COMMITMENTS AND CONTINGENCIES (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2015	Dec. 31, 2014
Loss Contingency Classification of Accrual [Abstract]
Accrued liabilities				$ 253	$ 278
Other liabilities				265	313
Total environmental liabilities	$ 591	$ 643	$ 654	$ 518	$ 591
Environmental Matters [Abstract]
Beginning of period	591	643	654
Accruals for environmental matters deemed probable and reasonably estimable	194	268	272
Environmental liability payments	(273)	(321)	(304)
Other	6	1	21
End of period	$ 518	$ 591	$ 643