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OTHER CONTINGENCIES AND COMMITMENTS (Third-Party Power Purchase Agreements and Other Agreements) (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Power Purchases and Electric Capacity      
Third-Party Power Purchase Agreements [Line Items]      
Costs incurred for power purchases and electric capacity $ 2,100 $ 2,400 $ 2,800
Nuclear Fuel      
Third-Party Power Purchase Agreements [Line Items]      
Payments for nuclear fuel 294 180 44
Gas Contracts      
Third-Party Power Purchase Agreements [Line Items]      
Cost of goods $ 800 $ 2,500 $ 2,400