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Financial Derivatives and Risk Management (Fair Value of Derivatives) - Balance Sheet (Details) (Cash Flow Hedging [Member], Foreign Exchange Forward [Member], Designated as Hedging Instrument [Member], USD $) In Millions, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Other Comprehensive Income (Loss) [Member]
Derivatives, Fair Value [Line Items]
Gain (loss) recognized in AOCI, net	$ 0	$ 2
Other Current Assets [Member]
Derivatives, Fair Value [Line Items]
Forward exchange contracts asset derivative	4	5
Other Current Liabilities [Member]
Derivatives, Fair Value [Line Items]
Forward exchange contracts liability derivative	$ 5	$ 6

Accumulated change, net of tax, in accumulated gains and losses from derivative instruments designated and qualifying as the effective portion of cash flow hedges. Includes an entity's share of an equity investee's Increase or Decrease in deferred hedging gains or losses.

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