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Derivative Accounting - Schedule of Outstanding Gross Notional Amounts Outstanding (Details) - Commodity Contracts MWh in Thousands | 12 Months Ended
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Dec. 31, 2024 MWh Bcf | Dec. 31, 2023 MWh Bcf
Outstanding gross notional amount of derivatives |  |
Power | MWh | 1,051 | 1,212
Gas | Bcf | 235,000 | 200,000

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