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Derivative Financial Instruments (Schedule of Notional Amounts of Foreign Currency Derivatives) (Details) (Foreign Exchange Contract [Member], USD $)
In Millions, unless otherwise specified |
Sep. 30, 2014
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Dec. 31, 2013
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|---|---|---|
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Foreign Exchange Contract [Member]
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| Derivative [Line Items] | ||
| Notional Value | $ 608 | $ 869 |