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COMMITMENTS AND CONTINGENCIES (Details) (USD $)
In Millions, unless otherwise specified
9 Months Ended
Sep. 30, 2012
Dec. 31, 2011
Debt Instrument [Line Items]    
Line of credit $ 85  
Letters of Credit Outstanding, Amount 60  
Bank guarantees 1  
Litigation reserves 5 5
Self-insurance reserves $ 115 $ 127