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Asset Impairment - Summary of Goodwill by Reportable Segment (Parenthetical) (Detail) $ in Millions | Dec. 31, 2019 USD ($)
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United States [Member] |
Goodwill [Line Items] |
Goodwill, accumulated impairment | $ 393
Canada [Member] |
Goodwill [Line Items] |
Goodwill, accumulated impairment | 27
International [Member] |
Goodwill [Line Items] |
Goodwill, accumulated impairment | $ 54

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- Definition Amount of accumulated impairment loss for an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=121556970&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121556970&loc=d3e13816-109267 + 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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- Details
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- Details
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- Details
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