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Leases - Dislosure Of Lease Expenditure Recognised Explanatory (Detail) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Presentation of leases for lessee [abstract] |  |  |
Depreciation of right-of-use assets | $ 35 | $ 38 | $ 35
System Fund depreciation of right-of-use assets | 4 | 5 | 4
Impairment charge | 16 | 32 |
System Fund impairment | 32 |  |
Derecognition of right-of-use assets and lease liabilities | (22) |  |
Gain on lease termination | (30) |  |
Expense relating to variable lease payments | 7 | 58 | 48
Expense relating to short-term leases and low-value assets | 2 | 3 | 3
Income from sub-leasing right-of-use assets | (1) | (2) | (2)
Recognised in operating (loss)/profit | 43 | 134 | 88
Interest on lease liabilities | 37 | 41 | 39
Total recognised in the Group income statement | $ 80 | $ 175 | $ 127

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- Definition The amount of depreciation of right-of-use assets. [Refer: Depreciation and amortisation expense; Right-of-use assets] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 16 -IssueDate 2020-01-01 -Paragraph 53 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2020-en-r&anchor=para_53_a&doctype=Standard -URIDate 2020-01-01 + Details
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- Definition The amount of the expense relating to variable lease payments not included in the measurement of lease liabilities. Variable lease payments are the portion of payments made by a lessee to a lessor for the right to use an underlying asset during the lease term that varies because of changes in facts or circumstances occurring after the commencement date, other than the passage of time. [Refer: Lease liabilities] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 16 -IssueDate 2020-01-01 -Paragraph 53 -Subparagraph e -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2020-en-r&anchor=para_53_e&doctype=Standard -URIDate 2020-01-01 + Details
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- Definition The amount of income from subleasing right-of-use assets. Sublease is a transaction for which an underlying asset is re-leased by a lessee (‘intermediate lessor’) to a third party, and the lease (‘head lease’) between the head lessor and lessee remains in effect. [Refer: Right-of-use assets] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 16 -IssueDate 2020-01-01 -Paragraph 53 -Subparagraph f -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2020-en-r&anchor=para_53_f&doctype=Standard -URIDate 2020-01-01 + Details
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- Definition The amount of interest expense on lease liabilities. [Refer: Lease liabilities] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 16 -IssueDate 2020-01-01 -Paragraph 53 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2020-en-r&anchor=para_53_b&doctype=Standard -URIDate 2020-01-01 + Details
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- References No definition available. + Details
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- Definition Depreciation right of use assets charged to the system fund. + References No definition available. + Details
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- Definition Derecognition of right-of-use assets and lease liabilities + References No definition available. + Details
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- Definition Expenses Relating To Short Term Leases And Low Value Leases + References No definition available. + Details
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- Definition Gains on lease termination + References No definition available. + Details
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- Definition Impairment charges. + References No definition available. + Details
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- Definition Lease Expenditure Recognised As Operating Expenditure + References No definition available. + Details
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- Definition Lease expenses total. + References No definition available. + Details
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- Definition System Fund impairment of right-of-use assets. + References No definition available. + Details
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