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Other Assets And Liabilities (Other Current Liabilities) (Details) (USD $)
In Millions, unless otherwise specified
Sep. 30, 2012
Dec. 31, 2011
Other Assets And Liabilities [Abstract]    
Legal and professional $ 6 $ 6
Pension and post-retirement 3 3
Freight 8 7
Other accrued expenses 60 57
Total other current liabilities $ 77 $ 73