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RISK-MANAGEMENT AND HEDGING ACTIVITIES USING DERIVATIVES - Schedule of Fair Value of Derivative Instruments (Details) - USD ($)
$ in Millions
Jun. 30, 2025
Dec. 31, 2024
Derivative Instruments and Hedging Activities Disclosures [Line Items]    
Assets $ 96 $ 75
(Liabilities) (75) (86)
Cash posted - offsetting derivative net liability positions under master-netting arrangements   10
Derivatives designated as hedging instruments    
Derivative Instruments and Hedging Activities Disclosures [Line Items]    
Assets 76 39
(Liabilities) (50) (47)
Derivatives not designated as hedging instruments    
Derivative Instruments and Hedging Activities Disclosures [Line Items]    
Assets 20 36
(Liabilities) (25) (39)
Other current assets | Commodity contracts | Derivatives designated as hedging instruments    
Derivative Instruments and Hedging Activities Disclosures [Line Items]    
Assets 76 39
Other current assets | Commodity contracts | Derivatives not designated as hedging instruments    
Derivative Instruments and Hedging Activities Disclosures [Line Items]    
Assets 20 36
Other current liabilities | Commodity contracts | Derivatives designated as hedging instruments    
Derivative Instruments and Hedging Activities Disclosures [Line Items]    
(Liabilities) (50) (47)
Other current liabilities | Commodity contracts | Derivatives not designated as hedging instruments    
Derivative Instruments and Hedging Activities Disclosures [Line Items]    
(Liabilities) (25) (33)
Other deferred credits | Commodity contracts | Derivatives not designated as hedging instruments    
Derivative Instruments and Hedging Activities Disclosures [Line Items]    
Assets 0 0
(Liabilities) $ 0 $ (6)