Financial Instruments, Derivatives and Fair Value Measures (Details 3) (USD $) In Millions, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Fair value, asset and liability measures
Long-term Investment Securities	$ 122	$ 119
Equity securities
Fair value, asset and liability measures
Long-term Investment Securities	91	93
Carrying value
Fair value, asset and liability measures
Total long-term debt	(3,395)	(3,397)
Foreign currency forward exchange contracts, receivable position	49	84
Foreign currency forward exchange contracts, (payable) position	(56)	(75)
Interest rate hedge contracts, receivable position	98	87
Carrying value | Equity securities
Fair value, asset and liability measures
Long-term Investment Securities	91	93
Carrying value | Other
Fair value, asset and liability measures
Long-term Investment Securities	31	26
Fair value
Fair value, asset and liability measures
Total long-term debt	(3,918)	(3,930)
Foreign currency forward exchange contracts, receivable position	49	84
Foreign currency forward exchange contracts, (payable) position	(56)	(75)
Interest rate hedge contracts, receivable position	98	87
Fair value | Equity securities
Fair value, asset and liability measures
Long-term Investment Securities	91	93
Fair value | Other
Fair value, asset and liability measures
Long-term Investment Securities	$ 26	$ 24