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RESERVE ROLLFORWARDS (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Movement In Valuation Allowances And Reserves Roll Forward      
Beginning Balance $ 1,053 $ 969 $ 1,047
Charges (Credits) to Cost and Expense 56 121 (69)
Charged to Other Accounts (3) (31) 2
Deductions 15 6 11
Ending Balance 1,091 1,053 969
SEC Schedule, 12-09, Allowance, Credit Loss [Member]      
Movement In Valuation Allowances And Reserves Roll Forward      
Beginning Balance 17 14 11
Charges (Credits) to Cost and Expense (2) 4 4
Charged to Other Accounts 0 (1) 0
Deductions 0 0 1
Ending Balance 15 17 14
LIFO Inventory [Member]      
Movement In Valuation Allowances And Reserves Roll Forward      
Beginning Balance 365 226 248
Charges (Credits) to Cost and Expense 128 159 (22)
Charged to Other Accounts 0 (30) 0
Deductions 0 (10) 0
Ending Balance 493 365 226
Non-environmental asset retirement obligation Costs [Member]      
Movement In Valuation Allowances And Reserves Roll Forward      
Beginning Balance 51 51 48
Charges (Credits) to Cost and Expense 2 2 2
Charged to Other Accounts (1) (1) 1
Deductions 1 1 0
Ending Balance 51 51 51
Environmental Contingencies [Member]      
Movement In Valuation Allowances And Reserves Roll Forward      
Beginning Balance 281 285 287
Charges (Credits) to Cost and Expense 7 11 8
Charged to Other Accounts 0 0 0
Deductions 14 15 10
Ending Balance 274 281 285
SEC Schedule, 12-09, Valuation Allowance, Deferred Tax Asset [Member]      
Movement In Valuation Allowances And Reserves Roll Forward      
Beginning Balance 339 393 453
Charges (Credits) to Cost and Expense (79) (55) (61)
Charged to Other Accounts (2) 1 1
Deductions 0 0 0
Ending Balance $ 258 $ 339 $ 393