Derivative Financial Instruments and Risk Management (Details 2) (USD $) In Millions, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Derivatives, Fair Value
Asset Fair Value	$ 105	$ 138
Liability Fair Value	(31)	(10)
Designated derivatives
Derivatives, Fair Value
Asset (Liability) Fair Value	74	116
Designated derivatives | Interest rate contracts | Other assets
Derivatives, Fair Value
Asset Fair Value	83	122
Designated derivatives | Interest rate contracts | Accrued expenses
Derivatives, Fair Value
Liability Fair Value	(9)	(6)
Undesignated derivatives
Derivatives, Fair Value
Asset (Liability) Fair Value	0	12
Undesignated derivatives | Foreign exchange contracts | Other assets
Derivatives, Fair Value
Asset Fair Value	10	7
Undesignated derivatives | Foreign exchange contracts | Accrued expenses
Derivatives, Fair Value
Liability Fair Value	(22)	(4)
Undesignated derivatives | Cross currency contracts | Other assets
Derivatives, Fair Value
Asset Fair Value	$ 12	$ 9