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COMMITMENTS AND CONTINGENCIES Narrative (Details) - USD ($)
$ in Millions
Sep. 30, 2019
Dec. 31, 2018
Loss Contingencies [Line Items]    
Loss Contingency Accrual $ 1 $ 16
Other Commitment 401  
Letter of Credit [Member]    
Loss Contingencies [Line Items]    
Letters of credit outstanding 38  
Surety Bonds [Member]    
Loss Contingencies [Line Items]    
Other Commitment $ 134