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Financial Instruments (Notional Amounts of Derivatives) (Details) - USD ($) $ in Millions | Sep. 30, 2016 | Dec. 31, 2015
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Designated as Hedging Instrument [Member] | Foreign Currency Contract [Member] |  |
Derivative [Line Items] |  |
Derivative notional amounts | $ 0 | $ 10
Designated as Hedging Instrument [Member] | Commodity Contract [Member] |  |
Derivative [Line Items] |  |
Derivative notional amounts | 26 | 356
Not Designated as Hedging Instrument [Member] | Foreign Currency Contract [Member] |  |
Derivative [Line Items] |  |
Derivative notional amounts | 7,758 | 8,065
Not Designated as Hedging Instrument [Member] | Commodity Contract [Member] |  |
Derivative [Line Items] |  |
Derivative notional amounts | $ 13 | $ 70

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- Definition Aggregate notional amount specified by the derivative(s). Expressed as an absolute value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 12 -Section 13 -Sentence Column B + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Details
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- Details
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- Details
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- Details
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