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Deferred taxation - Recognised and unrecognised amounts in deferred tax assets (Detail) - USD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2024 | Dec. 31, 2023
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items] |  |
Recognised deferred tax assets | $ 4,016 | $ 3,624
Unrecognised deferred tax assets | 5,978 | 6,416
France |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items] |  |
Recognised deferred tax assets | 0 | 0
Unrecognised deferred tax assets | 1,233 | 1,320
Canada |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items] |  |
Recognised deferred tax assets | 331 | 383
Unrecognised deferred tax assets | 511 | 501
US |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items] |  |
Recognised deferred tax assets | 262 | 204
Unrecognised deferred tax assets | 926 | 977
Australia |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items] |  |
Recognised deferred tax assets | 1,132 | 991
Unrecognised deferred tax assets | 563 | 842
Mongolia |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items] |  |
Recognised deferred tax assets | 1,780 | 1,530
Unrecognised deferred tax assets | 68 | 235
Other countries |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items] |  |
Recognised deferred tax assets | 511 | 516
Unrecognised deferred tax assets | 2,677 | 2,541
UK |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items] |  |
Accumulated foreign tax credits | 1,400 | 1,300
Tax losses | Mongolia |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items] |  |
Recognised deferred tax assets | $ 419 | 310
Deferred tax loss recovery period | 8 years |
Realised or unrealised capital losses |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items] |  |
Recognised deferred tax assets | $ 249 | 543
Unrecognised deferred tax assets | $ 2,561 | $ 2,455
Deferred tax loss recovery period | 1 year |

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- Definition The amounts of income taxes recoverable in future periods in respect of: (a) deductible temporary differences; (b) the carryforward of unused tax losses; and (c) the carryforward of unused tax credits. [Refer: Temporary differences [member]; Unused tax credits [member]; 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 g -Clause i -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=12&code=ifrs-tx-2024-en-r&anchor=para_81_g_i&doctype=Standard -URIDate 2024-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 54 -Subparagraph o -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_54_o&doctype=Standard -URIDate 2024-03-27 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 56 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_56&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 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 Deferred tax loss recovery minimum period. + References No definition available. + Details
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- Definition Foreign Tax Credits + References No definition available. + Details
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- Details
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- Details
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