COMMITMENTS AND CONTINGENCIES (Details) (USD $) In Millions, unless otherwise specified	9 Months Ended
	Sep. 30, 2012	Dec. 31, 2011
Environmental Matters [Abstract]
Beginning of period	$ 723
Accruals for environmental matters deemed probable and reasonably estimable	181
Environmental liability payments	(212)
Other adjustments	17
End of period	709
Loss Contingency Classification of Accrual [Abstract]
Accrued liabilities	303	303
Other liabilities	406	420
Total environmental liabilities	$ 709