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Other Expense (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended 9 Months Ended
Sep. 30, 2014
Sep. 30, 2014
Sep. 30, 2013
Restructuring, asset impairment and related charges      
Restructuring, asset impairment and related charges $ 79 $ 79 $ 10
OtherExpense
     
Restructuring, asset impairment and related charges      
Restructuring, asset impairment and related charges   $ 71