COMMITMENTS AND CONTINGENCIES (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2017	Dec. 31, 2016
Accrual For Environmental Loss Contingencies [RollForward]
Beginning of period	$ 511
Accruals for environmental matters deemed probable and reasonably estimable	50
Environmental liability payments	(31)
Other	8
End of period	538
Loss Contingency Classification of Accrual [Abstract]
Accrued liabilities		$ 252	$ 252
Other liabilities		286	259
Total environmental liabilities	$ 538	$ 538	$ 511