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Tax - Summary of Unrecognised Deferred Tax Position (Detail) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023
Unrecognised deferred tax position [line items] |  |
Unrecognised deferred tax | $ 274 | $ 262
Gross carrying amount | 1,080 | 1,078
Revenue losses [member] |  |
Unrecognised deferred tax position [line items] |  |
Gross carrying amount | 432 | 450
Unrecognised deferred tax | 75 | 79
Capital losses [member] |  |
Unrecognised deferred tax position [line items] |  |
Gross carrying amount | 580 | 580
Unrecognised deferred tax | 146 | 146
Total losses [member] |  |
Unrecognised deferred tax position [line items] |  |
Gross carrying amount | 1,012 | 1,030
Unrecognised deferred tax | 221 | 225
Tax credits [member] |  |
Unrecognised deferred tax position [line items] |  |
Gross carrying amount | 46 | 32
Unrecognised tax credits deferred tax | 46 | 32
Other [member] |  |
Unrecognised deferred tax position [line items] |  |
Unrecognised deferred tax | 7 | 5
Gross carrying amount | $ 22 | $ 16

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- Definition The amount of deductible temporary differences for which no deferred tax asset is recognised in the statement of financial position. [Refer: Temporary differences [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 12 -IssueDate 2024-01-01 -Paragraph 81 -Subparagraph e -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=12&code=ifrs-tx-2024-en-r&anchor=para_81_e&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The amount of unused tax credits for which no deferred tax asset is recognised in the statement of financial position. [Refer: Unused tax credits [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 12 -IssueDate 2024-01-01 -Paragraph 81 -Subparagraph e -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=12&code=ifrs-tx-2024-en-r&anchor=para_81_e&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The amount of unused tax losses for which no deferred tax asset is recognised in the statement of financial position. [Refer: Unused tax losses [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 12 -IssueDate 2024-01-01 -Paragraph 81 -Subparagraph e -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=12&code=ifrs-tx-2024-en-r&anchor=para_81_e&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition Gross temporary differences and unused tax losses for which no deferred tax asset is recognised. + References No definition available. + Details
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- Definition Unrecognised deferred tax. + References No definition available. + Details
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- Definition Line items represent unrecognised deferred tax position. + References No definition available. + Details
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- Definition Unrecognised tax credits deferred tax. + References No definition available. + Details
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