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Property, plant and equipment - Summary of right-of-use assets (Detail) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023
Disclosure of detailed information about property, plant and equipment [Line Items] |  |
Net book value, beginning of period | $ 1,178 | $ 1,003
Adjustment on currency translation | (61) | 15
Additions | 570 | 516
Depreciation for the year | (478) | (393)
Net impairment reversal/(charges) | 5 | (8)
Disposals | 0 | (1)
Transfers and other movements | 14 | 46
Net book value, end of period | 1,228 | 1,178
Land and buildings |  |
Disclosure of detailed information about property, plant and equipment [Line Items] |  |
Net book value, beginning of period | 543 | 515
Adjustment on currency translation | (37) | 11
Additions | 150 | 96
Depreciation for the year | (125) | (88)
Net impairment reversal/(charges) | 0 | (1)
Disposals | 0 | 0
Transfers and other movements | (7) | 10
Net book value, end of period | 524 | 543
Plant and equipment |  |
Disclosure of detailed information about property, plant and equipment [Line Items] |  |
Net book value, beginning of period | 635 | 488
Adjustment on currency translation | (24) | 4
Additions | 420 | 420
Depreciation for the year | (353) | (305)
Net impairment reversal/(charges) | 5 | (7)
Disposals | 0 | (1)
Transfers and other movements | 21 | 36
Net book value, end of period | $ 704 | $ 635

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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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Balance Type: | debit
Period Type: | duration

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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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Period Type: | duration

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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 net exchange differences arising on the translation of the financial statements from the functional currency into a different presentation currency, including the translation of a foreign operation into the presentation currency of the reporting entity. [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 Impairment Loss On Right-Of-Use Assets + References No definition available. + Details
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- Definition Increase (Decrease) Through Transfers And Other Movements, Right-Of-Use Assets + References No definition available. + Details
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- Details
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- Details
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