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ASSET RETIREMENT OBLIGATION (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2023
Jun. 30, 2022
Jun. 30, 2023
Jun. 30, 2022
Dec. 31, 2022
Asset Retirement Obligation, Roll Forward Analysis [Roll Forward]          
Asset retirement obligation at the beginning of period     $ 1,991    
Liabilities incurred     6    
Liabilities settled     (21)    
Accretion expense $ 29 $ 29 57 $ 58  
Asset retirement obligation at the end of period 2,033   2,033    
Less current portion (55)   (55)   $ (55)
Asset retirement obligation, long-term $ 1,978   $ 1,978   $ 1,936