Fair Value of Derivative Instruments (Detail) - USD ($) $ in Millions	Mar. 31, 2016	Dec. 31, 2015
Derivatives, Fair Value [Line Items]
Asset Derivatives	$ 136	$ 243
Liability Derivatives	182	216
Derivatives Designated as Hedging Instruments
Derivatives, Fair Value [Line Items]
Asset Derivatives	32	69
Liability Derivatives	21	99
Derivatives Designated as Hedging Instruments \| Currency exchange contracts
Derivatives, Fair Value [Line Items]
Asset Derivatives	4	20
Liability Derivatives	7	7
Derivatives Designated as Hedging Instruments \| Commodity contracts
Derivatives, Fair Value [Line Items]
Asset Derivatives	11	37
Liability Derivatives	10	35
Derivatives Designated as Hedging Instruments \| Interest rate contracts
Derivatives, Fair Value [Line Items]
Asset Derivatives	17	12
Liability Derivatives	4	57
Derivatives Not Designated as Hedging Instruments
Derivatives, Fair Value [Line Items]
Asset Derivatives	104	174
Liability Derivatives	161	117
Derivatives Not Designated as Hedging Instruments \| Currency exchange contracts
Derivatives, Fair Value [Line Items]
Asset Derivatives	34	61
Liability Derivatives	88	33
Derivatives Not Designated as Hedging Instruments \| Commodity contracts
Derivatives, Fair Value [Line Items]
Asset Derivatives	33	70
Liability Derivatives	48	56
Derivatives Not Designated as Hedging Instruments \| Interest rate contracts
Derivatives, Fair Value [Line Items]
Asset Derivatives	37	43
Liability Derivatives	$ 25	$ 28

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.

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=51824906&loc=SL20225862-175312

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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.

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- Definition

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