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CAPITALIZED EXPLORATORY WELL COSTS - Capitalized Exploratory Well Costs Rollforward (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Increase (Decrease) in Capitalized Exploratory Well Costs that are Pending Determination of Proved Reserves [Roll Forward]      
Capitalized well costs at beginning of year $ 50 $ 46 $ 197
Additions pending determination of proved reserves 150 138 62
Divestitures and other 0 0 (163)
Reclassifications to proved properties (135) (110) (40)
Charged to exploration expense (18) (24) (10)
Capitalized well costs at end of year $ 47 $ 50 $ 46