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Accrued Expenses and Other Long-Term Liabilities, Environmental Matters (Details) (USD $)
In Millions, unless otherwise specified
 12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Changes in Environmental Liabilities Rollforward Analysis      
Balance as of beginning of year $ 274 $ 268 $ 279
Pembroke Acquisition 0 30 0
Additions to liability 23 18 50
Reductions to liability (1) (5) (21)
Payments, net of third-party recoveries (29) (35) (42)
Foreign currency translation 2 (2) 2
Balance as of end of year $ 269 $ 274 $ 268