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COMMITMENTS AND CONTINGENT LIABILITIES (Environmental Matters) (Narrative) (Details) - USD ($)
$ in Millions
Mar. 31, 2017
Dec. 31, 2016
Loss Contingencies [Line Items]    
Accrual for environmental loss contingencies $ 143 $ 145
Accrual For Environmental Loss Contingencies Superfund Sites [Member]    
Loss Contingencies [Line Items]    
Accrual for environmental loss contingencies $ 21 $ 20