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Variable Interest Entities - Narrative (Details) - Constellation Energy Generation, LLC | Sep. 30, 2024 | Dec. 31, 2023
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EGRP |  |
Variable Interest Entity [Line Items] |  |
Equity ownership | 51.00% | 51.00%
Antelope Valley |  |
Variable Interest Entity [Line Items] |  |
Equity ownership | 100.00% | 100.00%
NER |  |
Variable Interest Entity [Line Items] |  |
Equity ownership | 100.00% | 100.00%

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