COMMITMENTS AND CONTINGENCIES (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Dec. 31, 2013
Environmental Matters [Abstract]
Beginning of period	$ 643
Accruals for environmental matters deemed probable and reasonably estimable	82
Environmental liability payments	(56)
Other	1
End of period	670
Loss Contingency Classification of Accrual [Abstract]
Accrued liabilities	305	304
Other liabilities	365	339
Total environmental liabilities	$ 670