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DERIVATIVES (Volumes of Outstanding Derivative Contracts) (Details) | Dec. 31, 2024 MMBTU MWh | Dec. 31, 2023 MMBTU MWh
--- | --- | ---
Forwards, futures, and swaps | Natural Gas |  |
Derivative [Line Items] |  |
Contract Volume | 179,257,247 | 196,063,296
Forwards, futures, and swaps | Electricity (MWh) |  |
Derivative [Line Items] |  |
Contract Volume | MWh | 8,576,078 | 9,169,967
Options | Natural Gas |  |
Derivative [Line Items] |  |
Contract Volume | 37,717,500 | 30,695,000
Options | Electricity (MWh) |  |
Derivative [Line Items] |  |
Contract Volume | 1,663,200 | 92,400
Congestion Revenue Rights | Electricity (MWh) |  |
Derivative [Line Items] |  |
Contract Volume | MWh | 123,040,895 | 170,465,674

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