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Intangibles, Net - Additional Information (Detail) |  | 3 Months Ended | 12 Months Ended
--- | --- | --- | ---
Dec. 31, 2019 USD ($) ReportingUnit | Mar. 31, 2020 USD ($) | Dec. 31, 2020 USD ($) ReportingUnit | Dec. 31, 2019 USD ($) | Dec. 31, 2018 USD ($)
Finite Lived Intangible Assets [Line Items] |  |  |  |  |
Number of reporting units | ReportingUnit | 5 |  | 4 |  |
Impairments of long-lived assets other than goodwill |  | $ 90,000,000 | $ 90,000,000 |  |
Tax benefit related to long-lived assets impairments |  | $ 4,000,000 | 4,000,000 |  |
Impairment of intangible assets |  |  | 84,000,000 |  | $ 0
Identified intangible assets | $ 90,000,000 |  |  | $ 90,000,000 |
Amortization Of Intangible Assets |  |  | 4,000,000 | 19,000,000 | $ 20,000,000
Maximum [Member] |  |  |  |  |
Finite Lived Intangible Assets [Line Items] |  |  |  |  |
Identified intangible assets |  |  | 1,000,000 |  |
United States [Member] |  |  |  |  |
Finite Lived Intangible Assets [Line Items] |  |  |  |  |
Impairment of intangible assets |  |  | 62,000,000 | 34,000,000 |
International [Member] |  |  |  |  |
Finite Lived Intangible Assets [Line Items] |  |  |  |  |
Impairment of intangible assets |  |  | $ 22,000,000 | $ 4,000,000 |
Long-lived Assets Not Recoverable [Member] |  |  |  |  |
Finite Lived Intangible Assets [Line Items] |  |  |  |  |
Number of reporting units | ReportingUnit |  |  | 3 |  |

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- Definition Tax benefit related to long-lived assets impairments. + References No definition available. + Details
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- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3602-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274 + Details
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- Definition Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 926 -SubTopic 20 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=120154696&loc=d3e54445-107959 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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