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Summary of Significant Accounting Policies - Additional Information (Detail) - USD ($) shares in Millions, $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Significant Accounting Policies [Line Items] |  |  |
Maturity period of investments description | three months or less |  |
Additional inventory reserve charges | $ 659 | $ 49 | $ 114
Inventory reserves total | $ 843 | $ 644 |
Percentage of inventory reserve | 27.70% | 17.70% |
Depreciation expense related to property, plant and equipment | $ 355 | $ 349 | 359
Impairment of long-lived assets | 2,209 |  |
Asset impairment charges | 56 | 0 | 0
Cash payment for acquisition | 180 | 280 | 86
Net foreign currency transaction gains (losses) | (36) | (52) | $ (3)
Net revenue recognized from performance obligations satisfied in previous periods | 62 | 65 |
Remaining performance obligations | 4,286 |  |
Net allowances for doubtful accounts | $ 132 | $ 161 |
Anti-dilutive stock options outstanding | 20 | 20 | 12
Property, Plant and Equipment [Member] |  |  |
Significant Accounting Policies [Line Items] |  |  |
Impairment of long-lived assets | $ 252 | $ 21 | $ 10
Minimum [Member] |  |  |
Significant Accounting Policies [Line Items] |  |  |
Derivative, term of contract | 2 months |  |
Maximum [Member] |  |  |
Significant Accounting Policies [Line Items] |  |  |
Derivative, term of contract | 24 months |  |

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- Definition Amount of allowance for credit loss on accounts receivable, classified as current. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(4) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=118936363&loc=d3e5074-111524 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=118955202&loc=SL82895884-210446 + Details
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