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Variable Interest Entities - Narrative (Details) - Constellation Energy Generation, LLC	Mar. 31, 2025	Dec. 31, 2024
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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- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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