COMMITMENTS AND CONTINGENCIES (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2017	Dec. 31, 2016
Accrual For Environmental Loss Contingencies [RollForward]
Beginning of period	$ 511
Accruals for environmental matters deemed probable and reasonably estimable	105
Environmental liability payments	(70)
Other	8
End of period	554
Loss Contingency Classification of Accrual [Abstract]
Accrued liabilities		$ 252	$ 252
Other liabilities		302	259
Total environmental liabilities	$ 554	$ 554	$ 511