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DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES - Derivative Assets and Liabilities Measured at Fair Value (Details) - USD ($)
$ in Millions
Dec. 31, 2023
Dec. 31, 2022
Assets:    
Derivative assets $ 6 $ 5
Liabilities:    
Derivative liabilities 0 50
Commodity derivative instruments | Recurring    
Assets:    
Derivative asset, fair value 6 5
Derivative asset, netting 0 0
Derivative assets 6 5
Liabilities:    
Derivative liability, fair value   50
Derivative liability, netting   0
Derivative liabilities   50
Commodity derivative instruments | Recurring | Quoted Price in Active Markets (Level 1)    
Assets:    
Derivative asset, fair value 0 0
Liabilities:    
Derivative liability, fair value   0
Commodity derivative instruments | Recurring | Significant Other Inputs (Level 2)    
Assets:    
Derivative asset, fair value 6 5
Liabilities:    
Derivative liability, fair value   50
Commodity derivative instruments | Recurring | Significant Unobservable Inputs (Level 3)    
Assets:    
Derivative asset, fair value $ 0 0
Liabilities:    
Derivative liability, fair value   $ 0