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Financial Instruments and Risk Management - Effect on Consolidated Statements of Income of Derivative Instruments (Detail) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2020 | Dec. 31, 2019
Derivative Instruments, Gain (Loss) [Line Items] |  |
Gain (loss) deferred in OCI on derivative | $ 61 | $ (3)
Gain (loss) reclassified from OCI into earnings |  | (79)
Foreign Exchange Forward Contracts [Member] | Cost of Sales [Member] | Cash Flow Hedging [Member] |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Gain (loss) deferred in OCI on derivative | 29 | (1)
Gain (loss) reclassified from OCI into earnings | (2) | (36)
Foreign Exchange Forward Contracts [Member] | Selling, General and Administrative [Member] | Cash Flow Hedging [Member] |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Gain (loss) deferred in OCI on derivative | 3 |
Gain (loss) reclassified from OCI into earnings | 1 | (4)
Foreign Exchange Forward Contracts [Member] | Research and Development [Member] | Cash Flow Hedging [Member] |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Gain (loss) deferred in OCI on derivative | 11 | (1)
Gain (loss) reclassified from OCI into earnings | 2 | (15)
Currency Collars [Member] | Cost of Sales [Member] | Cash Flow Hedging [Member] |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Gain (loss) deferred in OCI on derivative | 11 | (1)
Gain (loss) reclassified from OCI into earnings | (1) | (15)
Currency Collars [Member] | Selling, General and Administrative [Member] | Cash Flow Hedging [Member] |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Gain (loss) deferred in OCI on derivative | 1 |
Gain (loss) reclassified from OCI into earnings |  | (2)
Currency Collars [Member] | Research and Development [Member] | Cash Flow Hedging [Member] |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Gain (loss) deferred in OCI on derivative | $ 6 |
Gain (loss) reclassified from OCI into earnings |  | $ (7)

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- Definition Gain loss deferred in other comprehensive income on derivative. + References No definition available. + Details
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- Definition The effective portion of net gain (loss) reclassified from accumulated other comprehensive income into income on derivative instruments designated and qualifying as hedging instruments. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4D -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5624177-113959 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5624171-113959 + Details
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