Derivative Instruments and Hedging Activities Derivative Instruments and Hedging Activities Disclosure abstract (Details) (USD $) In Millions, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Derivative [Line Items]
Derivative Assets, Gross	$ 192	$ 240
Foreign Exchange Contract [Member]
Derivative [Line Items]
Derivative Assets, Gross	131	113
Not Designated as Hedging Instrument [Member]
Derivative [Line Items]
Derivative Assets, Gross	144	127
Not Designated as Hedging Instrument [Member] | Foreign Exchange Contract [Member]
Derivative [Line Items]
Derivative Assets, Gross	$ 121	$ 109