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Derivatives and Hedging Activities (Details 2) - Other Expense [Member] - Foreign exchange contracts [Member] - USD ($)
$ in Millions
9 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Derivative Instruments, Gain (Loss) [Line Items]    
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net $ 5 $ 0
Amount Of Ineffectiveness On Net Investment Hedges $ 0 $ 1