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ACQUISITIONS AND DIVESTITURES - 2021 Activity (Details) - USD ($)
$ in Millions
3 Months Ended 12 Months Ended
Jun. 30, 2021
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Business Acquisition [Line Items]        
Proceeds from asset divestitures   $ 29 $ 778 $ 256
Disposed of by Sale | Non-Core Assets And Leasehold        
Business Acquisition [Line Items]        
Proceeds from asset divestitures   29 52  
Gain (loss) on sale of oil and gas properties   $ 8 36  
Permian Region        
Business Acquisition [Line Items]        
Payments to acquire leasehold and property     $ 37 9
Permian Region | Disposed of by Sale        
Business Acquisition [Line Items]        
Carrying value of non-core assets disposed $ 157      
Proceeds from asset divestitures 176      
Asset retirement obligation assumed 44      
Gain (loss) on sale of oil and gas properties $ 63      
Permian Region | Disposed of by Sale | Non-Core Assets And Leasehold        
Business Acquisition [Line Items]        
Proceeds from asset divestitures       80
Gain (loss) on sale of oil and gas properties       $ 4