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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Schedule of Changes in Asset Retirement Obligations) (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Asset Retirement Obligation, Roll Forward Analysis [Roll Forward]    
ARO liability at beginning of year $ 5,298 $ 6,412
Liabilities incurred 134 0
Revision in estimated cash flows 325 (1,378)
Accretion 213 287
Liabilities settled (58) (23)
ARO liability at end of year $ 5,912 $ 5,298