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Leases - Disclosure of quantitative information about right-of-use assets (Detail) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Disclosure of quantitative information about right-of-use assets [line items] |  |  |
Beginning balance, Right-of-use assets | $ 273 | $ 280 |
Provided | 22 | 22 | $ 25
System Fund expense, Right-of-use assets | (2) | 2 | 3
Ending balance, Right-of-use assets | 276 | 273 | 280
Accumulated depreciation, amortisation and impairment [member] |  |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |  |
Beginning balance, Right-of-use assets | (316) | (343) |
Provided | (22) | (22) |
System Fund expense, Right-of-use assets | 2 | (2) |
Transfer, Right-of-use assets | 21 |  |
Terminations, Right-of-use assets | 12 | 52 |
Exchange and other adjustments, Right-of-use assets | 5 | (1) |
Ending balance, Right-of-use assets | (298) | (316) | (343)
Gross carrying amount [member] |  |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |  |
Beginning balance, Right-of-use assets | 589 | 623 |
Additions and other re-measurements, Right-of-use assets | 33 | 17 |
Transfer, Right-of-use assets | (31) |  |
Terminations, Right-of-use assets | (12) | (52) |
Exchange and other adjustments, Right-of-use assets | (5) | 1 |
Ending balance, Right-of-use assets | 574 | 589 | 623
Land and buildings [member] |  |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |  |
Beginning balance, Right-of-use assets | 268 | 277 |
Ending balance, Right-of-use assets | 272 | 268 | 277
Land and buildings [member] | Accumulated depreciation, amortisation and impairment [member] |  |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |  |
Beginning balance, Right-of-use assets | (266) | (294) |
Provided | (21) | (22) |
System Fund expense, Right-of-use assets | 2 | (2) |
Transfer, Right-of-use assets | 8 | 2 |
Terminations, Right-of-use assets | 11 | 51 |
Exchange and other adjustments, Right-of-use assets | 5 | (1) |
Ending balance, Right-of-use assets | (261) | (266) | (294)
Land and buildings [member] | Gross carrying amount [member] |  |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |  |
Beginning balance, Right-of-use assets | 534 | 571 |
Additions and other re-measurements, Right-of-use assets | 28 | 15 |
Transfer, Right-of-use assets | (13) | (2) |
Terminations, Right-of-use assets | (11) | (51) |
Exchange and other adjustments, Right-of-use assets | (5) | 1 |
Ending balance, Right-of-use assets | 533 | 534 | 571
Investment property [member] |  |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |  |
Beginning balance, Right-of-use assets | 3 | 3 |
Ending balance, Right-of-use assets | 2 | 3 | 3
Investment property [member] | Accumulated depreciation, amortisation and impairment [member] |  |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |  |
Beginning balance, Right-of-use assets | (49) | (47) |
Transfer, Right-of-use assets | 13 | (2) |
Ending balance, Right-of-use assets | (36) | (49) | (47)
Investment property [member] | Gross carrying amount [member] |  |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |  |
Beginning balance, Right-of-use assets | 52 | 50 |
Transfer, Right-of-use assets | (14) | 2 |
Ending balance, Right-of-use assets | 38 | 52 | 50
Other [member] |  |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |  |
Beginning balance, Right-of-use assets | 2 |  |
Ending balance, Right-of-use assets | 2 | 2 |
Other [member] | Accumulated depreciation, amortisation and impairment [member] |  |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |  |
Beginning balance, Right-of-use assets | (1) | (2) |
Provided | (1) |  |
Terminations, Right-of-use assets | 1 | 1 |
Ending balance, Right-of-use assets | (1) | (1) | (2)
Other [member] | Gross carrying amount [member] |  |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |  |
Beginning balance, Right-of-use assets | 3 | 2 |
Additions and other re-measurements, Right-of-use assets | 5 | 2 |
Transfer, Right-of-use assets | (4) |  |
Terminations, Right-of-use assets | (1) | (1) |
Ending balance, Right-of-use assets | $ 3 | $ 3 | $ 2

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- Definition The amount of additions to right-of-use assets. [Refer: Right-of-use assets] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 16 -IssueDate 2024-01-01 -Paragraph 53 -Subparagraph h -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2024-en-r&anchor=para_53_h&doctype=Standard -URIDate 2024-03-27 + Details
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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 2024-01-01 -Paragraph 53 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2024-en-r&anchor=para_53_a&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table. + References No definition available. + Details
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- Definition The decrease in right-of-use assets resulting from disposals. [Refer: Right-of-use assets] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 16 -IssueDate 2024-01-01 -Paragraph 73 -Subparagraph e -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=16&code=ifrs-tx-2024-en-r&anchor=para_73_e&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The increase (decrease) in right-of-use assets resulting from changes that the entity does not separately disclose in the same statement or note. [Refer: Right-of-use assets] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 16 -IssueDate 2024-01-01 -Paragraph 73 -Subparagraph e -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=16&code=ifrs-tx-2024-en-r&anchor=para_73_e&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The increase (decrease) in right-of-use assets resulting from transfers. [Refer: Right-of-use assets] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 16 -IssueDate 2024-01-01 -Paragraph 73 -Subparagraph e -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=16&code=ifrs-tx-2024-en-r&anchor=para_73_e&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The amount of assets that represent a lessee's right to use an underlying asset for the lease term that do not meet the definition of investment property. Underlying asset is an asset that is the subject of a lease, for which the right to use that asset has been provided by a lessor to a lessee. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 16 -IssueDate 2024-01-01 -Paragraph 53 -Subparagraph j -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2024-en-r&anchor=para_53_j&doctype=Standard -URIDate 2024-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 16 -IssueDate 2024-01-01 -Paragraph 47 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2024-en-r&anchor=para_47_a&doctype=Standard -URIDate 2024-03-27 + 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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