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Revenue Recognition - Schedule of Contract With Customers (Details) $ in Millions | 3 Months Ended
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Mar. 31, 2025 USD ($)
Accounts Receivable (1) |
Opening balance as of December 31, 2024 | $ 666
Closing balance as of March 31, 2025 | 779
Increase (decrease) in accounts receivable | 113
Accrued Unbilled Revenues |
Opening balance as of December 31, 2024 | 521
Closing balance as of March 31, 2025 | 403
Increase (decrease) in other accrued unbilled revenues | (118)
Houston Electric |
Accounts Receivable (1) |
Opening balance as of December 31, 2024 | 284
Closing balance as of March 31, 2025 | 264
Increase (decrease) in accounts receivable | (20)
Accrued Unbilled Revenues |
Opening balance as of December 31, 2024 | 137
Closing balance as of March 31, 2025 | 126
Increase (decrease) in other accrued unbilled revenues | (11)
CERC |
Accounts Receivable (1) |
Opening balance as of December 31, 2024 | 326
Closing balance as of March 31, 2025 | 457
Increase (decrease) in accounts receivable | 131
Accrued Unbilled Revenues |
Opening balance as of December 31, 2024 | 338
Closing balance as of March 31, 2025 | 230
Increase (decrease) in other accrued unbilled revenues | $ (108)

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- Definition Accounts Receivable For Contracts With Customers + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
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- Definition Change in Accounts Receivable [Roll Forward] + References No definition available. + Details
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- Definition Change in Other Accrued Unbilled Revenues [Roll Forward] + References No definition available. + Details
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- Definition Increase (Decrease) In Accounts Receivable On Contracts With Customers + References No definition available. + Details
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- Definition Increase (Decrease) In Contract With Customer, Asset, Other Accrued Unbilled Receivables + References No definition available. + Details
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- Definition Unbilled amounts due for services rendered or to be rendered, actions taken or to be taken, or a promise to refrain from taking certain actions in accordance with the terms of a legally binding agreement between the entity and, at a minimum, one other party. An example would be amounts associated with contracts or programs where the recognized revenue for performance thereunder exceeds the amounts billed under the terms thereof as of the date of the balance sheet. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 912 -SubTopic 310 -Name Accounting Standards Codification -Section 45 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147478345/912-310-45-2 + Details
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- Details
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- Details
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Period Type: |