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Reportable Segments (Tables)

12 Months Ended

Dec. 31, 2024

Segment Reporting [Abstract]

Schedule of Financial Data for Business Segments

Financial data for reportable segments is as follows:

CenterPoint Energy

			Year Ended December 31, 2024
			Electric						Natural Gas						Corporate and Other												Total Reportable Segments						Eliminations						Total
			(in millions)
Revenues from external customers			$	4,590					$	4,048					$	5											$	8,643					$	—					$	8,643
Intersegment revenues			—						2						—												2						(2)						—
Utility natural gas, fuel and purchased power			198						1,520						(1)												1,717						(2)						1,715
Non-utility cost of revenues, including natural gas			—						3						—												3						—						3
Operation and maintenance expenses			2,072						881						(4)												2,949						—						2,949
Depreciation and amortization			877						542						20												1,439						—						1,439
Taxes other than income taxes			304						237						6												547						—						547
Interest expense			372						207						286												865						(27)						838
Income tax expense (benefit)			157						108						(70)												195						—						195
Interest income (1)			(18)						(2)						(14)												(34)						27						(7)
Other income, net (2)			(43)						(12)						—												(55)						—						(55)
Net income (loss)			$	671					$	566					$	(218)											$	1,019					$	—					$	1,019

			Year Ended December 31, 2023
			Electric						Natural Gas						Corporate and Other						Total Reportable Segments						Eliminations						Total
			(in millions)
Revenues from external customers			$	4,290					$	4,276					$	130					$	8,696					$	—					$	8,696
Intersegment revenues			—						3						—						3						(3)						—
Utility natural gas, fuel and purchased power			176						1,888						—						2,064						(3)						2,061
Non-utility cost of revenues, including natural gas			—						3						96						99						—						99
Operation and maintenance expenses			1,880						949						21						2,850						—						2,850
Depreciation and amortization			872						513						16						1,401						—						1,401
Taxes other than income taxes			272						245						8						525						—						525
Interest expense			303						188						264						755						(54)						701
Income tax expense (benefit)			189						(25)						6						170						—						170
Interest income (1)			(19)						(10)						(34)						(63)						54						(9)
Other expense (income), net (2)			(37)						(5)						23						(19)						—						(19)
Net income (loss)			$	654					$	533					$	(270)					$	917					$	—					$	917

			Year Ended December 31, 2022
			Electric						Natural Gas						Corporate and Other						Total Reportable Segments						Eliminations						Total
			(in millions)
Revenues from external customers			$	4,108					$	4,946					$	267					$	9,321					$	—					$	9,321
Utility natural gas, fuel and purchased power			222						2,665						—						2,887						—						2,887
Non-utility cost of revenues, including natural gas			—						4						200						204						—						204
Operation and maintenance expenses			1,864						919						50						2,833						—						2,833
Depreciation and amortization			793						466						29						1,288						—						1,288
Taxes other than income taxes			275						261						7						543						—						543
Interest expense			235						137						214						586						(62)						524
Income tax expense (benefit)			147						243						(30)						360						—						360
Interest income (1)			(4)						(2)						(60)						(66)						62						(4)
Other income, net (2)			(27)						(239)						(105)						(371)						—						(371)
Net income (loss)			$	603					$	492					$	(38)					$	1,057					$	—					$	1,057

(1) Interest income from Securitization Bonds of $3 million, $4 million, and less than $1 million for the years ended December 31, 2024, 2023 and 2022, respectively, is included in Other income (expense), net on CenterPoint Energy’s Statements of Consolidated Income.

(2) Other income (expense), net primarily includes AFUDC equity, non-service cost for pension and postretirement benefits, Gain (loss) on equity securities, Gain (loss) on indexed debt securities and Gain (loss) on sale.

			Total Assets												Expenditures for Long-lived Assets
			As of December 31,												Year Ended December 31,
			2024						2023						2024						2023						2022
			(in millions)
Electric			$	23,936					$	21,089					$	3,099					$	2,660					$	2,611
Natural Gas			18,583						17,429						1,524						1,697						1,697
Corporate and Other, net of eliminations (1)			1,249						1,197						26						13						107
Continuing Operations			43,768						39,715						4,649						4,370						4,415
Divestitures (2)			—						—						—						—						3
Consolidated			$	43,768					$	39,715					$	4,649					$	4,370					$	4,418

(1)Total assets included pension and other postemployment-related regulatory assets of $384 million and $385 million as of December 31, 2024 and 2023, respectively.

(2)For further information regarding CenterPoint Energy’s and CERC’s divestitures, see Note 4.

Financial data related to interest income and expenditures for long-lived assets is as follows:

			Year Ended December 31,
			2024						2023						2022
			(in millions)
Interest income (1)			$	16					$	14					$	3
Expenditures for long-lived assets			2,738						2,309						2,302

(1)Reflected in Other income (expense), net on Houston Electric’s Statements of Consolidated Income.

Financial data related to interest income and expenditures for long-lived assets is as follows:

			Year Ended December 31,
			2024						2023						2022
			(in millions)
Interest income (1)			$	2					$	10					$	3
Expenditures for long-lived assets			1,485						1,568						1,616

(1)Reflected in Other income (expense), net on CERC’s Statements of Consolidated Income.

Schedule of Revenue by Major Customers by Reporting Segments

Houston Electric’s revenues from major external customers are as follows:

			Year Ended December 31,
			2024						2023						2022
			(in millions)
Affiliates of NRG			$	1,169					$	1,106					$	1,046
Affiliates of Vistra Energy Corp.			605						539						489

Schedule of Revenues by Products and Services

Revenues by Products and Services

						Year Ended December 31,
						2024																		2023																		2022
						CenterPoint Energy						Houston Electric						CERC						CenterPoint Energy						Houston Electric						CERC						CenterPoint Energy						Houston Electric						CERC
						(in millions)
Electric delivery						$	3,963					$	3,939					$	—					$	3,701					$	3,677					$	—					$	3,438					$	3,412					$	—
Retail electric sales						622						—						—						569						—						—						630						—						—
Wholesale electric sales						4						—						—						20						—						—						40						—						—
Retail gas sales						3,837						—						3,716						4,078						—						3,951						4,759						—						4,613
Gas transportation						11						—						11						11						—						11						12						—						12
Energy products and services						206						—						198						317						—						187						442						—						175
Total						$	8,643					$	3,939					$	3,925					$	8,696					$	3,677					$	4,149					$	9,321					$	3,412					$	4,800

X

- Definition

Tabular disclosure of entity-wide revenues from external customers for each product or service or each group of similar products or services if the information is not provided as part of the reportable operating segment information.

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-Name Accounting Standards Codification
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-Section 50
-Paragraph 40
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Tabular disclosure of the extent of the entity's reliance on its major customers, if revenues from transactions with a single external customer amount to 10 percent or more of entity revenues, including the disclosure of that fact, the total amount of revenues from each such customer, and the identity of the reportable segment or segments reporting the revenues. The entity need not disclose the identity of a major customer or the amount of revenues that each segment reports from that customer. For these purposes, a group of companies known to the entity to be under common control is considered a single customer, and the federal government, a state government, a local government such as a county or municipality, or a foreign government is each considered a single customer.

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Tabular disclosure of the profit or loss and total assets for each reportable segment. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss.

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