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Hedges and Derivative Financial Instruments (Schedule of Outstanding Derivative Contracts) (Details) (USD $) In Millions, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2013 | Dec. 31, 2012
Derivatives, Fair Value [Line Items] |  |
Derivative Assets | $ 30 | $ 30
Derivative Liabilities | 55 | 44
Derivative Asset, Current | 28 | 26
Derivative Asset, Noncurrent | 2 | 4
Total derivatives, hedge assets at fair value | 30 | 30
Derivative Liability, Current | 54 | 43
Derivative Liability, Noncurrent | 1 | 1
Total derivatives, hedge liabilities at fair value | 55 | 44
Number of Interest Rate Derivatives Held | 0 | 0
Designated as Hedging Instrument |  |
Derivatives, Fair Value [Line Items] |  |
Foreign exchange forward/options, hedge assets | 16 | 8
Foreign Exchange Forwards/Options, Hedge Liability at Fair Value | 10 | 12
Commodity Swaps/Options, Hedge Assets at Fair Value | 8 | 11
Commodity Swaps/Options, Hedge Liabilities at Fair Value | 13 | 9
Total derivatives accounted for as hedges, hedge assets at fair value | 24 | 19
Total derivatives accounted for as hedges, hedge liabilities at fair value | 23 | 21
Maximum term of foreign exchange forwards/options, in months | 14 months | 18 months
Maximum term of commodity swaps/options, in months | 36 months | 24 months
Not Designated as Hedging Instrument |  |
Derivatives, Fair Value [Line Items] |  |
Foreign Exchange Forwards/Options, Hedge Assets at Fair Value | 6 | 11
Foreign Exchange Forwards/Options, Hedge Liabilities at Fair Value | 32 | 23
Commodity swaps/options, hedge assets at fair value | 0 | 0
Commodity Swaps/Options, hedge liabiilities at Fair Value | 0 | 0
Total derivatives not accounted for as hedges, hedge assets at fair value | 6 | 11
Total derivatives not accounted for as hedges, hedge liabilities at fair value | 32 | 23
Maximum term of foreign exchange forwards/options, in months | 12 months | 13 months
Maximum term of commodity swaps/options, in months | 4 months | 12 months
Foreign Exchange Contract | Designated as Hedging Instrument |  |
Derivatives, Fair Value [Line Items] |  |
Derivative Asset, Notional Amount | 744 | 1,101
Foreign Exchange Contract | Not Designated as Hedging Instrument |  |
Derivatives, Fair Value [Line Items] |  |
Derivative Asset, Notional Amount | 1,274 | 1,522
Commodity Contract | Designated as Hedging Instrument |  |
Derivatives, Fair Value [Line Items] |  |
Derivative Asset, Notional Amount | 363 | 354
Commodity Contract | Not Designated as Hedging Instrument |  |
Derivatives, Fair Value [Line Items] |  |
Derivative Asset, Notional Amount | $ 1 | $ 6

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