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Accumulated Other Comprehensive Income (Loss) - Components of Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) (Detail) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |
Currency Translation Adjustments |  | $ 11 | $ (25)
Derivative Financial Instruments | $ 199 | 12 | (8)
Defined Benefit Plans | (4) | (6) | (7)
Total | 195 | 17 | (40)
Tax Effect [Member] |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |
Derivative Financial Instruments | (77) | (5) | 2
Defined Benefit Plans | 2 | 2 | 1
Total | (75) | (3) | 3
Revenue [Member] |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |
Derivative Financial Instruments | (19) | (26) | (16)
Total | (19) | (26) | (16)
Cost of Revenue [Member] |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |
Derivative Financial Instruments | 295 | 43 | 6
Total | 295 | 43 | 6
Selling, General, and Administrative [Member] |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |
Defined Benefit Plans | (6) | (8) | (8)
Total | $ (6) | (8) | (8)
Other Income (Expense), Net [Member] |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |
Currency Translation Adjustments |  | 11 | (25)
Total |  | $ 11 | $ (25)

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- Definition Amount after tax and reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 30 -Section 45 -Paragraph 20 -Subparagraph (b,c) -URI http://asc.fasb.org/extlink&oid=6915805&loc=d3e32211-110900 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 10A -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=36458714&loc=SL7669646-108580 + Details
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- Definition Amount after tax of reclassification adjustment from accumulated other comprehensive income of accumulated gain (loss) realized from derivative instruments designated and qualifying as the effective portion of cash flow hedges and an entity's share of an equity investee's deferred hedging gain (loss). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=36458714&loc=d3e689-108580 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph c -URI http://asc.fasb.org/extlink&oid=56946850&loc=d3e41638-113959 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=36458714&loc=d3e637-108580 + Details
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