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CONTINGENT LIABILITIES (Details) - USD ($)
$ in Millions
Mar. 31, 2020
Dec. 31, 2019
Other Commitments [Line Items]    
Accrual for environmental loss contingencies $ 218 $ 217
Accrued environmental loss contingencies, current 13 14
Accrued environmental loss contingencies, noncurrent 205 203
Loss contingency, receivable 104 $ 104
Minimum    
Other Commitments [Line Items]    
Loss contingency accrual 255  
Maximum    
Other Commitments [Line Items]    
Loss contingency accrual $ 290