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DERIVATIVE INSTRUMENTS AND HEDGING - Narrative (Details) $ in Millions | 12 Months Ended |
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Dec. 31, 2023 USD ($) MMBtu MWh | Dec. 31, 2022 MMBtu MWh
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |
Expected reclassification of net losses related to hedge contracts | $ | $ 155 |
Commodity Contract | Natural Gas |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |
Notional Amount | MMBtu | 168,590,000 | 127,790,000
Commodity Contract | Electricity |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |
Notional Amount | MWh | 3,501,898 | 432,043

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