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European Strategic Changes European Strategic Changes Reconciliation to Accrued Expenses (Details) (European Strategic Changes [Member], USD $)
In Millions, unless otherwise specified
3 Months Ended
Mar. 31, 2013
Restructuring Cost and Reserve  
Accrued expenses - January 1 $ 133
Restructuring Reserve, Settled with Cash (13)
Restructuring reserve currency and other (7)
Accrued expenses - March 31 154
Cash charges [Member]
 
Restructuring Cost and Reserve  
Restructuring Charges $ 41