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LEGAL PROCEEDINGS, COMMITMENTS AND CONTINGENCIES - Changes in the Reserve for Environmental Remediation (Details) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Dec. 31, 2012
Environmental Exit Cost [Line Items]  
Reserve balance as of December 31, 2011 $ 34
Reserve charges and adjustments, net 4
Payments (6)
Reserve balance as of December 31, 2012 $ 32
Total active sites as of December 31, 2012 53