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Derivative Instruments and Hedging Activities - Effect of Derivative Instruments Designated as Fair Value Hedges and Not Designated as Hedges on Consolidated Statement of Income (Loss) (Detail) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Derivatives not designated as hedges | Foreign exchange contracts | Cost of services/sales |  |  |
Derivative Instruments Gain Loss [Line Items] |  |  |
Gain (Loss) Recognized in Income | $ (11) | $ (29) | $ (5)
Cash Flow Hedging | Derivatives designated as hedges |  |  |
Derivative Instruments Gain Loss [Line Items] |  |  |
Gain (Loss) Recognized in Income | (417) | 488 | (45)
Cash Flow Hedging | Derivatives designated as hedges | Cross currency swaps | Cost of services/sales |  |  |
Derivative Instruments Gain Loss [Line Items] |  |  |
Gain (Loss) Recognized in Income | (422) | 493 | (35)
Cash Flow Hedging | Derivatives designated as hedges | Foreign exchange contracts | Cost of services/sales |  |  |
Derivative Instruments Gain Loss [Line Items] |  |  |
Gain (Loss) Recognized in Income | $ 5 | $ (5) | $ (10)

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- Definition Amount of increase (decrease) in the fair value of derivatives recognized in the income statement. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4A -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=125515794&loc=SL5618551-113959 + 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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