COMMITMENTS AND CONTINGENCIES (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2017	Dec. 31, 2016
Accrual For Environmental Loss Contingencies [RollForward]
Beginning of period	$ 511
Accruals for environmental matters deemed probable and reasonably estimable	167
Environmental liability payments	(116)
Other	9
End of period	571
Loss Contingency Classification of Accrual [Abstract]
Accrued liabilities		$ 252	$ 252
Other liabilities		319	259
Total environmental liabilities	$ 571	$ 571	$ 511