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ACQUISITIONS AND DIVESTITURES - 2020 Activity (Details) - USD ($)
$ in Millions
3 Months Ended 12 Months Ended
Jun. 30, 2021
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Business Acquisition [Line Items]        
Leasehold and property acquisitions amount   $ 37 $ 9 $ 4
Proceeds from sale of oil and gas properties   $ 778 256 166
Gain (loss) on investment in joint venture       19
Permian Region        
Business Acquisition [Line Items]        
Leasehold and property acquisitions amount     $ 9 4
Permian Region | Disposal Group, Disposed of by Sale, Not Discontinued Operations        
Business Acquisition [Line Items]        
Proceeds from sale of oil and gas properties $ 176     87
Gain (loss) on sale of oil and gas properties $ 63     $ 13