COMMITMENTS AND CONTINGENCIES (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2019	Dec. 31, 2018
Loss Contingency, Classification of Accrual [Abstract]
Accrued liabilities				$ 222	$ 175
Other liabilities				487	580
Total environmental liabilities	$ 755	$ 755	$ 511	$ 709	$ 755
Environmental Matters [Abstract]
Beginning of period	755	595	511
Accruals for environmental matters deemed probable and reasonably estimable	213	395	287
Environmental liability payments	(256)	(218)	(212)
Other	(3)	(17)	9
End of period	$ 709	$ 755	$ 595