Financial Derivatives and Risk Management - Fair Value of Derivative Instruments on the Balance Sheet (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Derivatives, Fair Value [Line Items]
Accumulated Other Comprehensive Income (Loss), Cumulative Changes in Net Gain (Loss) from Cash Flow Hedges, Effect Net of Tax	$ 2	$ 3	$ 0
Foreign exchange forward | Cash flow hedging | Other current assets
Derivatives, Fair Value [Line Items]
Forward exchange contracts asset derivative	5	6
Foreign exchange forward | Cash flow hedging | Other current liabilities
Derivatives, Fair Value [Line Items]
Forward exchange contracts liability derivative	6	3
Other Comprehensive Income (Loss) [Member] | Foreign exchange forward | Cash flow hedging
Derivatives, Fair Value [Line Items]
Accumulated Other Comprehensive Income (Loss), Cumulative Changes in Net Gain (Loss) from Cash Flow Hedges, Effect Net of Tax	$ 2	$ 3