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Mergers, Acquisitions, and Dispositions - Narrative (Details) $ in Millions | 1 Months Ended |  |
--- | --- | --- | ---
Nov. 30, 2023 USD ($) MW | Jun. 30, 2025 | May 31, 2024
Constellation South Texas LLP |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |
MW of generation | MW | 2,645 |  |
Consideration | $ | $ 1,650 |  |
Constellation South Texas LLP |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |
Equity ownership | 44.00% |  |
Sale of equity ownership |  |  | 2.00%
Constellation South Texas LLP | Forecast |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |
Equity ownership |  | 42.00% |
Constellation South Texas LLP | City of Austin |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |
Equity ownership | 16.00% |  |
Constellation South Texas LLP | CPS | Forecast |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |
Equity ownership |  | 42.00% |
Constellation South Texas LLP | STP Nuclear Operating Company |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |
Equity ownership | 40.00% |  |

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