing amount is established by the Railroad Commission. CERC will remit all customer rate relief charges to the financing entity set up by the Railroad Commission. Therefore, the collection and servicing of customer rate relief charges have no impact on the respective Condensed Statements of Consolidated Income of CenterPoint Energy or CERC.

As U.S. generally accepted accounting principles have no specific accounting guidance for government grants or assistance, the cash proceeds from the state’s customer rate relief bonds were accounted for as a government grant by analogy to the grant model under IAS 20—Accounting for Government Grants and Disclosures of Government Assistance. CenterPoint Energy and CERC reflect the proceeds from the grant as a deduction to natural gas costs and recognized the $1.1 billion of cash proceeds from the state’s customer rate relief bonds within Utility natural gas expense on their respective Condensed Statements of Consolidated Income in the nine months ended September 30, 2023, net of the recognition of natural gas cost related to relieving CenterPoint Energy and CERC’s regulatory assets related to the February 2021 Winter Storm Event in the same period.

Indiana Electric Securitization of Generation Retirements (CenterPoint Energy)

On January 4, 2023, the IURC issued an order in accordance with Indiana Senate Enrolled Act 386 authorizing the issuance of up to $350 million in securitization bonds to securitize qualified costs associated with the retirements of Indiana Electric’s A.B. Brown coal-fired generation facilities. Accordingly, CenterPoint Energy determined that the retirement of property, plant and equipment became probable upon the issuance of the order. No loss on abandonment was recognized in connection with issuance of the order as there was no disallowance of all or part of the cost of the abandoned property, plant and equipment. In the first quarter of 2023, upon receipt of the order, CenterPoint Energy reclassified property, plant and equipment to be recovered through securitization to a regulatory asset and such amounts continued to earn a full return until recovered through securitization.

On March 24, 2023, SIGECO and the SIGECO Securitization Subsidiary filed a registration statement on Form SF-1, amended on May 16, 2023, under the Securities Act of 1933, as amended, with the SEC registering the public offering and sale of approximately $341 million aggregate principal amount of the SIGECO Securitization Bonds. The registration statement became effective on June 12, 2023. The SIGECO Securitization Subsidiary issued $341 million aggregate principal amount of the SIGECO Securitization Bonds on June 29, 2023. See Note 11 for further details of the issuance. The SIGECO Securitization Subsidiary used the net proceeds from the issuance to purchase the securitization property from SIGECO. No gain or loss was recognized.

The SIGECO Securitization Bonds are secured by the securitization property, which includes the right to recover, through non-bypassable securitization charges payable by SIGECO’s retail electric customers, the qualified costs of SIGECO authorized by the IURC order. SIGECO has no payment obligations with respect to the SIGECO Securitization Bonds except to remit collections of securitization charges as set forth in a servicing agreement between SIGECO and the SIGECO Securitization Subsidiary. The non-bypassable securitization charges are subject to a true-up mechanism.

Houston Electric TEEEF

Pursuant to legislation passed in 2021, Houston Electric entered into two leases for TEEEF (mobile generation) which are detailed in Note 19. Houston Electric initially sought recovery of deferred costs and the applicable return as of December 31, 2021 under these lease agreements of approximately $200 million in its DCRF application filed with the PUCT on April 5, 2022, and subsequently amended on July 1, 2022, to show mobile generation in a separate Rider TEEEF. The annual revenue

increase requested for these lease agreements was approximately $57 million. A final order was issued on April 5, 2023 approving a reduced revenue requirement of $39 million that results in full recovery of costs requested but lengthens the amortization period for the short-term lease to be collected over 82.5 months. On April 28, 2023, and May 1, 2023, certain intervenors filed motions for rehearing of the PUCT’s April 5, 2023 order. On May 25, 2023, the PUCT issued its order on rehearing which clarified some of the findings, but did not change the approval of TEEEF cost recovery. On June 19, 2023, certain intervenors filed motions for rehearing of the PUCT’s May 25, 2023 Order on Rehearing; the PUCT issued an order on August 3, 2023 denying the motions for rehearing. The deadline for a party to file a judicial appeal of the PUCT’s decision was September 5, 2023, and no appeal was filed. As such, the PUCT’s decision on the first TEEEF filing is now final and non-appealable.

On April 5, 2023, Houston Electric made its second TEEEF filing requesting recovery of TEEEF related costs incurred through December 31, 2022. Houston Electric is requesting a new annual revenue requirement of approximately $188 million using 78 months to amortize the related deferred costs for proposed rates beginning September 2023, a net increase in TEEEF revenues of approximately $149 million. On June 7, 2023, intervenors jointly requested a hearing, and on June 14, 2023, the PUCT staff indicated that it does not oppose a hearing in this docket. On June 21, 2023 Houston Electric made a filing that a hearing is not necessary given the PUCT’s decision in the TEEEF docket filed in 2022 and indicated that if the PUCT does refer this case to the State Office of Administrative Hearings, any preliminary order issued by the PUCT should be limited. On July 18, 2023 the PUCT referred the case to the State Office of Administrative Hearings and, on July 20, 2023, the PUCT issued a preliminary order identifying the issues to be addressed. On August 28, 2023, the State Office of Administrative Hearings issued an Order setting interim rates to collect an annual revenue requirement at the filed amount. Interim rates became effective on September 1, 2023 and are subject to surcharge or refund if they differ from the final rates approved by the PUCT. On October 12, 2023, a joint motion to abate was filed because the parties reached an agreement in principle on all issues. The agreement in principle is subject to PUCT approval. The ultimate outcome of these proceedings cannot be predicted at this time.

Houston Electric defers costs associated with the short-term and long-term leases that are probable of recovery and would otherwise be charged to expense in a regulatory asset, including allowed debt returns, and determined that such regulatory assets remain probable of recovery as of September 30, 2023. Right of use finance lease assets, such as assets acquired under the long-term leases, are evaluated for impairment under the long-lived asset impairment model by assessing if a capital disallowance from a regulator is probable through monitoring the outcome of rate cases and other proceedings. Houston Electric continues to monitor the on-going proceedings and has not recorded any impairments on its right of use assets in the year ended December 31, 2022 or the nine months ended September 30, 2023. See Note 19 for further information.

COVID-19 Regulatory Matters

Regulatory commissions in Indiana Electric’s and CenterPoint Energy’s and CERC’s Natural Gas service territories have either (1) issued orders to record a regulatory asset for incremental bad debt expenses related to COVID-19, including costs associated with the suspension of disconnections and payment plans, or (2) provided authority to recover bad debt expense through an existing tracking mechanism. Both CenterPoint Energy and CERC have recorded estimated incremental uncollectible receivables to the associated regulatory asset of $18 million and $17 million, respectively, as of September 30, 2023 and December 31, 2022. CenterPoint Energy and CERC have $5 million and $4 million, respectively, remaining to recover through rates and other sources as of September 30, 2023, and $11 million and $10 million, respectively, remaining to recover through rates and other sources as of December 31, 2022.

Short-term Borrowings and Long-term Debt (Tables)

9 Months Ended

Sep. 30, 2023

Debt Disclosure [Abstract]

Schedule of Line of Credit Facilities

Debt Transactions. During the nine months ended September 30, 2023, the following debt instruments were issued or incurred:


Registrant	Issuance Date	Debt Instrument	Aggregate Principal Amount		Interest Rate	Maturity Date
	(in millions)



Houston Electric	March 2023	General Mortgage Bonds (1)	$	600	4.95%	2033
Houston Electric	March 2023	General Mortgage Bonds (1)	300		5.30%	2053
Houston Electric	September 2023	General Mortgage Bonds (13)	500		5.20%	2028
		Total Houston Electric	1,400
CERC	February 2023	Term Loan (2)	500		SOFR (3) + 0.85%	2024
CERC	February 2023	Senior Notes (4)	600		5.25%	2028
CERC	February 2023	Senior Notes (4)	600		5.40%	2033
CERC	May 2023	Senior Notes (5)	300		5.25%	2028
		Total CERC	2,000
CenterPoint Energy (6)	March 2023	First Mortgage Bonds (7)	100		4.98%	2028
CenterPoint Energy (6)	March 2023	First Mortgage Bonds (7)	80		5.04%	2033
CenterPoint Energy	March 2023	Term Loan (8)	250		SOFR (3) + 1.50%	2023
CenterPoint Energy (9)	June 2023	Securitization Bonds (10)	341		5.026% - 5.172%	2038-2043
CenterPoint Energy	August 2023	Convertible Notes (11)	1,000		4.25%	2026
CenterPoint Energy	August 2023	Senior Notes (12)	400		5.25%	2026
		Total CenterPoint Energy	$	5,571

(3)As defined in the applicable term loan agreement, which includes an adjustment of 0.10% per annum.

(6)Issued by SIGECO.

During the nine months ended September 30, 2023, the following debt instruments were repaid at maturity or redeemed prior to maturity with proceeds received from the Texas securitization discussed further in Note 6 or through the issuance of new debt. The table does not include Bond Company payments for which there is a dedicated revenue stream,

Registrant

Repayment/Redemption Date

Debt Instrument

Aggregate Principal Amount

Interest Rate

Maturity Date

(in millions)

CERC

March 2023

Term Loan (3)

500

SOFR (2) + 0.70%

2023

CERC

March 2023

Senior Notes

700

0.70%

2023

CERC

March 2023

Floating Rate Senior Notes

575

Three-month LIBOR plus 0.5%

2023

CERC

May 2023

Term Loan (4)

500

SOFR (2) + 0.85%

2024

Total CERC

2,275

CenterPoint Energy (1)

January 2023

First Mortgage Bonds

4.00%

2044

CenterPoint Energy

March 2023

Term Loan (3)

250

SOFR (2) + 1.50%

2023

Total CenterPoint Energy

2,536

(2) As defined in the applicable term loan agreement, which includes an adjustment of 0.10% per annum.

(3) The full outstanding amount of the term loan, including accrued and unpaid interest, was repaid in March 2023 and, following the repayment, the term loan agreement was terminated.

(4) The full outstanding amount of the term loan, including accrued and unpaid interest, was repaid in May 2023 and, following the repayment, the term loan agreement was terminated.

The Registrants had the following revolving credit facilities as of September 30, 2023:


Execution Date	Registrant	Size of Facility		Draw Rate of SOFR plus (1)	Financial Covenant Limit on Debt for Borrowed Money to Capital Ratio		Debt for Borrowed Money to Capital Ratio as of September 30, 2023 (2)	Termination Date
		(in millions)
December 6, 2022	CenterPoint Energy	$	2,400	1.500%	65.0%	(3)	59.2%	December 6, 2027
December 6, 2022	CenterPoint Energy (4)	250		1.125%	65.0%		43.8%	December 6, 2027

December 6, 2022	Houston Electric	300		1.250%	67.5%	(3)	52.4%	December 6, 2027
December 6, 2022	CERC	1,050		1.125%	65.0%		38.2%	December 6, 2027
	Total	$	4,000

(1)Based on current credit ratings.

(2)As defined in the revolving credit facility agreements, excluding Securitization Bonds.

(4)This credit facility was issued by SIGECO.

The table below reflects the utilization of the Registrants’ respective revolving credit facilities:


	September 30, 2023								December 31, 2022
Registrant	Loans		Letters of Credit		Commercial Paper (2)		Weighted Average Interest Rate		Loans		Letters of Credit		Commercial Paper (2)		Weighted Average Interest Rate
	(in millions, except weighted average interest rate)
CenterPoint Energy	$	—	$	8	$	1,079	5.50	%	$	—	$	11	$	1,770	4.71	%
CenterPoint Energy (1)	—		—		—		—	%	—		—		—		—	%
Houston Electric	—		—		—		—	%	—		—		—		—	%
CERC	—		1		—		—	%	—		—		805		4.67	%
Total	$	—	$	9	$	1,079			$	—	$	11	$	2,575

(1)This credit facility was issued by SIGECO.

Condensed Consolidated Balance Sheets (Unaudited) - Houston Electric (Parenthetical) - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022
Cash and cash equivalents	$ 120	$ 74
Accounts receivable, less allowance for credit losses	767	889
Allowance for credit losses	31	38
Prepaid expenses and other current assets	134	171
Regulatory assets	2,481	2,193
Houston Electric
Cash and cash equivalents	113	75
Allowance for credit losses	1	1
Prepaid expenses and other current assets	33	41
Regulatory assets	775	778
Variable Interest Entity, Primary Beneficiary
Cash and cash equivalents	118	75
Accounts receivable, less allowance for credit losses	32	22
Prepaid expenses and other current assets	14	13
Regulatory assets	438	229
Variable Interest Entity, Primary Beneficiary \| Houston Electric
Cash and cash equivalents	113	75
Accounts receivable, less allowance for credit losses	30	22
Prepaid expenses and other current assets	13	13
Regulatory assets	$ 107	$ 229

Condensed Statements of Consolidated Income (Unaudited) - USD ($) shares in Thousands, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Revenues:
Utility revenues	$ 1,849	$ 1,829	$ 6,355	$ 6,400
Non-utility revenues	11	74	159	210
Total	1,860	1,903	6,514	6,610
Expenses:
Utility natural gas, fuel and purchased power	192	349	1,550	1,860
Non-utility cost of revenues, including natural gas	1	52	98	143
Operation and maintenance	648	670	1,990	2,020
Depreciation and amortization	374	329	1,042	974
Taxes other than income taxes	127	119	395	401
Total	1,342	1,519	5,075	5,398
Operating Income	518	384	1,439	1,212
Other Income (Expense):
Gain (loss) on equity securities	49	(206)	56	(284)
Gain (loss) on indexed debt securities	(47)	210	(52)	381
Gain (loss) on sale	0	0	(12)	303
Interest expense and other finance charges	(176)	(116)	(489)	(375)
Interest expense on Securitization Bonds	(7)	(3)	(11)	(11)
Other income, net	13	8	39	25
Total	(168)	(107)	(469)	39
Income Before Income Taxes	350	277	970	1,251
Income tax expense	68	75	245	328
Net Income	282	202	725	923
Income allocated to preferred shareholders	26	13	50	37
Income Available to Common Shareholders	$ 256	$ 189	$ 675	$ 886
Basic Earnings Per Common Share (in dollars per share)	$ 0.41	$ 0.30	$ 1.07	$ 1.41
Diluted Earnings Per Common Share (in dollars per share)	$ 0.40	$ 0.30	$ 1.07	$ 1.40
Weighted Average Common Shares Outstanding, Basic (in shares)	631,185	629,509	630,854	629,374
Weighted Average Common Shares Outstanding, Diluted (in shares)	633,043	633,068	633,037	632,933

Background and Basis of Presentation	9 Months Ended
Background and Basis of Presentation	Sep. 30, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Background and Basis of Presentation	Background and Basis of Presentation General. This combined Form 10-Q is filed separately by three registrants: CenterPoint Energy, Inc., CenterPoint Energy Houston Electric, LLC and CenterPoint Energy Resources Corp. Information contained herein relating to any individual registrant is filed by such registrant solely on its own behalf. Each registrant makes no representation as to information relating exclusively to the other Registrants or the subsidiaries of CenterPoint Energy other than itself or its subsidiaries. Except as discussed in Note 11 to the Registrants’ Interim Condensed Financial Statements, no registrant has an obligation in respect of any other Registrant’s debt securities, and holders of such debt securities should not consider the financial resources or results of operations of any Registrant other than the obligor in making a decision with respect to such securities. Included in this combined Form 10-Q are the Interim Condensed Financial Statements of CenterPoint Energy, Houston Electric and CERC, which are referred to collectively as the Registrants. The Interim Condensed Financial Statements are unaudited, omit certain financial statement disclosures and should be read with the Registrants’ financial statements included in the Registrants’ combined 2022 Form 10-K. The Combined Notes to Interim Condensed Financial Statements apply to all Registrants and specific references to Houston Electric and CERC herein also pertain to CenterPoint Energy, unless otherwise indicated. Background. CenterPoint Energy, Inc. is a public utility holding company. On June 30, 2023, CenterPoint Energy completed the sale of its indirect subsidiary, Energy Systems Group, to an unaffiliated third party. For additional information, see Note 3. CenterPoint Energy completed the Restructuring on June 30, 2022, whereby the equity interests in Indiana Gas and VEDO, both subsidiaries it acquired in its acquisition of Vectren on February 1, 2019, were transferred from VUH to CERC Corp. SIGECO was not acquired by CERC and remains a subsidiary of VUH. On January 10, 2022, CERC Corp. completed the sale of its Arkansas and Oklahoma Natural Gas businesses. For additional information, see Note 3. As of September 30, 2023, CenterPoint Energy’s operating subsidiaries were as follows: •Houston Electric owns and operates electric transmission and distribution facilities in the Texas gulf coast area that includes the city of Houston; •CERC Corp. (i) directly owns and operates natural gas distribution systems in Louisiana, Minnesota, Mississippi and Texas, (ii) indirectly, through Indiana Gas and VEDO, owns and operates natural gas distribution systems in Indiana and Ohio, respectively, and (iii) owns and operates permanent pipeline connections through interconnects with various interstate and intrastate pipeline companies through CEIP; and •SIGECO provides energy delivery services to electric and natural gas customers located in and near Evansville in southwestern Indiana and owns and operates electric generation assets to serve its electric customers and optimizes those assets in the wholesale power market. As of September 30, 2023, CenterPoint Energy’s reportable segments were Electric, Natural Gas, and Corporate and Other. Houston Electric and CERC each consist of a single reportable segment. For a description of CenterPoint Energy’s reportable segments, see Note 15. As of September 30, 2023, CenterPoint Energy, Houston Electric and SIGECO had VIEs including the Bond Companies and the SIGECO Securitization Subsidiary, which are consolidated. The consolidated VIEs are wholly-owned, bankruptcy-remote, special purpose entities that were formed solely for the purpose of securitizing transition property or facilitating the securitization financing of qualified costs in the second quarter of 2023 associated with the completed retirement of SIGECO’s A.B. Brown coal generation facilities. CenterPoint Energy, through SIGECO, has a controlling financial interest in the SIGECO Securitization Subsidiary and is the VIE’s primary beneficiary. For further information, see Note 6. Creditors of CenterPoint Energy, Houston Electric and SIGECO have no recourse to any assets or revenues of the Bond Companies or the SIGECO Securitization Subsidiary, as applicable. The Securitization Bonds issued by these VIEs are payable only from and secured by transition or securitization property, as applicable, and the bondholders have no recourse to the general credit of CenterPoint Energy, Houston Electric or SIGECO. Basis of Presentation. The preparation of the Registrants’ financial statements in conformity with generally accepted accounting principles requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.The Interim Condensed Financial Statements reflect all normal recurring adjustments that are, in the opinion of management, necessary to present fairly the financial position, results of operations and cash flows for the respective periods. Amounts reported in the Condensed Statements of Consolidated Income are not necessarily indicative of amounts expected for a full-year period due to the effects of, among other things, (a) seasonal fluctuations in demand for energy, (b) changes in energy commodity prices, (c) timing of maintenance and other expenditures and (d) acquisitions and dispositions of businesses, assets and other interests.

Commitments and Contingencies

9 Months Ended

Sep. 30, 2023

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies

(a)Purchase Obligations (CenterPoint Energy and CERC)

Commitments include minimum purchase obligations related to CenterPoint Energy’s and CERC’s Natural Gas reportable segment and CenterPoint Energy’s Electric reportable segment. A purchase obligation is defined as an agreement to purchase goods or services that is enforceable and legally binding on the registrant and that specifies all significant terms, including: fixed or minimum quantities to be purchased; fixed, minimum or variable price provisions; and the approximate timing of the transaction. Contracts with minimum payment provisions have various quantity requirements and durations and are not classified as non-trading derivative assets and liabilities in CenterPoint Energy’s and CERC’s Condensed Consolidated Balance Sheets as of September 30, 2023 and December 31, 2022. These contracts meet an exception as “normal purchases contracts” or do not meet the definition of a derivative. Natural gas and coal supply commitments also include transportation contracts that do not meet the definition of a derivative.

On February 1, 2023, Indiana Electric entered into an amended and restated BTA to purchase the 191 MW Posey Solar project for a fixed purchase price over the anticipated 35-year life. On February 7, 2023, Indiana Electric filed a CPCN with the IURC to approve the amended BTA. With the passage of the IRA, Indiana Electric can now pursue PTCs for solar projects. Indiana Electric filed the updated CPCN with a request that project costs, net of PTCs, be recovered in rate base, through base rates or the CECA mechanism, depending on which provides more timely recovery. On September 6, 2023, the IURC issued an order approving the CPCN. The Posey Solar project is expected to be placed in service in 2025.

On January 11, 2023, the IURC issued an order approving the settlement agreement granting Indiana Electric a CPCN to purchase and acquire the 130 MW Pike County solar project through a BTA and approved the estimated cost. The IURC also designated the project as a clean energy project as well as approved the proposed levelized rate and associated ratemaking and accounting treatment. Due to inflationary pressures, the developer disclosed that costs have exceeded the agreed upon levels in the BTA. Once pricing is updated and parties determine whether to continue with the project, Indiana Electric may have to refile for approval of the project with the IURC, which could delay the in-service date from 2025 to 2026.

As of September 30, 2023, other than discussed below, undiscounted minimum purchase obligations are approximately:


	CenterPoint Energy						CERC
	Natural Gas Supply		Electric Supply (1)		Other (2)		Natural Gas Supply
	(in millions)
Remaining three months of 2023	$	220	$	51	$	71	$	218
2024	683		160		181		678
2025	588		492		39		584
2026	501		342		39		497
2027	425		105		—		421
2028	380		68		—		376
2029 and beyond	1,710		719		332		1,685

(1)CenterPoint Energy’s undiscounted minimum payment obligations related to PPAs with commitments ranging from 15 years to 25 years and its purchase commitments under its BTA in Posey County, Indiana and its BTA in Pike County, Indiana are included above.

(2)The undiscounted payment obligations relate primarily to technology hardware and software agreements.

Excluded from the table above are estimates for cash outlays from other PPAs through Indiana Electric that do not have minimum thresholds but do require payment when energy is generated by the provider. Costs arising from certain of these commitments are pass-through costs, generally collected dollar-for-dollar from retail customers through regulator-approved cost recovery mechanisms.

(b) Guarantees and Product Warranties (CenterPoint Energy)

On May 21, 2023, CenterPoint Energy, through Vectren Energy Services, entered into the Equity Purchase Agreement to sell Energy Systems Group. The sale closed on June 30, 2023. See Note 3 for further information.

In the normal course of business prior to the consummation of the transaction on June 30, 2023, CenterPoint Energy, primarily through Vectren, issued parent company level guarantees supporting Energy Systems Group’s obligations. When Energy Systems Group was wholly owned by CenterPoint Energy, these guarantees did not represent incremental consolidated obligations, but rather, these guarantees represented guarantees of Energy Systems Group’s obligations to allow it to conduct business without posting other forms of assurance. For those obligations where potential exposure can be estimated, management estimates the maximum exposure under these guarantees to be approximately $509 million as of September 30, 2023 and expects the exposure to decrease pro rata. This exposure primarily relates to energy savings guarantees on federal energy savings performance contracts. Other parent company level guarantees, certain of which do not contain a cap on potential liability, were issued prior to the sale of Energy Systems Group in support of federal operations and maintenance projects for which a maximum exposure cannot be estimated based on the nature of the projects.

Under the terms of the Equity Purchase Agreement, ESG Holdings Group must generally use reasonable best efforts to replace existing CenterPoint Energy guarantees with credit support provided by a party other than CenterPoint Energy as of and after the closing of the transaction. The Equity Purchase Agreement also requires certain protections to be provided for any damages incurred by CenterPoint Energy in relation to these guarantees not released by closing. No additional guarantees were provided by CenterPoint Energy in favor of Energy Systems Group subsequent to the closing of the sale on June 30, 2023.

While there can be no assurance that performance under any of these parent company guarantees will not be required in the future, CenterPoint Energy considers the likelihood of a material amount being incurred as remote. CenterPoint Energy believes that, from Energy Systems Group’s inception in 1994 to the closing of the sale of Energy Systems Group on June 30, 2023, Energy Systems Group had a history of generally meeting its performance obligations and energy savings guarantees and its installed products operated effectively. CenterPoint Energy recorded no amounts on its Condensed Consolidated Balance Sheets as of September 30, 2023 and December 31, 2022 related to its obligation under the outstanding guarantees.

(c)Legal, Environmental and Other Matters

Legal Matters

Litigation Related to the February 2021 Winter Storm Event. Various legal proceedings are still pending against numerous entities with respect to the February 2021 Winter Storm Event, including against CenterPoint Energy, Utility Holding, LLC, Houston Electric, and CERC. Like other Texas energy companies and TDUs, CenterPoint Energy and Houston Electric have become involved in certain investigations, litigation and other regulatory and legal proceedings regarding their efforts to restore power during the storm and their compliance with NERC, ERCOT and PUCT rules and directives. Additionally, like other natural gas market participants, CERC has been named in litigation alleging gas market manipulation.

CenterPoint Energy, Utility Holding, LLC, and Houston Electric, along with hundreds of other defendants (including ERCOT, power generation companies, other TDUs, natural gas producers, REPs, and other entities) have received claims and lawsuits filed by plaintiffs alleging wrongful death, personal injury, property damage and other injuries and damages.

Substantially all of the litigation is or will be consolidated in Texas state court in Harris County, Texas, as part of an MDL proceeding, with one case currently pending in justice court in Harris County. The judge overseeing the MDL issued an initial case management order and stayed all proceedings and discovery. Per the case management order, the judge entertained dispositive motions in five representative or “bellwether” cases and, in late January 2023, issued rulings on them. The judge ruled that ERCOT has sovereign immunity as a governmental entity and dismissed the suits against it. In a recent opinion in an unrelated matter, the Texas Supreme Court held that ERCOT is entitled to sovereign immunity. This ruling will apply to claims against ERCOT in the MDL. The MDL judge also dismissed all claims against the natural gas defendants (which lists of natural gas defendants incorrectly included Utility Holding, LLC), and the REP defendants and some causes of action against the other defendants. As to the TDU and generator defendants, the MDL judge dismissed some causes of action but denied the motions to dismiss claims for negligence, gross negligence, and nuisance, which denial the TDU defendants and generator defendants are asking the court of appeals to overturn. The court of appeals granted the request for oral argument in the TDU mandamus proceeding and heard oral argument on October 23, 2023. The MDL judge has allowed plaintiffs to file several motions related to the framework for preliminary discovery, but otherwise the cases remain stayed as the MDL judge addresses additional preliminary issues.

As of September 30, 2023, there are approximately 220 pending lawsuits that are in or will be added to the MDL proceeding related to the February 2021 Winter Storm Event, and CenterPoint Energy and Houston Electric, along with numerous other entities, have been named as defendants in approximately 155 of those lawsuits. A putative class action on behalf of everyone who received electric power via the ERCOT grid and sustained a power outage between February 10, 2021 and February 28, 2021 is also pending against CenterPoint Energy, Houston Electric, and numerous other defendants. Additionally, Utility Holding, LLC is currently named as a defendant in approximately five lawsuits in which CenterPoint Energy and/or Houston Electric are also named as defendants. CenterPoint Energy expects that the claims against Utility Holding, LLC will ultimately be dismissed in light of the judge’s initial rulings. CenterPoint Energy, Utility Holding, LLC, and Houston Electric intend to vigorously defend themselves against the claims raised.

CenterPoint Energy and Houston Electric have also responded to inquiries from the Texas Attorney General and the Galveston County District Attorney’s Office, and various other regulatory and governmental entities also conducted inquiries, investigations and other reviews of the February 2021 Winter Storm Event and the efforts made by various entities to prepare for, and respond to, the event, including the electric generation shortfall issues.

In February 2023, twelve lawsuits were filed in state district court in Harris County and Tom Green County, Texas, against dozens of gas market participants in Texas, including natural gas producers, processors, pipelines, marketers, sellers, traders, gas utilities, and financial institutions. Plaintiffs named CERC as one such defendant, along with “CenterPoint Energy Services, Inc.,” incorrectly identifying it as CERC’s parent company (CenterPoint Energy previously divested CES). One lawsuit filed in Harris County is a putative class action on behalf of two classes of electric and natural gas customers (those who experienced a loss of electricity and/or natural gas, and those who were charged securitization-related surcharges on a utility bill or were otherwise charged higher rates for electricity and/or gas during the February 2021 Winter Storm Event), potentially including millions of class members. Two other lawsuits (one filed in Harris County and one in Tom Green County) are brought by an entity that purports to be an assignee of claims by tens of thousands of persons and entities that have assigned claims to the plaintiff. These, and nine other similar lawsuits filed in Harris County, generally allege that the defendants engaged in gas market manipulation and price gouging, including by intentionally withholding, suppressing, or diverting supplies of natural gas in connection with the February 2021 Winter Storm Event, Winter Storm Elliott, and other severe weather conditions, and through financial market manipulation. Plaintiffs allege that this manipulation impacted gas supply and prices as well as the market, supply, and price of electricity in Texas and caused blackouts and other damage. Plaintiffs assert claims for tortious interference with existing contract, private nuisance, and unjust enrichment, and allege a broad array of injuries and damages,

including personal injury, property damage, and harm from certain costs being securitized and passed on to ratepayers. The lawsuits do not specify the amount of damages sought, but seek broad categories of actual, compensatory, statutory, consequential economic, and punitive damages; restitution and disgorgement; pre- and post-judgment interest; costs and attorneys’ fees; and other relief. As of September 30, 2023, most of the lawsuits have not been served, but the three cases in which defendants were served were tagged for transfer to the existing MDL proceeding referenced above. The plaintiffs in those three cases filed motions to remand the lawsuits back to their original trial courts and out of the MDL. On August 1, 2023, the judge overseeing the MDL denied the motions to remand. Plaintiffs’ joint motion for reconsideration of the MDL judge’s orders denying remand is pending before the MDL panel. Regardless of whether the cases remain within the MDL, CERC intends to vigorously defend itself against the claims raised, including by raising jurisdictional challenges to the plaintiffs’ claims.

To date, there have not been demands, quantification, disclosure or discovery of damages by any party to any of the above legal matters that are sufficient to enable CenterPoint Energy and its subsidiaries to estimate exposure. Given that, as well as the preliminary nature of the proceedings, the numerosity of parties and complexity of issues involved, and the uncertainties of litigation, CenterPoint Energy and its subsidiaries are unable to predict the outcome or consequences of any of the foregoing matters or to estimate a range of potential losses. CenterPoint Energy and its subsidiaries have general and excess liability insurance policies that provide coverage for third party bodily injury and property damage claims. Given the nature of certain of the recent allegations, however, it is possible that the insurers for third party bodily injury and property damage claims could dispute coverage for other types of damage that may be alleged by plaintiffs. CenterPoint Energy and its subsidiaries intend to continue to pursue any and all available insurance coverage for all of these matters.

Environmental Matters

MGP Sites. CenterPoint Energy, CERC and their predecessors, including predecessors of Vectren, operated MGPs in the past. The costs CenterPoint Energy or CERC, as applicable, expect to incur to fulfill their respective obligations are estimated by management using assumptions based on actual costs incurred, the timing of expected future payments and inflation factors, among others. While CenterPoint Energy and CERC have recorded obligations for all costs which are probable and estimable, including amounts they are presently obligated to incur in connection with activities at these sites, it is possible that future events may require remedial activities which are not presently foreseen, and those costs may not be subject to PRP or insurance recovery.

(i)Minnesota MGPs (CenterPoint Energy and CERC). With respect to certain Minnesota MGP sites, CenterPoint Energy and CERC have completed state-ordered remediation and continue state-ordered monitoring and water treatment. CenterPoint Energy and CERC recorded a liability as reflected in the table below for continued monitoring and any future remediation required by regulators in Minnesota.

(ii)Indiana MGPs (CenterPoint Energy and CERC). In the Indiana Gas service territory, the existence, location and certain general characteristics of 26 gas manufacturing and storage sites have been identified for which CenterPoint Energy and CERC may have some remedial responsibility. A remedial investigation/feasibility study was completed at one of the sites under an agreed upon order between Indiana Gas and the IDEM, and a Record of Decision was issued by the IDEM in January 2000. The remaining sites have been submitted to the IDEM’s VRP. CenterPoint Energy has also identified its involvement in five manufactured gas plant sites in SIGECO’s service territory, all of which are currently enrolled in the IDEM’s VRP. CenterPoint Energy is currently conducting some level of remedial activities, including groundwater monitoring at certain sites.

(iii)Other MGPs (CenterPoint Energy and CERC). In addition to the Minnesota and Indiana sites, the EPA and other regulators have investigated MGP sites that were owned or operated by CenterPoint Energy or CERC or may have been owned by one of their former affiliates.

Total costs that may be incurred in connection with addressing these sites cannot be determined at this time. The estimated accrued costs are limited to CenterPoint Energy’s and CERC’s share of the remediation efforts and are therefore net of exposures of other PRPs. The estimated range of possible remediation costs for the sites for which CenterPoint Energy and CERC believe they may have responsibility was based on remediation continuing for the minimum time frame given in the table below.


	September 30, 2023
	CenterPoint Energy		CERC
	(in millions, except years)
Amount accrued for remediation	$	17	$	15
Minimum estimated remediation costs	12		11
Maximum estimated remediation costs	51		44
Minimum years of remediation	5		5
Maximum years of remediation	50		50

The cost estimates are based on studies of a site or industry average costs for remediation of sites of similar size. The actual remediation costs will depend on the number of sites to be remediated, the participation of other PRPs, if any, and the remediation methods used.

CenterPoint Energy and CERC do not expect the ultimate outcome of these matters to have a material adverse effect on the financial condition, results of operations or cash flows of either CenterPoint Energy or CERC.

Asbestos. Some facilities owned by the Registrants or their predecessors contain or have contained asbestos insulation and other asbestos-containing materials. The Registrants are from time to time named, along with numerous others, as defendants in lawsuits filed by a number of individuals who claim injury due to exposure to asbestos, and the Registrants anticipate that additional claims may be asserted in the future. Although their ultimate outcome cannot be predicted at this time, the Registrants do not expect these matters, either individually or in the aggregate, to have a material adverse effect on their financial condition, results of operations or cash flows.

CCR Rule (CenterPoint Energy). In April 2015, the EPA finalized its CCR Rule, which regulates ash as non-hazardous material under the RCRA. The final rule allows beneficial reuse of ash, and the majority of the ash generated by Indiana Electric’s generating plants will continue to be reused. In July 2018, the EPA released its final CCR Rule Phase I Reconsideration which extended the deadline to October 31, 2020 for ceasing placement of ash in ponds that exceed groundwater protections standards or that fail to meet location restrictions. In August 2019, the EPA proposed additional “Part A” amendments to its CCR Rule with respect to beneficial reuse of ash and other materials. Further “Part B” amendments, which related to alternate liners for CCR surface impoundments and the surface impoundment closure process, were published in March 2020. The Part A amendments were finalized in August 2020 and extended the deadline to cease placement of ash in ponds to April 11, 2021, discussed further below. The Part A amendments do not restrict Indiana Electric’s current beneficial reuse of its fly ash. CenterPoint Energy evaluated the Part B amendments to determine potential impacts and determined that the Part B amendments did not have an impact on its current plans.

Indiana Electric has three ash ponds, two at the F.B. Culley facility (Culley East and Culley West) and one at the A.B. Brown facility. Under the existing CCR Rule, Indiana Electric is required to perform integrity assessments, including ground water monitoring, at its F.B. Culley and A.B. Brown generating stations. The ground water studies are necessary to determine the remaining service life of the ponds and whether a pond must be retrofitted with liners or closed in place. Indiana Electric’s Warrick generating unit is not included in the scope of the CCR Rule as this unit has historically been part of a larger generating station that predominantly serves an adjacent industrial facility. Preliminary groundwater monitoring indicates potential groundwater impacts very close to Indiana Electric’s ash impoundments, and further analysis is ongoing. The CCR Rule required companies to complete location restriction determinations by October 18, 2018. Indiana Electric completed its evaluation and determined that one F.B. Culley pond (Culley East) and the A.B. Brown pond fail the aquifer placement location restriction. As a result of this failure, Indiana Electric was required to cease disposal of new ash in the ponds and commence closure of the ponds by April 11, 2021, unless approved for an extension. CenterPoint Energy filed timely extension requests available under the CCR Rule that would allow Indiana Electric to continue to use the ponds through October 15, 2023. The EPA is still reviewing industry extension requests, including CenterPoint Energy’s extension request for the Culley East pond; however, the Culley East pond was taken out of service on May 1, 2023, and the A.B. Brown pond on October 7, 2023, so there is no longer a need for an extension at either the Culley East or A.B. Brown ash ponds. Indiana Electric received an order from the IURC approving recovery in rates of costs associated with the closure of the Culley West pond, which has already completed closure activities. On August 14, 2019, Indiana Electric filed its petition with the IURC for recovery of costs

associated with the closure of the A.B. Brown ash pond, which would include costs associated with the excavation and recycling of ponded ash. This petition was subsequently approved by the IURC on May 13, 2020. On October 28, 2020, the IURC approved Indiana Electric’s ECA proceeding, which included the initiation of recovery of the federally mandated project costs.

In July 2018, Indiana Electric filed a Complaint for Damages and Declaratory Relief against its insurers seeking reimbursement of defense, investigation and pond closure costs incurred to comply with the CCR Rule, and has since reached confidential settlement agreements with its insurers. The proceeds of these settlements will offset costs that have been and will be incurred to close the ponds. On November 1, 2022, Indiana Electric filed for a CPCN to recover federally mandated costs associated with closure of the Culley East Pond, its third and final ash pond. Indiana Electric is also seeking accounting and ratemaking relief for the project, and on June 8, 2023, Indiana Electric filed a revised CPCN for recovery of the federally mandated ash pond costs. The project costs are estimated to be approximately $52 million, inclusive of overheads.

On May 18, 2023, the EPA proposed amendments to the CCR rule that would, if finalized, apply closure requirements for inactive surface impoundments located at inactive facilities (legacy CCR surface impoundments) and CCR management units located at regulated CCR facilities. CenterPoint Energy is currently reviewing this proposal.

As of September 30, 2023, CenterPoint Energy has recorded an approximate $116 million ARO, which represents the discounted value of future cash flow estimates to close the ponds at A.B. Brown and F.B. Culley. This estimate is subject to change due to the contractual arrangements; continued assessments of the ash, closure methods, and the timing of closure; implications of Indiana Electric’s generation transition plan; changing environmental regulations; and proceeds received from the settlements in the aforementioned insurance proceeding. In addition to these AROs, Indiana Electric also anticipates equipment purchases of between $60 million and $80 million to complete the A.B. Brown closure project.

Clean Water Act Permitting of Groundwater Discharges. In April 2020, the U.S. Supreme Court issued an opinion providing that indirect discharges via groundwater or other non-point sources are subject to permitting and liability under the Clean Water Act when they are the functional equivalent of a direct discharge. However, on May 25, 2023, in Sackett v. Environmental Protection Agency, the U.S. Supreme Court issued an opinion redefining the term “waters of the United States,” which may limit the scope of the April 2020 opinion. The Registrants are evaluating the extent to which these decisions will affect Clean Water Act permitting requirements and/or liability for their operations.

Other Environmental. From time to time, the Registrants identify the presence of environmental contaminants during operations or on property where their predecessors have conducted operations. Other such sites involving contaminants may be identified in the future. The Registrants have and expect to continue to remediate any identified sites consistent with state and federal legal obligations. From time to time, the Registrants have received notices, and may receive notices in the future, from regulatory authorities or others regarding status as a PRP in connection with sites found to require remediation due to the presence of environmental contaminants. In addition, the Registrants have been, or may be, named from time to time as defendants in litigation related to such sites. Although the ultimate outcome of such matters cannot be predicted at this time, the Registrants do not expect these matters, either individually or in the aggregate, to have a material adverse effect on their financial condition, results of operations or cash flows.

Other Proceedings

The Registrants are involved in other legal, environmental, tax and regulatory proceedings before various courts, regulatory commissions and governmental agencies regarding matters arising in the ordinary course of business. From time to time, the Registrants are also defendants in legal proceedings with respect to claims brought by various plaintiffs against broad groups of participants in the energy industry. Some of these proceedings involve substantial amounts. The Registrants regularly analyze current information and, as necessary, provide accruals for probable and reasonably estimable liabilities on the eventual disposition of these matters. The Registrants do not expect the disposition of these matters to have a material adverse effect on the Registrants’ financial condition, results of operations or cash flows.

Equity Securities and Indexed Debt Securities (ZENS) (CenterPoint Energy) - Schedule of Securities Classified as Trading (Details) - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022
Debt and Equity Securities, FV-NI [Line Items]
Carrying Value	$ 566	$ 510
AT&T Common
Debt and Equity Securities, FV-NI [Line Items]
Balance of investment owned (in shares)	10,212,945	10,212,945
Carrying Value	$ 153	$ 188
Charter Common
Debt and Equity Securities, FV-NI [Line Items]
Balance of investment owned (in shares)	872,503	872,503
Carrying Value	$ 384	$ 296
WBD Common
Debt and Equity Securities, FV-NI [Line Items]
Balance of investment owned (in shares)	2,470,685	2,470,685
Carrying Value	$ 27	$ 23
Other
Debt and Equity Securities, FV-NI [Line Items]
Carrying Value	$ 2	$ 3

- Definition

Fair value of investment in security owned.

+ References

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-URI https://asc.fasb.org//1943274/2147479617/946-210-S99-1

Reference 15: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.6-04(2)(a))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479617/946-210-S99-1

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-Paragraph 1
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-URI https://asc.fasb.org//1943274/2147479617/946-210-S99-1

Reference 17: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
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-Paragraph 1
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Reference 22: http://www.xbrl.org/2003/role/disclosureRef
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Reference 23: http://www.xbrl.org/2003/role/disclosureRef
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Reference 25: http://www.xbrl.org/2003/role/disclosureRef
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Reference 28: http://www.xbrl.org/2003/role/disclosureRef
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+ Details

Commitments and Contingencies - Narrative (Details) $ in Millions			9 Months Ended
	Jun. 08, 2023 USD ($)	Feb. 01, 2023 MW	Sep. 30, 2023 USD ($) lawsuit day gasManufacturingAndStorageSite ashPond	Feb. 28, 2023 lawsuit class	Jan. 11, 2023 MW
Long-Term Purchase Commitment [Line Items]
Guarantor obligations, maximum exposure, undiscounted \| $			$ 509
Number of owned coal ash ponds \| ashPond			3
Estimated project costs \| $	$ 52
F.B. Culley
Long-Term Purchase Commitment [Line Items]
Number of owned coal ash ponds \| ashPond			2
A.B. Brown
Long-Term Purchase Commitment [Line Items]
Number of owned coal ash ponds \| ashPond			1
F.B. Culley East
Long-Term Purchase Commitment [Line Items]
Number of owned coal ash ponds \| ashPond			1
Indiana Gas Service Territory
Long-Term Purchase Commitment [Line Items]
Environmental remediation number of sites with potential remedial responsibility \| gasManufacturingAndStorageSite			26
SIGECO
Long-Term Purchase Commitment [Line Items]
Environmental remediation number of sites with potential remedial responsibility \| gasManufacturingAndStorageSite			5
CERC \| Indiana Gas Service Territory
Long-Term Purchase Commitment [Line Items]
Environmental remediation number of sites with potential remedial responsibility \| gasManufacturingAndStorageSite			26
Indiana Electric
Long-Term Purchase Commitment [Line Items]
Asset retirement obligation \| $			$ 116
Indiana Electric \| Minimum
Long-Term Purchase Commitment [Line Items]
Estimated capital expenditure to clean ash ponds \| $			60
Indiana Electric \| Maximum
Long-Term Purchase Commitment [Line Items]
Estimated capital expenditure to clean ash ponds \| $			$ 80
Loss from Catastrophes
Long-Term Purchase Commitment [Line Items]
Pending lawsuits				12
Loss from Catastrophes \| Harris County
Long-Term Purchase Commitment [Line Items]
Pending lawsuits				9
Texas State Court in Harris County, Texas \| Pending Litigation
Long-Term Purchase Commitment [Line Items]
Pending lawsuits			1
Bellwether Cases \| Pending Litigation
Long-Term Purchase Commitment [Line Items]
Pending lawsuits			5
February 2021 Winter Storm Event \| Utility Holding, LLC
Long-Term Purchase Commitment [Line Items]
Pending lawsuits \| day			5
February 2021 Winter Storm Event \| Loss from Catastrophes
Long-Term Purchase Commitment [Line Items]
Pending lawsuits			220
February 2021 Winter Storm Event \| Loss from Catastrophes \| CenterPoint Energy and Houston Electric
Long-Term Purchase Commitment [Line Items]
Pending lawsuits			155
Harris County vs. CERC - Putative \| Loss from Catastrophes
Long-Term Purchase Commitment [Line Items]
Pending lawsuits				1
Number of classes of electric and natural gas customers \| class				2
Other Texas Lawsuits Brought By Assignee vs. Company \| Loss from Catastrophes
Long-Term Purchase Commitment [Line Items]
Pending lawsuits				2
Other Texas Lawsuits Brought By Assignee vs. Company \| Loss from Catastrophes \| Harris County
Long-Term Purchase Commitment [Line Items]
Pending lawsuits				1
Other Texas Lawsuits Brought By Assignee vs. Company \| Loss from Catastrophes \| Tom Green County
Long-Term Purchase Commitment [Line Items]
Pending lawsuits				1
Multi District Litigation \| Cases Transferred to the Multi District Litigation (MDL)
Long-Term Purchase Commitment [Line Items]
Pending lawsuits			3
Multi District Litigation \| Motions to Remand Lawsuits Out Of MDL And Back Into Original Trial Courts
Long-Term Purchase Commitment [Line Items]
Pending lawsuits			3
Posey Solar
Long-Term Purchase Commitment [Line Items]
Solar array generating capacity (in MW) \| MW		191
Solar array assets, useful life		35 years
Pike Solar
Long-Term Purchase Commitment [Line Items]
Solar array generating capacity (in MW) \| MW					130

Reportable Segments

9 Months Ended

Sep. 30, 2023

Segment Reporting [Abstract]

Reportable Segments

The Registrants’ determination of reportable segments considers the strategic operating units under which its CODM manages sales, allocates resources and assesses performance of various products and services to wholesale or retail customers in differing regulatory environments. Each Registrant’s CODM views net income as the measure of profit or loss for the reportable segments.

As of September 30, 2023, reportable segments by Registrant were as follows:

CenterPoint Energy

•CenterPoint Energy’s Electric reportable segment consisted of electric transmission and distribution services in the Texas gulf coast area in the ERCOT region and electric transmission and distribution services primarily to southwestern Indiana and includes power generation and wholesale power operations in the MISO region.

•CenterPoint Energy’s Natural Gas reportable segment consists of (i) intrastate natural gas sales to, and natural gas transportation and distribution for residential, commercial, industrial and institutional customers in Indiana, Louisiana, Minnesota, Mississippi, Ohio and Texas; and (ii) permanent pipeline connections through interconnects with various interstate and intrastate pipeline companies through CEIP.

•CenterPoint Energy’s Corporate and Other category consists of energy performance contracting and sustainable infrastructure services through Energy Systems Group through June 30, 2023, the date of the sale of Energy Systems Group, and corporate operations which support all of the business operations of CenterPoint Energy.

Houston Electric

•Houston Electric’s single reportable segment consisted of electric transmission services to transmission service customers in the ERCOT region and distribution services to REPs serving the Texas gulf coast area.

CERC

•CERC’s single reportable segment following the Restructuring consisted of (i) intrastate natural gas sales to, and natural gas transportation and distribution for, residential, commercial, industrial and institutional customers in Indiana, Louisiana, Minnesota, Mississippi, Ohio and Texas; and (ii) permanent pipeline connections through interconnects with various interstate and intrastate pipeline companies through CEIP.

Financial data for reportable segments is as follows:

CenterPoint Energy


	Three Months Ended September 30,
	2023			2022
	Revenues from External Customers			Net Income (Loss)		Revenues from External Customers			Net Income (Loss)
	(in millions)
Electric	$	1,261	(1)	$	290	$	1,146	(1)	$	234
Natural Gas	597			27		692			(10)
Corporate and Other	2			(35)		65			(22)
Consolidated	$	1,860		$	282	$	1,903		$	202



	Nine Months Ended September 30,
	2023			2022
	Revenues from External Customers			Net Income (Loss)		Revenues from External Customers			Net Income
	(in millions)
Electric	$	3,250	(1)	$	593	$	3,092	(1)	$	489
Natural Gas	3,136			296		3,334			416
Corporate and Other	128			(164)		184			18

Consolidated	$	6,514		$	725	$	6,610		$	923

(1)Houston Electric revenues from major external customers are as follows (CenterPoint Energy and Houston Electric):


	Three Months Ended September 30,				Nine Months Ended September 30,
	2023		2022		2023		2022
	(in millions)
Affiliates of NRG	$	370	$	327	$	826	$	797
Affiliates of Vistra Energy Corp.	177		153		403		372


	Total Assets
	September 30, 2023		December 31, 2022
	(in millions)
Electric	$	21,130	$	19,024
Natural Gas	16,802		18,043

Corporate and Other, net of eliminations (1)	1,069		1,479

Consolidated	$	39,001	$	38,546

(1)Total assets included pension and other postemployment-related regulatory assets of $379 million and $405 million as of September 30, 2023 and December 31, 2022, respectively.

Houston Electric

Houston Electric consists of a single reportable segment; therefore, a tabular reportable segment presentation has not been included.

CERC

CERC consists of a single reportable segment; therefore, a tabular reportable segment presentation has not been included.

- Definition

The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 22
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482810/280-10-50-22

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 15
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-URI https://asc.fasb.org//1943274/2147482810/280-10-50-15

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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-SubTopic 10
-Name Accounting Standards Codification
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-URI https://asc.fasb.org//1943274/2147482810/280-10-50-31

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
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-Paragraph 32
-Subparagraph (d)
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-URI https://asc.fasb.org//1943274/2147482810/280-10-50-32

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
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-URI https://asc.fasb.org//1943274/2147482810/280-10-50-42

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
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-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482810/280-10-50-32

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
-Section 50
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-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482810/280-10-50-40

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
-Publisher FASB
-URI https://asc.fasb.org//280/tableOfContent

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 26
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482810/280-10-50-26

Reference 10: http://www.xbrl.org/2003/role/disclosureRef
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-SubTopic 10
-Name Accounting Standards Codification
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-Paragraph 34
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482810/280-10-50-34

Reference 11: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 41
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482810/280-10-50-41

Reference 12: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 21
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482810/280-10-50-21

Reference 13: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 21
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482810/280-10-50-21

Reference 14: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 32
-Subparagraph (e)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482810/280-10-50-32

+ Details

Short-term Borrowings and Long-term Debt - Schedule of Revolving Credit Facilities (Details) $ in Millions	9 Months Ended
	Sep. 30, 2023 USD ($)
Debt Instrument [Line Items]
Aggregate principal amount	$ 4,000
Houston Electric
Debt Instrument [Line Items]
Aggregate principal amount	300
Restoration costs	100
CERC
Debt Instrument [Line Items]
Aggregate principal amount	$ 1,050
Line of Credit \| Maximum
Debt Instrument [Line Items]
Percentage on limitation of debt to total capitalization under covenant amended (in hundredths) (as a percent)	70.00%
Line of Credit \| Houston Electric
Debt Instrument [Line Items]
Ratio of indebtedness to net capital (as a percent)	0.675
Percentage on limitation of debt to total capitalization under covenant (as a percent)	52.40%
Consecutive period for system restoration costs to exceed $100 million (in months)	12 months
Line of Credit \| Houston Electric \| Maximum
Debt Instrument [Line Items]
Percentage on limitation of debt to total capitalization under covenant amended (in hundredths) (as a percent)	70.00%
Line of Credit \| CERC
Debt Instrument [Line Items]
Ratio of indebtedness to net capital (as a percent)	0.650
Percentage on limitation of debt to total capitalization under covenant (as a percent)	38.20%
Line of Credit \| SOFR Plus \| Houston Electric
Debt Instrument [Line Items]
Basis spread on variable rate (as a percent)	1.25%
Line of Credit \| SOFR Plus \| CERC
Debt Instrument [Line Items]
Basis spread on variable rate (as a percent)	1.125%
Parent Company
Debt Instrument [Line Items]
Aggregate principal amount	$ 2,400
Parent Company \| Line of Credit
Debt Instrument [Line Items]
Ratio of indebtedness to net capital (as a percent)	0.650
Percentage on limitation of debt to total capitalization under covenant (as a percent)	59.20%
Parent Company \| Line of Credit \| SOFR Plus
Debt Instrument [Line Items]
Basis spread on variable rate (as a percent)	1.50%
SIGECO
Debt Instrument [Line Items]
Aggregate principal amount	$ 250
SIGECO \| Line of Credit
Debt Instrument [Line Items]
Ratio of indebtedness to net capital (as a percent)	0.650
Percentage on limitation of debt to total capitalization under covenant (as a percent)	43.80%
SIGECO \| Line of Credit \| SOFR Plus
Debt Instrument [Line Items]
Basis spread on variable rate (as a percent)	1.125%

Leases

9 Months Ended

Sep. 30, 2023

Leases [Abstract]

Leases

Leases In 2021, Houston Electric entered into a temporary short-term lease and long-term leases for mobile generation. The short-term lease agreement allowed Houston Electric to take delivery of TEEEF assets on a short-term basis with an initial term ending on September 30, 2022 and extended until December 31, 2022. As of December 31, 2022, the short-term lease agreement has expired and all mobile generation assets are leased under the long-term lease agreement. Per Houston Electric’s short-term lease accounting policy election, a ROU asset and lease liability are not reflected on Houston Electric’s Condensed

Consolidated Balance Sheets. Expenses associated with the short-term lease, including carrying costs, are deferred to a regulatory asset and totaled, net of amounts recovered in rates, $102 million and $103 million as of September 30, 2023 and December 31, 2022, respectively.

The long-term lease agreement includes up to 505 MW of TEEEF, all of which was delivered as of December 31, 2022, triggering lease commencement at delivery, with an initial term ending in 2029 for all TEEEF leases. These assets were previously available under the short-term lease agreement. Houston Electric derecognized the finance lease liability when the extinguishment criteria in Topic 405 - Liabilities was achieved. Per the terms of the agreement, lease payments are due and made in full by Houston Electric upon taking possession of the asset, relieving substantially all of the associated finance lease liability at that time. The remaining finance lease liability associated with the commenced long-term TEEEF agreement was not significant as of September 30, 2023 and December 31, 2022 and relates to removal costs that will be incurred at the end of the lease term. As of September 30, 2023, Houston Electric has secured a first lien on the assets leased under the prepayment agreement, except for assets with lease payments totaling $101 million. The $101 million prepayment is being held in an escrow account, not controlled by Houston Electric, and the funds will be released when a first lien can be secured for Houston Electric. Expenses associated with the long-term lease, including depreciation expense on the right of use asset and carrying costs, are deferred to a regulatory asset and totaled, net of amounts recovered in rates, $117 million and $60 million as of September 30, 2023 and December 31, 2022, respectively. The long-term lease agreement contains a termination clause that can be exercised in the event of material adverse regulatory actions. If the right to terminate is elected, subject to the satisfaction of certain conditions, 75% of Houston Electric’s prepaid lease costs that is attributable to the period from the effective date of termination to the end of the lease term would be refunded. In December 2022, the long-term lease agreement was amended to include a disallowance reimbursement clause that can be exercised in the event that any regulatory proceeding or settlement agreement results in a disallowance of Houston Electric’s recovery of deferred costs under either the long-term lease agreement, short-term lease agreement or any other quantifiable adverse financial impact to Houston Electric. If the disallowance reimbursement clause is exercised, 85% of such disallowance up to $53 million would be paid to Houston Electric. Any disallowance greater than $53 million would remain subject to the 75% limit set forth in the termination clause. For further discussion of the regulatory impacts, see Note 6.

Houston Electric will also incur variable costs throughout the lease term for the operation and maintenance of the generators. Lease costs, including variable and ROU asset amortization costs, are deferred to Regulatory assets as incurred as a recoverable cost under the 2021 Texas legislation. See Note 6 for further information regarding recovery of these deferred costs.

The components of lease cost, included in Operation and maintenance expense on the Registrants’ respective Condensed Statements of Consolidated Income, are as follows:


	Three Months Ended September 30, 2023						Three Months Ended September 30, 2022
	CenterPoint Energy		Houston Electric		CERC		CenterPoint Energy		Houston Electric		CERC
	(in millions)
Operating lease cost	$	1	$	1	$	—	$	2	$	—	$	—
Short-term lease cost	15		14		—		39		39		1

Total lease cost (1)	$	16	$	15	$	—	$	41	$	39	$	1

	Nine Months Ended September 30, 2023						Nine Months Ended September 30, 2022
	CenterPoint Energy		Houston Electric		CERC		CenterPoint Energy		Houston Electric		CERC
	(in millions)
Operating lease cost	$	4	$	2	$	1	$	4	$	—	$	1
Short-term lease cost	28		27		—		123		122		1

Total lease cost (1)	$	32	$	29	$	1	$	127	$	122	$	2

Lease income was as follows:


	Three Months Ended September 30, 2023						Three Months Ended September 30, 2022
	CenterPoint Energy		Houston Electric		CERC		CenterPoint Energy		Houston Electric		CERC
	(in millions)
Operating lease income	$	2	$	1	$	1	$	1	$	1	$	1
Variable lease income	—		—		—		—		—		—
Total lease income	$	2	$	1	$	1	$	1	$	1	$	1

	Nine Months Ended September 30, 2023						Nine Months Ended September 30, 2022
	CenterPoint Energy		Houston Electric		CERC		CenterPoint Energy		Houston Electric		CERC
	(in millions)
Operating lease income	$	5	$	1	$	3	$	4	$	1	$	2
Variable lease income	1		—		—		1		—		—
Total lease income	$	6	$	1	$	3	$	5	$	1	$	2

Supplemental balance sheet information related to leases was as follows:


	September 30, 2023									December 31, 2022
	CenterPoint Energy			Houston Electric			CERC			CenterPoint Energy			Houston Electric			CERC
	(in millions, except lease term and discount rate)
Assets:
Operating ROU assets (1)	$	15		$	6		$	4		$	19		$	6		$	5
Finance ROU assets (2)	550			550			—			621			621			—
Total leased assets	$	565		$	556		$	4		$	640		$	627		$	5

Liabilities:
Current operating lease liability (3)	$	4		$	1		$	1		$	5		$	1		$	2
Non-current operating lease liability (4)	11			5			3			14			5			4
Total leased liabilities (5)	$	15		$	6		$	4		$	19		$	6		$	6

Weighted-average remaining lease term (in years) - operating leases	5.7			4.1			3.3			4.3			4.8			3.9
Weighted-average discount rate - operating leases	3.94		%	4.09		%	3.60		%	3.80		%	4.01		%	3.58		%
Weighted-average remaining lease term (in years) - finance leases	5.8			5.8			—			6.5			6.5			—
Weighted-average discount rate - finance leases	3.60		%	3.60		%	—			3.60		%	3.60		%	—

(1)Reported within Other assets in the Registrants’ respective Condensed Consolidated Balance Sheets.

(2)Reported within Property, Plant and Equipment in the Registrants’ respective Condensed Consolidated Balance Sheets. Finance lease assets are recorded net of accumulated amortization.

(3)Reported within Current other liabilities in the Registrants’ respective Condensed Consolidated Balance Sheets.

(4)Reported within Other liabilities in the Registrants’ respective Condensed Consolidated Balance Sheets.

As of September 30, 2023, finance lease liabilities were not significant to the Registrants. As of September 30, 2023, maturities of operating lease liabilities were as follows:


	CenterPoint Energy		Houston Electric		CERC
	(in millions)
Remainder of 2023	$	2	$	—	$	1
2024	3		2		2
2025	3		2		1
2026	3		2		1
2027	2		1		—
2028	2		—		—
2029 and beyond	1		—		—
Total lease payments	16		7		5
Less: Interest	1		1		1
Present value of lease liabilities	$	15	$	6	$	4

As of September 30, 2023, future minimum finance lease payments were not significant to the Registrants. As of September 30, 2023, maturities of undiscounted operating lease payments to be received are as follows:


	CenterPoint Energy		Houston Electric		CERC
	(in millions)
Remainder of 2023	$	2	$	—	$	1
2024	6		1		5
2025	8		1		5
2026	8		—		5
2027	7		—		5
2028	7		—		5
2029 and beyond	173		—		170
Total lease payments to be received	$	211	$	2	$	196

Other information related to leases is as follows:


	Three Months Ended September 30, 2023						Three Months Ended September 30, 2022
	CenterPoint Energy		Houston Electric		CERC		CenterPoint Energy		Houston Electric		CERC
	(in millions)
Operating cash flows from operating leases included in the measurement of lease liabilities	$	1	$	—	$	—	$	1	$	—	$	—
Financing cash flows from finance leases included in the measurement of lease liabilities	—		—		—		47		47		—

	Nine Months Ended September 30, 2023						Nine Months Ended September 30, 2022
	CenterPoint Energy		Houston Electric		CERC		CenterPoint Energy		Houston Electric		CERC
	(in millions)
Operating cash flows from operating leases included in the measurement of lease liabilities	$	4	$	1	$	1	$	4	$	—	$	1
Financing cash flows from finance leases included in the measurement of lease liabilities	—		—		—		218		218		—

See Note 16 for information on ROU assets obtained in exchange for operating lease liabilities.

Leases

The components of lease cost, included in Operation and maintenance expense on the Registrants’ respective Condensed Statements of Consolidated Income, are as follows:


	Three Months Ended September 30, 2023						Three Months Ended September 30, 2022
	CenterPoint Energy		Houston Electric		CERC		CenterPoint Energy		Houston Electric		CERC
	(in millions)
Operating lease cost	$	1	$	1	$	—	$	2	$	—	$	—
Short-term lease cost	15		14		—		39		39		1

Total lease cost (1)	$	16	$	15	$	—	$	41	$	39	$	1

	Nine Months Ended September 30, 2023						Nine Months Ended September 30, 2022
	CenterPoint Energy		Houston Electric		CERC		CenterPoint Energy		Houston Electric		CERC
	(in millions)
Operating lease cost	$	4	$	2	$	1	$	4	$	—	$	1
Short-term lease cost	28		27		—		123		122		1

Total lease cost (1)	$	32	$	29	$	1	$	127	$	122	$	2

Lease income was as follows:


	Three Months Ended September 30, 2023						Three Months Ended September 30, 2022
	CenterPoint Energy		Houston Electric		CERC		CenterPoint Energy		Houston Electric		CERC
	(in millions)
Operating lease income	$	2	$	1	$	1	$	1	$	1	$	1
Variable lease income	—		—		—		—		—		—
Total lease income	$	2	$	1	$	1	$	1	$	1	$	1

	Nine Months Ended September 30, 2023						Nine Months Ended September 30, 2022
	CenterPoint Energy		Houston Electric		CERC		CenterPoint Energy		Houston Electric		CERC
	(in millions)
Operating lease income	$	5	$	1	$	3	$	4	$	1	$	2
Variable lease income	1		—		—		1		—		—
Total lease income	$	6	$	1	$	3	$	5	$	1	$	2

Supplemental balance sheet information related to leases was as follows:


	September 30, 2023									December 31, 2022
	CenterPoint Energy			Houston Electric			CERC			CenterPoint Energy			Houston Electric			CERC
	(in millions, except lease term and discount rate)
Assets:
Operating ROU assets (1)	$	15		$	6		$	4		$	19		$	6		$	5
Finance ROU assets (2)	550			550			—			621			621			—
Total leased assets	$	565		$	556		$	4		$	640		$	627		$	5

Liabilities:
Current operating lease liability (3)	$	4		$	1		$	1		$	5		$	1		$	2
Non-current operating lease liability (4)	11			5			3			14			5			4
Total leased liabilities (5)	$	15		$	6		$	4		$	19		$	6		$	6

Weighted-average remaining lease term (in years) - operating leases	5.7			4.1			3.3			4.3			4.8			3.9
Weighted-average discount rate - operating leases	3.94		%	4.09		%	3.60		%	3.80		%	4.01		%	3.58		%
Weighted-average remaining lease term (in years) - finance leases	5.8			5.8			—			6.5			6.5			—
Weighted-average discount rate - finance leases	3.60		%	3.60		%	—			3.60		%	3.60		%	—

(1)Reported within Other assets in the Registrants’ respective Condensed Consolidated Balance Sheets.

(2)Reported within Property, Plant and Equipment in the Registrants’ respective Condensed Consolidated Balance Sheets. Finance lease assets are recorded net of accumulated amortization.

(3)Reported within Current other liabilities in the Registrants’ respective Condensed Consolidated Balance Sheets.

(4)Reported within Other liabilities in the Registrants’ respective Condensed Consolidated Balance Sheets.

As of September 30, 2023, finance lease liabilities were not significant to the Registrants. As of September 30, 2023, maturities of operating lease liabilities were as follows:


	CenterPoint Energy		Houston Electric		CERC
	(in millions)
Remainder of 2023	$	2	$	—	$	1
2024	3		2		2
2025	3		2		1
2026	3		2		1
2027	2		1		—
2028	2		—		—
2029 and beyond	1		—		—
Total lease payments	16		7		5
Less: Interest	1		1		1
Present value of lease liabilities	$	15	$	6	$	4


	CenterPoint Energy		Houston Electric		CERC
	(in millions)
Remainder of 2023	$	2	$	—	$	1
2024	6		1		5
2025	8		1		5
2026	8		—		5
2027	7		—		5
2028	7		—		5
2029 and beyond	173		—		170
Total lease payments to be received	$	211	$	2	$	196

Other information related to leases is as follows:


	Three Months Ended September 30, 2023						Three Months Ended September 30, 2022
	CenterPoint Energy		Houston Electric		CERC		CenterPoint Energy		Houston Electric		CERC
	(in millions)
Operating cash flows from operating leases included in the measurement of lease liabilities	$	1	$	—	$	—	$	1	$	—	$	—
Financing cash flows from finance leases included in the measurement of lease liabilities	—		—		—		47		47		—

	Nine Months Ended September 30, 2023						Nine Months Ended September 30, 2022
	CenterPoint Energy		Houston Electric		CERC		CenterPoint Energy		Houston Electric		CERC
	(in millions)
Operating cash flows from operating leases included in the measurement of lease liabilities	$	4	$	1	$	1	$	4	$	—	$	1
Financing cash flows from finance leases included in the measurement of lease liabilities	—		—		—		218		218		—

See Note 16 for information on ROU assets obtained in exchange for operating lease liabilities.

Leases

The components of lease cost, included in Operation and maintenance expense on the Registrants’ respective Condensed Statements of Consolidated Income, are as follows:


	Three Months Ended September 30, 2023						Three Months Ended September 30, 2022
	CenterPoint Energy		Houston Electric		CERC		CenterPoint Energy		Houston Electric		CERC
	(in millions)
Operating lease cost	$	1	$	1	$	—	$	2	$	—	$	—
Short-term lease cost	15		14		—		39		39		1

Total lease cost (1)	$	16	$	15	$	—	$	41	$	39	$	1

	Nine Months Ended September 30, 2023						Nine Months Ended September 30, 2022
	CenterPoint Energy		Houston Electric		CERC		CenterPoint Energy		Houston Electric		CERC
	(in millions)
Operating lease cost	$	4	$	2	$	1	$	4	$	—	$	1
Short-term lease cost	28		27		—		123		122		1

Total lease cost (1)	$	32	$	29	$	1	$	127	$	122	$	2

Lease income was as follows:


	Three Months Ended September 30, 2023						Three Months Ended September 30, 2022
	CenterPoint Energy		Houston Electric		CERC		CenterPoint Energy		Houston Electric		CERC
	(in millions)
Operating lease income	$	2	$	1	$	1	$	1	$	1	$	1
Variable lease income	—		—		—		—		—		—
Total lease income	$	2	$	1	$	1	$	1	$	1	$	1

	Nine Months Ended September 30, 2023						Nine Months Ended September 30, 2022
	CenterPoint Energy		Houston Electric		CERC		CenterPoint Energy		Houston Electric		CERC
	(in millions)
Operating lease income	$	5	$	1	$	3	$	4	$	1	$	2
Variable lease income	1		—		—		1		—		—
Total lease income	$	6	$	1	$	3	$	5	$	1	$	2

Supplemental balance sheet information related to leases was as follows:


	September 30, 2023									December 31, 2022
	CenterPoint Energy			Houston Electric			CERC			CenterPoint Energy			Houston Electric			CERC
	(in millions, except lease term and discount rate)
Assets:
Operating ROU assets (1)	$	15		$	6		$	4		$	19		$	6		$	5
Finance ROU assets (2)	550			550			—			621			621			—
Total leased assets	$	565		$	556		$	4		$	640		$	627		$	5

Liabilities:
Current operating lease liability (3)	$	4		$	1		$	1		$	5		$	1		$	2
Non-current operating lease liability (4)	11			5			3			14			5			4
Total leased liabilities (5)	$	15		$	6		$	4		$	19		$	6		$	6

Weighted-average remaining lease term (in years) - operating leases	5.7			4.1			3.3			4.3			4.8			3.9
Weighted-average discount rate - operating leases	3.94		%	4.09		%	3.60		%	3.80		%	4.01		%	3.58		%
Weighted-average remaining lease term (in years) - finance leases	5.8			5.8			—			6.5			6.5			—
Weighted-average discount rate - finance leases	3.60		%	3.60		%	—			3.60		%	3.60		%	—

(1)Reported within Other assets in the Registrants’ respective Condensed Consolidated Balance Sheets.

(2)Reported within Property, Plant and Equipment in the Registrants’ respective Condensed Consolidated Balance Sheets. Finance lease assets are recorded net of accumulated amortization.

(3)Reported within Current other liabilities in the Registrants’ respective Condensed Consolidated Balance Sheets.

(4)Reported within Other liabilities in the Registrants’ respective Condensed Consolidated Balance Sheets.

As of September 30, 2023, finance lease liabilities were not significant to the Registrants. As of September 30, 2023, maturities of operating lease liabilities were as follows:


	CenterPoint Energy		Houston Electric		CERC
	(in millions)
Remainder of 2023	$	2	$	—	$	1
2024	3		2		2
2025	3		2		1
2026	3		2		1
2027	2		1		—
2028	2		—		—
2029 and beyond	1		—		—
Total lease payments	16		7		5
Less: Interest	1		1		1
Present value of lease liabilities	$	15	$	6	$	4


	CenterPoint Energy		Houston Electric		CERC
	(in millions)
Remainder of 2023	$	2	$	—	$	1
2024	6		1		5
2025	8		1		5
2026	8		—		5
2027	7		—		5
2028	7		—		5
2029 and beyond	173		—		170
Total lease payments to be received	$	211	$	2	$	196

Other information related to leases is as follows:


	Three Months Ended September 30, 2023						Three Months Ended September 30, 2022
	CenterPoint Energy		Houston Electric		CERC		CenterPoint Energy		Houston Electric		CERC
	(in millions)
Operating cash flows from operating leases included in the measurement of lease liabilities	$	1	$	—	$	—	$	1	$	—	$	—
Financing cash flows from finance leases included in the measurement of lease liabilities	—		—		—		47		47		—

	Nine Months Ended September 30, 2023						Nine Months Ended September 30, 2022
	CenterPoint Energy		Houston Electric		CERC		CenterPoint Energy		Houston Electric		CERC
	(in millions)
Operating cash flows from operating leases included in the measurement of lease liabilities	$	4	$	1	$	1	$	4	$	—	$	1
Financing cash flows from finance leases included in the measurement of lease liabilities	—		—		—		218		218		—

See Note 16 for information on ROU assets obtained in exchange for operating lease liabilities.

Condensed Statements of Consolidated Income (Unaudited) - Houston Electric - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Revenues	$ 1,860	$ 1,903	$ 6,514	$ 6,610
Expenses:
Operation and maintenance	648	670	1,990	2,020
Depreciation and amortization	374	329	1,042	974
Taxes other than income taxes	127	119	395	401
Total	1,342	1,519	5,075	5,398
Operating Income	518	384	1,439	1,212
Other Income (Expense):
Interest expense and other finance charges	(176)	(116)	(489)	(375)
Interest expense on Securitization Bonds	(7)	(3)	(11)	(11)
Other income, net	13	8	39	25
Total	(168)	(107)	(469)	39
Income Before Income Taxes	350	277	970	1,251
Income tax expense	68	75	245	328
Net Income	282	202	725	923
Houston Electric
Revenues	1,083	935	2,784	2,562
Expenses:
Operation and maintenance	409	395	1,190	1,193
Depreciation and amortization	210	175	555	511
Taxes other than income taxes	70	65	201	196
Total	689	635	1,946	1,900
Operating Income	394	300	838	662
Other Income (Expense):
Interest expense and other finance charges	(69)	(50)	(185)	(148)
Interest expense on Securitization Bonds	(2)	(3)	(6)	(11)
Other income, net	5	5	22	13
Total	(66)	(48)	(169)	(146)
Income Before Income Taxes	328	252	669	516
Income tax expense	72	52	147	108
Net Income	$ 256	$ 200	$ 522	$ 408

Condensed Statements of Consolidated Cash Flows (Unaudited) - Houston Electric - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Cash Flows from Operating Activities:
Net income	$ 725	$ 923
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	1,042	974
Deferred income taxes	94	26
Changes in other assets and liabilities:
Accounts receivable and unbilled revenues, net	528	95
Inventory	63	(224)
Accounts payable	(443)	(119)
Taxes receivable	(47)	1
Net regulatory assets and liabilities	1,102	148
Other current assets and liabilities	(41)	(199)
Other non-current assets and liabilities	59	34
Other operating activities, net	9	72
Net cash provided by operating activities	3,069	1,325
Cash Flows from Investing Activities:
Capital expenditures	(3,323)	(3,079)
Other investing activities, net	(12)	73
Net cash used in investing activities	(3,190)	(229)
Cash Flows from Financing Activities:
Proceeds from long-term debt and term loans	5,574	2,089
Payments of long-term debt	(2,613)	(1,519)
Payment of debt issuance costs	(50)	(26)
Payment of obligation for finance lease	0	(218)
Other financing activities, net	(25)	(7)
Net cash provided by (used in) financing activities	168	(1,220)
Net Increase (Decrease) in Cash, Cash Equivalents and Restricted Cash	47	(124)
Cash, Cash Equivalents and Restricted Cash at Beginning of Period	91	254
Cash, Cash Equivalents and Restricted Cash at End of Period	138	130
Houston Electric
Cash Flows from Operating Activities:
Net income	522	408
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	555	511
Deferred income taxes	117	44
Changes in other assets and liabilities:
Accounts receivable and unbilled revenues, net	(211)	(159)
Accounts receivable/payable–affiliated companies	(9)	(35)
Inventory	(18)	(116)
Accounts payable	(23)	(11)
Taxes receivable	(8)	0
Net regulatory assets and liabilities	(113)	(40)
Other current assets and liabilities	18	(43)
Other non-current assets and liabilities	44	(5)
Other operating activities, net	(16)	(9)
Net cash provided by operating activities	858	545
Cash Flows from Investing Activities:
Capital expenditures	(1,724)	(1,727)
Increase in notes receivable–affiliated companies	(400)	(360)
Other investing activities, net	(8)	34
Net cash used in investing activities	(2,132)	(2,053)
Cash Flows from Financing Activities:
Proceeds from long-term debt and term loans	1,398	1,589
Payments of long-term debt	(77)	(444)
Decrease in notes payable–affiliated companies	(642)	(512)
Dividend to parent	(239)	(141)
Contribution from parent	885	1,143
Payment of debt issuance costs	(12)	(15)
Payment of obligation for finance lease	0	(218)
Other financing activities, net	(1)	0
Net cash provided by (used in) financing activities	1,312	1,402
Net Increase (Decrease) in Cash, Cash Equivalents and Restricted Cash	38	(106)
Cash, Cash Equivalents and Restricted Cash at Beginning of Period	88	233
Cash, Cash Equivalents and Restricted Cash at End of Period	$ 126	$ 127

Income Taxes

9 Months Ended

Sep. 30, 2023

Income Tax Disclosure [Abstract]

Income Taxes

The Registrants reported the following effective tax rates:


	Three Months Ended September 30,				Nine Months Ended September 30,
	2023		2022		2023		2022
CenterPoint Energy (1) (2)	19	%	27	%	25	%	26	%

Houston Electric (3)	22	%	21	%	22	%	21	%
CERC (4) (5)	25	%	170	%	22	%	25	%

associated with the sale of the Natural Gas business in Arkansas and Oklahoma in 2022 and an increase in EDIT amortization of the net regulatory liability for EDIT.

CenterPoint Energy reported a net uncertain tax liability, inclusive of interest and penalties, of $29 million as of September 30, 2023. The Registrants believe that it is reasonably possible that there will be no change in unrecognized tax benefits, including penalties and interest, in the next 12 months as a result of a lapse of statutes on older exposures, a tax settlement, and/or a resolution of open audits.

Tax Audits and Settlements. Tax years through 2018 have been audited and settled with the IRS for CenterPoint Energy. The 2019 and 2020 tax years are before IRS Appeals. For the 2021-2023 tax years, the Registrants are participants in the IRS’s Compliance Assurance Process. Vectren’s pre-Merger 2014-2019 tax years have been audited and settled with the IRS.

- Definition

The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480990/946-20-50-13

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(h)(2))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480678/235-10-S99-1

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-Name Accounting Standards Codification
-Publisher FASB
-URI https://asc.fasb.org//740/tableOfContent

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 14
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482685/740-10-50-14

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 21
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482685/740-10-50-21

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 270
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482526/740-270-50-1

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 17
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482685/740-10-50-17

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SAB TOPIC 6.I.5.Q1)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479360/740-10-S99-1

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 2
-Subparagraph (SAB Topic 11.C)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479360/740-10-S99-2

Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482603/740-30-50-2

+ Details

Supplemental Disclosure of Cash Flow Information (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022	Dec. 31, 2021
Cash Payments/Receipts:
Interest, net of capitalized interest	$ 521	$ 376
Income tax payments, net	200	340
Non-cash transactions:
Accounts payable related to capital expenditures	264	333
ROU assets obtained in exchange for lease liabilities	3	1
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents [Abstract]
Cash and cash equivalents	120		$ 74
Restricted cash included in Prepaid expenses and other current assets	18		17
Total cash, cash equivalents and restricted cash shown in Condensed Statements of Consolidated Cash Flows	138	130	91	$ 254
Bond Companies and Securitization Bond Company
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents [Abstract]
Cash and cash equivalents	118		75
Houston Electric
Cash Payments/Receipts:
Interest, net of capitalized interest	211	188
Income tax payments, net	12	113
Non-cash transactions:
Accounts payable related to capital expenditures	137	197
ROU assets obtained in exchange for lease liabilities	1	0
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents [Abstract]
Cash and cash equivalents	113		75
Restricted cash included in Prepaid expenses and other current assets	13		13
Total cash, cash equivalents and restricted cash shown in Condensed Statements of Consolidated Cash Flows	126	127	88	233
Houston Electric \| Bond Companies
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents [Abstract]
Cash and cash equivalents	113		75
CERC
Cash Payments/Receipts:
Interest, net of capitalized interest	153	67
Income tax payments, net	113	3
Non-cash transactions:
Accounts payable related to capital expenditures	122	145
ROU assets obtained in exchange for lease liabilities	0	0
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents [Abstract]
Cash and cash equivalents	1		0
Restricted cash included in Prepaid expenses and other current assets	0		0
Total cash, cash equivalents and restricted cash shown in Condensed Statements of Consolidated Cash Flows	$ 1	$ 1	$ 0	$ 15

Supplemental Disclosure of Cash Flow Information (Tables)

9 Months Ended

Sep. 30, 2023

Supplemental Cash Flow Elements [Abstract]

Schedule of Cash Flow, Supplemental Disclosures

The table below provides supplemental disclosure of cash flow information:


	Nine Months Ended September 30,
	2023						2022
	CenterPoint Energy		Houston Electric		CERC		CenterPoint Energy		Houston Electric		CERC
	(in millions)
Cash Payments/Receipts:
Interest, net of capitalized interest	$	521	$	211	$	153	$	376	$	188	$	67
Income tax payments, net	200		12		113		340		113		3
Non-cash transactions:
Accounts payable related to capital expenditures	264		137		122		333		197		145
ROU assets obtained in exchange for lease liabilities (1)	3		1		—		1		—		—

(1) Excludes ROU assets obtained through prepayment of the lease liabilities. See Note 19.


	September 30, 2023						December 31, 2022
	CenterPoint Energy		Houston Electric		CERC		CenterPoint Energy		Houston Electric		CERC
	(in millions)
Cash and cash equivalents (1)	$	120	$	113	$	1	$	74	$	75	$	—
Restricted cash included in Prepaid expenses and other current assets	18		13		—		17		13		—

Total cash, cash equivalents and restricted cash shown in Condensed Statements of Consolidated Cash Flows	$	138	$	126	$	1	$	91	$	88	$	—

Derivative Instruments

9 Months Ended

Sep. 30, 2023

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Derivative Instruments

The Registrants are exposed to various market risks. These risks arise from transactions entered into in the normal course of business. The Registrants utilize derivative instruments such as swaps and options to mitigate the impact of changes in commodity prices, weather and interest rates on operating results and cash flows.

(a)Non-Trading Activities

Commodity Derivative Instruments (CenterPoint Energy and CERC). CenterPoint Energy and CERC, through the Indiana Utilities they respectively own, enter into certain derivative instruments to mitigate the effects of commodity price movements. Outstanding derivative instruments designated as economic hedges at the Indiana Utilities hedge long-term variable rate natural gas purchases. The Indiana Utilities have authority to refund and recover mark-to-market gains and losses associated with hedging natural gas purchases, and thus the gains and losses on derivatives are deferred in a regulatory liability or asset. All other financial instruments do not qualify or are not designated as cash flow or fair value hedges.

Interest Rate Risk Derivative Instruments. From time to time, the Registrants may enter into interest rate derivatives that are designated as economic or cash flow hedges. The objective of these hedges is to offset risk associated with interest rates borne by the Registrants in connection with an anticipated future fixed rate debt offering or other exposure to variable rate debt. The Indiana Utilities have authority to refund and recover mark-to-market gains and losses associated with hedging financing activity, and thus the gains and losses on derivatives are deferred in a regulatory liability or asset.

The table below summarizes CenterPoint Energy’s outstanding interest rate hedging activity:

September 30, 2023

December 31, 2022

Hedging Classification

Notional Principal

CenterPoint
Energy

(in millions)

Economic hedge (1)

—

(1)Relates to interest rate derivative instruments at SIGECO that terminated on May 1, 2023.

In May 2023, CenterPoint Energy entered into a forward interest rate agreement having an aggregate notional amount of $75 million, which agreement was amended in June 2023. The agreement was executed to hedge, in part, volatility in the 3-year U.S treasury rate by reducing CenterPoint Energy’s exposure to variability in cash flows related to interest payments of CenterPoint Energy’s $400 million issuance of fixed rate debt in August 2023. The forward interest rate agreement was designated as a cash flow hedge. The realized gains and losses associated with the agreement were immaterial.

In September 2023, SIGECO entered into two forward interest rate agreements having aggregate notional amounts of $50 million and $38 million. The agreements were executed to hedge, in part, volatility in the 5-year and 7-year U.S. treasury rates, respectively, by reducing SIGECO’s exposure to variability in cash flows related to interest payments of SIGECO’s $470 million issuance of fixed rate debt in October 2023. The forward interest rate agreements were designated as cash flow hedges. The realized gains and losses associated with the agreements were immaterial.

Weather Normalization (CenterPoint Energy and CERC). CenterPoint Energy and CERC have weather normalization or other rate mechanisms that largely mitigate the impact of weather on Natural Gas in Indiana, Louisiana, Mississippi, Minnesota and Ohio, as applicable. CenterPoint Energy’s and CERC’s Natural Gas in Texas and CenterPoint Energy’s electric operations in Texas and Indiana do not have such mechanisms. As a result, fluctuations from normal weather may have a positive or negative effect on CenterPoint Energy’s and CERC’s Natural Gas’ results in Texas and on CenterPoint Energy’s electric operations’ results in its Texas and Indiana service territories. The Registrants do not currently enter into weather hedges.

(b)Derivative Fair Values and Income Statement Impacts (CenterPoint Energy and CERC)

Fair Value of Derivative Instruments and Hedged Items

CenterPoint Energy


		September 30, 2023				December 31, 2022
	Balance Sheet Location	Derivative Assets Fair Value		Derivative Liabilities Fair Value		Derivative Assets Fair Value		Derivative Liabilities Fair Value




Derivatives not designated as hedging instruments:		(in millions)
Natural gas derivatives (1)	Current Assets: Non-trading derivative assets	$	1	$	—	$	9	$	—
Natural gas derivatives (1)	Other Assets: Non-trading derivative assets	—		—		2		—

Interest rate derivatives	Current Assets: Non-trading derivative assets	—		—		1		—



Indexed debt securities derivative (2)	Current Liabilities	—		630		—		578

Total		$	1	$	630	$	12	$	578

CERC


		September 30, 2023				December 31, 2022
	Balance Sheet Location	Derivative Assets Fair Value		Derivative Liabilities Fair Value		Derivative Assets Fair Value		Derivative Liabilities Fair Value




Derivatives not designated as hedging instruments:		(in millions)
Natural gas derivatives (1)	Current Assets: Non-trading derivative assets	$	1	$	—	$	7	$	—
Natural gas derivatives (1)	Other Assets: Non-trading derivative assets	—		—		2		—






Total		$	1	$	—	$	9	$	—

Income Statement Impact of Hedge Accounting Activity (CenterPoint Energy)


		Three Months Ended September 30,				Nine Months Ended September 30,
	Income Statement Location	2023		2022		2023		2022
Derivatives not designated as hedging instruments:		(in millions)
Indexed debt securities derivative (1)	Gain (loss) on indexed debt securities	$	(47)	$	210	$	(52)	$	381

(1)The indexed debt securities derivative is recorded at fair value and changes in the fair value are recorded in CenterPoint Energy’s Condensed Statements of Consolidated Income.

Certain of CenterPoint Energy’s derivative instruments contain provisions that require CenterPoint Energy’s debt to maintain an investment grade credit rating on its long-term unsecured unsubordinated debt from S&P and Moody’s. If CenterPoint Energy’s debt were to fall below investment grade, it would be in violation of these provisions, and the counterparties to the derivative instruments could request immediate payment. As of September 30, 2023 and December 31, 2022, all derivatives with credit risk-related contingent features were in an asset position.

Equity (Details) - USD ($) $ / shares in Units, $ in Millions		1 Months Ended		3 Months Ended		9 Months Ended
	Sep. 01, 2023	Feb. 28, 2022	Jul. 31, 2021	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022	Jul. 20, 2021
Class of Stock [Line Items]
Preferred stock, outstanding (in shares)				0		0		800,000
Preferred stock				$ 0		$ 0		$ 790
Preferred Stock Dividends and Other Adjustments [Abstract]
Preferred stock dividend requirement				26	$ 13	50	$ 37
Total income allocated to preferred shareholders				26	13	50	37
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning Balance				(32)	(85)	(31)	(64)
Net deferred gain from cash flow hedges				2	0	2	0
Prior service cost				1	0	0	1
Actuarial losses				0	2	0	4
Settlement				0	1	0	14
Tax benefit (expense)				0	9	0	5
Net current period other comprehensive income (loss)				3	2	2	(19)
Ending Balance				(29)	(83)	(29)	(83)
Other Pension, Postretirement and Supplemental Plans
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Remeasurement of pension and other postretirement plans				0	(10)	0	(44)
Houston Electric
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning Balance				0	0	0	0
Net deferred gain from cash flow hedges				0	0	0	0
Prior service cost				0	0	0	0
Actuarial losses				0	0	0	0
Settlement				0	0	0	0
Tax benefit (expense)				0	0	0	0
Net current period other comprehensive income (loss)				0	0	0	0
Ending Balance				0	0	0	0
Houston Electric \| Other Pension, Postretirement and Supplemental Plans
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Remeasurement of pension and other postretirement plans				0	0	0	0
CERC
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning Balance				15	10	16	10
Net deferred gain from cash flow hedges				0	0	0	0
Prior service cost				0	0	(1)	0
Actuarial losses				0	0	0	0
Settlement				0	0	0	0
Tax benefit (expense)				0	0	0	0
Net current period other comprehensive income (loss)				0	0	(1)	0
Ending Balance				15	10	15	10
CERC \| Other Pension, Postretirement and Supplemental Plans
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Remeasurement of pension and other postretirement plans				$ 0	$ 0	$ 0	$ 0
Chief Executive Officer
Preferred Stock Dividends and Other Adjustments [Abstract]
Retention incentive agreement, shares issued (in shares)									1,000,000
Chief Executive Officer \| Restricted Stock Units (RSUs)
Preferred Stock Dividends and Other Adjustments [Abstract]
Restricted stock units granted (in shares)		400,000	400,000
Remaining shares available to be awarded (in shares)			200,000
Common Stock
Class of Stock [Line Items]
Common stock, dividends declared per share (in dollars per share)				$ 0.390	$ 0.360	$ 0.580	$ 0.530
Common Stock dividends paid per share (in dollars per share)				0.190	0.180	0.570	0.520
Series A Preferred Stock
Class of Stock [Line Items]
Preferred stock, dividends declared (in dollars per share)				30.625	30.625	30.625	30.625
Preferred stock dividends paid per share (in dollars per share)				30.625	$ 30.625	61.250	$ 61.250
Redemption of Series A Preferred Stock (in shares)	800,000
Preferred stock redemption price (per share)	$ 1,000
Preferred stock, liquidation preference (in dollars per share)				$ 1,000		$ 1,000
Preferred stock, outstanding (in shares)				0		0		800,000
Preferred stock				$ 0		$ 0		$ 790
Preferred Stock Dividends and Other Adjustments [Abstract]
Preferred stock dividend requirement				$ 26	$ 13	$ 50	$ 37
Preferred Stock
Class of Stock [Line Items]
Preferred stock, outstanding (in shares)				0		0		800,000
Preferred stock				$ 0		$ 0		$ 790

Divestitures (CenterPoint Energy and CERC) - Divestitures Narrative (Details) mi in Thousands, $ in Millions			3 Months Ended		9 Months Ended		12 Months Ended
	May 21, 2023 USD ($)	Apr. 29, 2021 USD ($) mi	Sep. 30, 2023 USD ($)	Sep. 30, 2022 USD ($)	Sep. 30, 2023 USD ($)	Sep. 30, 2022 USD ($)	Dec. 31, 2022 USD ($)	May 31, 2022 USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain (loss) on sale			$ 0	$ 0	$ (12)	$ 303
Miles of pipeline (in miles) \| mi		17
Transition services agreement charges			0	10	1	29
Transition services agreement, accounts receivable			0		0		$ 1
CERC
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from divestitures, net of cash divested					0	2,075
Gain (loss) on sale			$ 0	$ 0	0	$ 557
Disposal Group, Held-for-sale or Disposed of by Sale, Not Discontinued Operations \| Energy Systems Group
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Equity purchase agreement, purchase price	$ 157
Proceeds from divestitures, net of cash divested	$ 154
Gain (loss) on sale					(12)
Transaction costs					3
Current tax expense of divestiture					$ 33
Disposal Group, Held-for-sale or Disposed of by Sale, Not Discontinued Operations \| Arkansas and Oklahoma Natural Gas Businesses
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from divestitures, net of cash divested		$ 2,150
Gain (loss) on sale							303
Transaction costs							59
Recovery of costs		$ 425
Receivables, net								$ 15
Disposal Group, Held-for-sale or Disposed of by Sale, Not Discontinued Operations \| Arkansas and Oklahoma Natural Gas Businesses \| CERC
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain (loss) on sale							557
Transaction costs							$ 59
Receivables, net								$ 15

Employee Benefit Plans

9 Months Ended

Sep. 30, 2023

Retirement Benefits [Abstract]

Employee Benefit Plans

Pension Benefits (CenterPoint Energy)


	Three Months Ended September 30,				Nine Months Ended September 30,
	2023		2022		2023		2022
	(in millions)
Service cost (1)	$	6	$	7	$	19	$	23
Interest cost (2)	19		20		57		52
Expected return on plan assets (2)	(19)		(21)		(57)		(69)

Amortization of net loss (2)	7		8		21		22
Settlement cost (2) (3)	—		8		—		38

Net periodic cost	$	13	$	22	$	40	$	66

(2)Amounts presented in the table above are included in Other income, net in CenterPoint Energy’s Condensed Statements of Consolidated Income, net of regulatory deferrals.

Postretirement Benefits


	Three Months Ended September 30,
	2023						2022
	CenterPoint Energy		Houston Electric		CERC		CenterPoint Energy		Houston Electric		CERC
	(in millions)
Service cost (1)	$	—	$	—	$	—	$	—	$	—	$	1
Interest cost (2)	3		1		1		3		1		1
Expected return on plan assets (2)	(1)		(1)		—		(1)		(1)		(1)
Amortization of prior service credit (2)	(1)		(1)		1		(1)		(1)		—
Amortization of net loss (2)	(2)		(1)		(1)		(1)		(1)		—




Net periodic cost (benefit)	$	(1)	$	(2)	$	1	$	—	$	(2)	$	1

	Nine Months Ended September 30,
	2023						2022
	CenterPoint Energy		Houston Electric		CERC		CenterPoint Energy		Houston Electric		CERC
	(in millions)
Service cost (1)	$	1	$	—	$	—	$	1	$	—	$	1
Interest cost (2)	9		4		3		7		3		3
Expected return on plan assets (2)	(4)		(3)		—		(3)		(3)		(1)
Amortization of prior service cost (credit) (2)	(2)		(4)		2		(2)		(3)		1
Amortization of net loss (2)	(6)		(3)		(2)		(3)		(2)		(1)




Net periodic cost (benefit)	$	(2)	$	(6)	$	3	$	—	$	(5)	$	3

(2)Amounts presented in the tables above are included in Other income (expense), net in each of the Registrants’ respective Condensed Statements of Consolidated Income, net of regulatory deferrals.

The table below reflects the expected contributions to be made to the pension and postretirement benefit plans during 2023:


	CenterPoint Energy		Houston Electric		CERC
	(in millions)
Expected contribution to pension plans during 2023	$	31	$	—	$	—
Expected contribution to postretirement benefit plans in 2023	8		1		4

The table below reflects the contributions made to the pension and postretirement benefit plans:


	Three Months Ended September 30, 2023						Nine Months Ended September 30, 2023
	CenterPoint Energy		Houston Electric		CERC		CenterPoint Energy		Houston Electric		CERC
	(in millions)
Pension plans (1)	$	26	$	—	$	—	$	30	$	—	$	—
Postretirement benefit plans	1		—		1		5		—		3

(1)A discretionary contribution in the amount of $24 million was made in September 2023.

- Definition

The entire disclosure for retirement benefits.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 715
-SubTopic 70
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480794/715-70-50-1

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Topic 715
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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Reference 14: http://www.xbrl.org/2003/role/disclosureRef
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-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480266/715-60-50-3

+ Details

Derivative Instruments - Narrative (Details) $ in Millions	1 Months Ended
Derivative Instruments - Narrative (Details) $ in Millions	Sep. 30, 2023 USD ($) Agreement	Aug. 31, 2023 USD ($)	Oct. 31, 2023 USD ($)	Jun. 30, 2023 USD ($)
CenterPoint Energy
Derivative [Line Items]
Debt instrument, face amount		$ 400
CenterPoint Energy \| 3-Year Rate
Derivative [Line Items]
Forward interest rate derivative notional amount				$ 75
U.S. treasury rate term (in years)		3 years
SIGECO
Derivative [Line Items]
Number of instruments held \| Agreement	2
SIGECO \| 5-Year Rate
Derivative [Line Items]
Forward interest rate derivative notional amount	$ 50
U.S. treasury rate term (in years)	5 years
SIGECO \| 7-Year Rate
Derivative [Line Items]
Forward interest rate derivative notional amount	$ 38
U.S. treasury rate term (in years)	7 years
SIGECO \| Subsequent Event
Derivative [Line Items]
Debt instrument, face amount			$ 470

Condensed Statements of Consolidated Comprehensive Income (Unaudited) - Houston Electric - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Net income	$ 282	$ 202	$ 725	$ 923
Comprehensive income (loss)	285	204	727	904
Houston Electric
Net income	256	200	522	408
Comprehensive income (loss)	$ 256	$ 200	$ 522	$ 408

- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

+ References

+ Details

Pay vs Performance Disclosure - USD ($) $ in Millions	3 Months Ended		9 Months Ended
Pay vs Performance Disclosure - USD ($) $ in Millions	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Pay vs Performance Disclosure
Net income	$ 282	$ 202	$ 725	$ 923

- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

+ References

+ Details

Commitments and Contingencies (Tables)

9 Months Ended

Sep. 30, 2023

Commitments and Contingencies Disclosure [Abstract]

Schedule of Long-term Purchase Commitment

As of September 30, 2023, other than discussed below, undiscounted minimum purchase obligations are approximately:


	CenterPoint Energy						CERC
	Natural Gas Supply		Electric Supply (1)		Other (2)		Natural Gas Supply
	(in millions)
Remaining three months of 2023	$	220	$	51	$	71	$	218
2024	683		160		181		678
2025	588		492		39		584
2026	501		342		39		497
2027	425		105		—		421
2028	380		68		—		376
2029 and beyond	1,710		719		332		1,685

(2)The undiscounted payment obligations relate primarily to technology hardware and software agreements.

Schedule of Environmental Loss Contingencies by Site


	September 30, 2023
	CenterPoint Energy		CERC
	(in millions, except years)
Amount accrued for remediation	$	17	$	15
Minimum estimated remediation costs	12		11
Maximum estimated remediation costs	51		44
Minimum years of remediation	5		5
Maximum years of remediation	50		50

Condensed Statements of Consolidated Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Statement of Comprehensive Income [Abstract]
Net income	$ 282	$ 202	$ 725	$ 923
Other comprehensive income (loss):
Adjustment to pension and other postretirement plans (net of tax expense (benefit) of $-0-, $(9), $-0- and $(5))	1	2	0	(20)
Net deferred gain from cash flow hedges (net of tax of $-0-, $-0-, $-0- and $-0-)	2	0	2	0
Reclassification of deferred loss from cash flow hedges realized in net income (net of tax of $-0-, $-0-, $-0- and $-0-)	0	0	0	1
Total	3	2	2	(19)
Comprehensive income (loss)	285	204	727	904
Income allocated to preferred shareholders	26	13	50	37
Comprehensive income available to common shareholders	$ 259	$ 191	$ 677	$ 867

Divestitures (CenterPoint Energy and CERC) (Tables)

9 Months Ended

Sep. 30, 2023

Discontinued Operations and Disposal Groups [Abstract]

Schedule of Disposal Groups, Including Discontinued Operations

The pre-tax loss for Energy Systems Group, excluding interest and corporate allocations, included in CenterPoint Energy’s Condensed Statements of Consolidated Income is as follows:


	Three Months Ended September 30,				Nine Months Ended September 30,
	2023		2022		2023		2022
	(in millions)
Loss from Continuing Operations Before Income Taxes	$	—	$	(1)	$	(4)	$	(5)


	Three Months Ended September 30, 2022		Nine Months Ended September 30, 2022 (1)
	(in millions)
Income from Continuing Operations Before Income Taxes	$	—	$	9

(1)Reflects January 1, 2022 to January 9, 2022 results only due to the sale of the Arkansas and Oklahoma Natural Gas businesses.

- Definition

Tabular disclosure of information related to a disposal group. Includes, but is not limited to, a discontinued operation, disposal classified as held-for-sale or disposed of by means other than sale or disposal of an individually significant component.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-SubTopic 10
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+ Details

Reportable Segments (Tables)

9 Months Ended

Sep. 30, 2023

Segment Reporting [Abstract]

Schedule of Segment Reporting Information, by Segment

Financial data for reportable segments is as follows:

CenterPoint Energy


	Three Months Ended September 30,
	2023			2022
	Revenues from External Customers			Net Income (Loss)		Revenues from External Customers			Net Income (Loss)
	(in millions)
Electric	$	1,261	(1)	$	290	$	1,146	(1)	$	234
Natural Gas	597			27		692			(10)
Corporate and Other	2			(35)		65			(22)
Consolidated	$	1,860		$	282	$	1,903		$	202



	Nine Months Ended September 30,
	2023			2022
	Revenues from External Customers			Net Income (Loss)		Revenues from External Customers			Net Income
	(in millions)
Electric	$	3,250	(1)	$	593	$	3,092	(1)	$	489
Natural Gas	3,136			296		3,334			416
Corporate and Other	128			(164)		184			18

Consolidated	$	6,514		$	725	$	6,610		$	923


	Total Assets
	September 30, 2023		December 31, 2022
	(in millions)
Electric	$	21,130	$	19,024
Natural Gas	16,802		18,043

Corporate and Other, net of eliminations (1)	1,069		1,479

Consolidated	$	39,001	$	38,546

(1)Total assets included pension and other postemployment-related regulatory assets of $379 million and $405 million as of September 30, 2023 and December 31, 2022, respectively.

Schedule of Revenue by Major Customers by Reporting Segments

Houston Electric revenues from major external customers are as follows (CenterPoint Energy and Houston Electric):


	Three Months Ended September 30,				Nine Months Ended September 30,
	2023		2022		2023		2022
	(in millions)
Affiliates of NRG	$	370	$	327	$	826	$	797
Affiliates of Vistra Energy Corp.	177		153		403		372

Condensed Statements of Consolidated Cash Flows (Unaudited) - CERC - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Cash Flows from Operating Activities:
Net income	$ 725	$ 923
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	1,042	974
Deferred income taxes	94	26
Loss (gain) on divestitures	12	(303)
Changes in other assets and liabilities:
Accounts receivable and unbilled revenues, net	528	95
Inventory	63	(224)
Accounts payable	(443)	(119)
Net regulatory assets and liabilities	1,102	148
Other current assets and liabilities	(41)	(199)
Other non-current assets and liabilities	59	34
Other operating activities, net	9	72
Net cash provided by operating activities	3,069	1,325
Cash Flows from Investing Activities:
Capital expenditures	(3,323)	(3,079)
Other investing activities, net	(12)	73
Net cash used in investing activities	(3,190)	(229)
Cash Flows from Financing Activities:
Increase (decrease) in short-term borrowings, net	(14)	457
Payments of commercial paper, net	(1,496)	(1,620)
Proceeds from long-term debt and term loans	5,574	2,089
Payments of long-term debt and term loan	(2,613)	(1,519)
Payment of debt issuance costs	(50)	(26)
Other financing activities, net	(25)	(7)
Net cash provided by (used in) financing activities	168	(1,220)
Net Increase (Decrease) in Cash, Cash Equivalents and Restricted Cash	47	(124)
Cash, Cash Equivalents and Restricted Cash at Beginning of Period	91	254
Cash, Cash Equivalents and Restricted Cash at End of Period	138	130
CERC
Cash Flows from Operating Activities:
Net income	283	656
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	365	333
Deferred income taxes	(113)	217
Loss (gain) on divestitures	0	(557)
Changes in other assets and liabilities:
Accounts receivable and unbilled revenues, net	724	271
Accounts receivable/payable–affiliated companies	(57)	(59)
Inventory	90	(87)
Accounts payable	(384)	(117)
Net regulatory assets and liabilities	1,192	181
Other current assets and liabilities	64	(81)
Other non-current assets and liabilities	(5)	(5)
Other operating activities, net	(3)	1
Net cash provided by operating activities	2,270	753
Cash Flows from Investing Activities:
Capital expenditures	(1,219)	(1,166)
Increase in notes receivable–affiliated companies	(86)	0
Proceeds from divestitures, net of cash divested	0	2,075
Other investing activities, net	(15)	12
Net cash used in investing activities	(1,320)	921
Cash Flows from Financing Activities:
Increase (decrease) in short-term borrowings, net	(14)	457
Payments of commercial paper, net	(805)	(324)
Proceeds from long-term debt and term loans	2,006	852
Payments of long-term debt and term loan	(2,275)	(425)
Dividend to parent	(347)	(844)
Payment of debt issuance costs	(13)	(11)
Decrease in notes payable–affiliated companies	0	(1,517)
Contribution from parent	500	125
Other financing activities, net	(1)	(1)
Net cash provided by (used in) financing activities	(949)	(1,688)
Net Increase (Decrease) in Cash, Cash Equivalents and Restricted Cash	1	(14)
Cash, Cash Equivalents and Restricted Cash at Beginning of Period	0	15
Cash, Cash Equivalents and Restricted Cash at End of Period	$ 1	$ 1

Leases (Details) $ in Millions	3 Months Ended		9 Months Ended
Leases (Details) $ in Millions	Sep. 30, 2023 USD ($) MW	Sep. 30, 2022 USD ($)	Sep. 30, 2023 USD ($) MW	Sep. 30, 2022 USD ($)	Dec. 31, 2022 USD ($)
Lease Disclosure [Line Items]
Disallowance of regulatory asset	$ 53		$ 53
Lease, Cost [Abstract]
Operating lease cost	1	$ 2	4	$ 4
Short-term lease cost	15	39	28	123
Total lease cost	16	41	32	127
Operating Leases, Lease Income [Abstract]
Operating lease income	2	1	5	4
Variable lease income	0	0	1	1
Total lease income	2	1	6	5
Assets and Liabilities, Lessee [Abstract]
Operating ROU assets	15		15		$ 19
Finance ROU assets	550		550		621
Total leased assets	565		565		640
Current operating lease liability	4		4		5
Non-current operating lease liability	11		11		14
Total leased liabilities	$ 15		$ 15		$ 19
Weighted-average remaining lease term (in years) - operating leases	5 years 8 months 12 days		5 years 8 months 12 days		4 years 3 months 18 days
Weighted-average discount rate - operating leases	3.94%		3.94%		3.80%
Weighted-average remaining lease term (in years) - finance leases	5 years 9 months 18 days		5 years 9 months 18 days		6 years 6 months
Weighted-average discount rate - finance leases (as a percent)	3.60%		3.60%		3.60%
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	Other non-current assets		Other non-current assets		Other non-current assets
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]	Property, Plant and Equipment, Net		Property, Plant and Equipment, Net		Property, Plant and Equipment, Net
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]	Other current liabilities		Other current liabilities		Other current liabilities
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]	Other non-current liabilities		Other non-current liabilities		Other non-current liabilities
Operating Lease Liabilities, Payments Due [Abstract]
Remainder of 2023	$ 2		$ 2
2024	3		3
2025	3		3
2026	3		3
2027	2		2
2028	2		2
2029 and beyond	1		1
Total lease payments	16		16
Less: Interest	1		1
Present value of lease liabilities	15		15		$ 19
Lessor, Operating Lease, Payments, Fiscal Year Maturity [Abstract]
Remainder of 2023	2		2
2024	6		6
2025	8		8
2026	8		8
2027	7		7
2028	7		7
2029 and beyond	173		173
Total lease payments to be received	211		211
Other Information Related to Leases [Abstract]
Operating cash flows from operating leases included in the measurement of lease liabilities	1	1	4	4
Financing cash flows from finance leases included in the measurement of lease liabilities	0	47	0	218
Houston Electric
Lease Disclosure [Line Items]
Expenses associated with short-term lease	$ 102		$ 102		103
Number of megawatts of mobile generation \| MW	505		505
Escrow Deposit	$ 101		$ 101
Expenses associated with long term lease	$ 117		$ 117		60
Lease, Right To Terminate, Percentage Of Prepaid Lease Costs Refunded	75.00%		75.00%
Disallowance Of Reimbursement Clause Exercised			85.00%
Disallowance of regulatory asset	$ 53		$ 53
Lease, Cost [Abstract]
Operating lease cost	1	0	2	0
Short-term lease cost	14	39	27	122
Total lease cost	15	39	29	122
Operating Leases, Lease Income [Abstract]
Operating lease income	1	1	1	1
Variable lease income	0	0	0	0
Total lease income	1	1	1	1
Assets and Liabilities, Lessee [Abstract]
Operating ROU assets	6		6		6
Finance ROU assets	550		550		621
Total leased assets	556		556		627
Current operating lease liability	1		1		1
Non-current operating lease liability	5		5		5
Total leased liabilities	$ 6		$ 6		$ 6
Weighted-average remaining lease term (in years) - operating leases	4 years 1 month 6 days		4 years 1 month 6 days		4 years 9 months 18 days
Weighted-average discount rate - operating leases	4.09%		4.09%		4.01%
Weighted-average remaining lease term (in years) - finance leases	5 years 9 months 18 days		5 years 9 months 18 days		6 years 6 months
Weighted-average discount rate - finance leases (as a percent)	3.60%		3.60%		3.60%
Operating Lease Liabilities, Payments Due [Abstract]
Total lease payments	$ 7		$ 7
Less: Interest	1		1
Present value of lease liabilities	6		6		$ 6
Lessor, Operating Lease, Payments, Fiscal Year Maturity [Abstract]
Remainder of 2023	0		0
2024	1		1
2025	1		1
2026	0		0
2027	0		0
2028	0		0
2029 and beyond	0		0
Total lease payments to be received	2		2
Other Information Related to Leases [Abstract]
Operating cash flows from operating leases included in the measurement of lease liabilities	0	0	1	0
Financing cash flows from finance leases included in the measurement of lease liabilities	0	47	0	218
CERC
Lease, Cost [Abstract]
Operating lease cost	0	0	1	1
Short-term lease cost	0	1	0	1
Total lease cost	0	1	1	2
Operating Leases, Lease Income [Abstract]
Operating lease income	1	1	3	2
Variable lease income	0	0	0	0
Total lease income	1	1	3	2
Assets and Liabilities, Lessee [Abstract]
Operating ROU assets	4		4		5
Finance ROU assets	0		0		0
Total leased assets	4		4		5
Current operating lease liability	1		1		2
Non-current operating lease liability	3		3		4
Total leased liabilities	$ 4		$ 4		$ 6
Weighted-average remaining lease term (in years) - operating leases	3 years 3 months 18 days		3 years 3 months 18 days		3 years 10 months 24 days
Weighted-average discount rate - operating leases	3.60%		3.60%		3.58%
Weighted-average discount rate - finance leases (as a percent)	0.00%		0.00%		0.00%
Operating Lease Liabilities, Payments Due [Abstract]
Remainder of 2023	$ 1		$ 1
2024	2		2
2025	1		1
2026	1		1
2027	0		0
2028	0		0
2029 and beyond	0		0
Total lease payments	5		5
Less: Interest	1		1
Present value of lease liabilities	4		4		$ 6
Lessor, Operating Lease, Payments, Fiscal Year Maturity [Abstract]
Remainder of 2023	1		1
2024	5		5
2025	5		5
2026	5		5
2027	5		5
2028	5		5
2029 and beyond	170		170
Total lease payments to be received	196		196
Other Information Related to Leases [Abstract]
Operating cash flows from operating leases included in the measurement of lease liabilities	0	0	1	1
Financing cash flows from finance leases included in the measurement of lease liabilities	$ 0	$ 0	$ 0	$ 0

Divestitures (CenterPoint Energy and CERC) - Schedule of Pre-tax Income (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Income from Continuing Operations Before Income Taxes	$ 350	$ 277	$ 970	$ 1,251
CERC
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Income from Continuing Operations Before Income Taxes	38	10	363	876
Disposal Group, Held-for-sale or Disposed of by Sale, Not Discontinued Operations \| Energy Systems Group
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Income from Continuing Operations Before Income Taxes	$ 0	(1)	$ (4)	(5)
Disposal Group, Held-for-sale or Disposed of by Sale, Not Discontinued Operations \| Arkansas and Oklahoma Natural Gas Businesses
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Income from Continuing Operations Before Income Taxes		0		9
Disposal Group, Held-for-sale or Disposed of by Sale, Not Discontinued Operations \| Arkansas and Oklahoma Natural Gas Businesses \| CERC
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Income from Continuing Operations Before Income Taxes		$ 0		$ 9

- Definition

Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 944
-SubTopic 220
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-04(11))
-Publisher FASB
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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-Publisher FASB
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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-Paragraph 30
-Subparagraph (b)
-Publisher FASB
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Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
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-Paragraph 32
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Reference 5: http://www.xbrl.org/2003/role/exampleRef
-Topic 280
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-Paragraph 31
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Reference 6: http://www.xbrl.org/2003/role/disclosureRef
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-Paragraph 32
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Reference 7: http://www.xbrl.org/2003/role/disclosureRef
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+ Details

Regulatory Matters - Schedule of Allowed Equity Return Recognized (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Public Utilities, General Disclosures [Line Items]
Allowed equity return not recognized	$ 205		$ 205		$ 188
Allowed equity return recognized	14	$ 14	32	$ 36
Houston Electric
Public Utilities, General Disclosures [Line Items]
Allowed equity return not recognized	81		81		82
Allowed equity return recognized	14	12	30	33
CERC
Public Utilities, General Disclosures [Line Items]
Allowed equity return not recognized	66		66		$ 54
Allowed equity return recognized	$ 0	$ 1	$ 1	$ 2

Condensed Statements of Consolidated Comprehensive Income (Unaudited) - CERC - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Net income (loss)	$ 282	$ 202	$ 725	$ 923
Adjustment to pension and other postretirement plans (net of tax of $-0-, $-0- ,$-0- and $-0-)	1	2	0	(20)
Other comprehensive loss	3	2	2	(19)
Comprehensive income (loss)	285	204	727	904
CERC
Net income (loss)	28	(7)	283	656
Adjustment to pension and other postretirement plans (net of tax of $-0-, $-0- ,$-0- and $-0-)	0	0	(1)	0
Other comprehensive loss	0	0	(1)	0
Comprehensive income (loss)	$ 28	$ (7)	$ 282	$ 656

- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

+ References

+ Details