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Fair Value of Derivative Instruments (Detail) - USD ($) $ in Millions | Jun. 30, 2015 | Dec. 31, 2014
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Derivatives, Fair Value [Line Items] |  |
Asset Derivatives | $ 311 | $ 978
Liability Derivatives | 471 | 349
Derivatives Designated as Hedging Instruments |  |
Derivatives, Fair Value [Line Items] |  |
Asset Derivatives | 87 | 94
Liability Derivatives | 119 | 92
Derivatives Designated as Hedging Instruments | Currency exchange contracts |  |
Derivatives, Fair Value [Line Items] |  |
Asset Derivatives | 25 | 69
Liability Derivatives | 26 | 17
Derivatives Designated as Hedging Instruments | Commodity contracts |  |
Derivatives, Fair Value [Line Items] |  |
Asset Derivatives | 43 | 12
Liability Derivatives | 85 | 33
Derivatives Designated as Hedging Instruments | Interest rate contracts |  |
Derivatives, Fair Value [Line Items] |  |
Asset Derivatives | 19 | 13
Liability Derivatives | 8 | 42
Derivatives Not Designated as Hedging Instruments |  |
Derivatives, Fair Value [Line Items] |  |
Asset Derivatives | 224 | 884
Liability Derivatives | 352 | 257
Derivatives Not Designated as Hedging Instruments | Currency exchange contracts |  |
Derivatives, Fair Value [Line Items] |  |
Asset Derivatives | 66 | 735
Liability Derivatives | 247 | 24
Derivatives Not Designated as Hedging Instruments | Commodity contracts |  |
Derivatives, Fair Value [Line Items] |  |
Asset Derivatives | 107 | 90
Liability Derivatives | 72 | 194
Derivatives Not Designated as Hedging Instruments | Interest rate contracts |  |
Derivatives, Fair Value [Line Items] |  |
Asset Derivatives | 51 | 59
Liability Derivatives | $ 33 | $ 39

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- Definition Fair value, before effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets not subject to a master netting arrangement and elected not to be offset. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=34720828&loc=SL20225862-175312 + Details
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- Definition Fair value, before effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities not subject to a master netting arrangement and elected not to be offset. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=34720828&loc=SL20225862-175312 + Details
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