COMMITMENTS AND CONTINGENCIES (Details) (USD $) In Millions, unless otherwise specified	6 Months Ended
	Jun. 30, 2013	Dec. 31, 2012
Environmental Matters [Abstract]
Beginning of period	$ 654
Accruals for environmental matters deemed probable and reasonably estimable	110
Environmental liability payments	(108)
Other	20
End of period	676
Loss Contingency Classification of Accrual [Abstract]
Accrued liabilities	304	304
Other liabilities	372	350
Total environmental liabilities	$ 676