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Acquisitions and Divestitures - 2024 Divestitures (Details) $ in Millions | 1 Months Ended | 6 Months Ended
--- | --- | ---
May 31, 2024 USD ($) MW | Mar. 31, 2024 USD ($) | Jun. 30, 2025 USD ($) MW | Aug. 31, 2024 USD ($) | Jun. 30, 2024 USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |
Proceeds from divestiture |  |  | $ 0 |  | $ 1,089
Gain (loss) on sale of assets, net |  |  | $ 0 |  | 886
Disposal Group, Disposed of by Sale, Not Discontinued Operations | ERCOT Assets |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |
Power generating capacity | MW | 1,710 |  |  |  |
Proceeds from divestiture | $ 785 |  |  |  |
Gain (loss) on sale of assets, net |  |  |  |  | 563
Disposal Group, Disposed of by Sale, Not Discontinued Operations | AWS Data Campus |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |
Power generating capacity | MW |  |  | 1,920 |  |
Proceeds from divestiture |  | $ 350 |  | $ 650 |
Gain (loss) on sale of assets, net |  |  |  |  | $ 324
Funding of professional fees escrow account |  |  |  | $ 300 |

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