COMMITMENTS AND CONTINGENCIES (Details) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Environmental Matters [Abstract]
Beginning of period	$ 723,000,000	$ 753,000,000	$ 779,000,000
Accruals for environmental matters deemed probable and reasonably estimable	234,000,000	240,000,000	225,000,000
Other	17,000,000	0	15,000,000
End of period	654,000,000	723,000,000	753,000,000
Loss Contingency Classification of Accrual [Abstract]
Accrued liabilities	304,000,000	303,000,000
Other liabilities	350,000,000	420,000,000
Total environmental liabilities	$ 654,000,000	$ 723,000,000	$ 753,000,000