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ASSET RETIREMENT OBLIGATION (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2023
Mar. 31, 2022
Dec. 31, 2022
Asset Retirement Obligation, Roll Forward Analysis [Roll Forward]      
Asset retirement obligation at the beginning of period $ 1,991    
Liabilities incurred 5    
Liabilities settled (10)    
Accretion expense 28 $ 29  
Asset retirement obligation at the end of period 2,014    
Less current portion (55)   $ (55)
Asset retirement obligation, long-term $ 1,959   $ 1,936