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Assets and liabilities sold - Additional Information (Detail) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Assets and liabilities classified as held for sale [line items] |  |  |
Gain on Disposal of Assets and Liabilities Classified as Held For Sale | $ 11 | $ 16 | $ 21
Proceeds From Disposal Of Noncurrent Assets | 44 | 1 |
EMEAA [member] |  |  |
Assets and liabilities classified as held for sale [line items] |  |  |
Gain on Disposal of Assets and Liabilities Classified as Held For Sale |  | 3 |
United States [member] |  |  |
Assets and liabilities classified as held for sale [line items] |  |  |
Gain on Disposal of Assets and Liabilities Classified as Held For Sale | 0 |  |
Proceeds From Disposal Of Noncurrent Assets | 46 |  |
Noncurrent assets disposed | 2 |  |
Net assets held for sale disposed off consideration payable | 44 |  |
Decrease through classified as held for sale property plant and equipment | 45 |  |
Decrease through classified as held for sale lease liabilities | 3 |  |
Net cash inflow through classified as held for sale | $ 44 |  |
Holiday Inn Melbourne Airport [member] | EMEAA [member] |  |  |
Assets and liabilities classified as held for sale [line items] |  |  |
Gain on Disposal of Assets and Liabilities Classified as Held For Sale |  | (3) |
Proceeds From Disposal Of Noncurrent Assets |  | $ 2 |

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- Definition The decrease in property, plant and equipment through classification as held for sale or inclusion in a disposal group classified as held for sale. [Refer: Disposal groups classified as held for sale [member]; Property, plant and equipment; Disposal groups classified as held for sale [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2021-01-01 -Paragraph 73 -Subparagraph e -Clause ii -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=16&code=ifrs-tx-2021-en-r&anchor=para_73_e_ii&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition The amount of operating income (expense) that the entity does not separately disclose in the same statement or note. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2021-01-01 -Paragraph 85 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_85&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition The cash inflow from the disposal of non-current assets or disposal groups classified as held for sale and discontinued operations. [Refer: Discontinued operations [member]; Disposal groups classified as held for sale [member]; Non-current assets or disposal groups classified as held for sale] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 7 -IssueDate 2021-01-01 -Paragraph 16 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=7&code=ifrs-tx-2021-en-r&anchor=para_16&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition Decrease through classified as held for sale lease liabilities. + References No definition available. + Details
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- Definition Disclosure Of Assets And Liabilitites Classified As Held For Sale + References No definition available. + Details
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- Definition Net Assets held for sale disposed off consideration receivable. + References No definition available. + Details
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- Definition Net cash inflow through classified as held for sale. + References No definition available. + Details
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- Definition Non current assets disposed. + References No definition available. + Details
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- Details
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