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Financial instruments - Summary of changes in fair value of Level 3 financial assets and financial liabilities (Detail) - Level 3 - USD ($) $ in Millions | 6 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2024 | Dec. 31, 2023
Disclosure of detailed information about financial instruments [line items] |  |
Opening balance | $ 147 | $ 131
Currency translation adjustments | (1) | (2)
Total realised gains/(losses) included in consolidated sales revenue | 0 | 12
Total realised gains/(losses) included in net operating costs | (11) | (18)
Total unrealised gains included in net operating costs | 94 | 43
Total unrealised gains/(losses) transferred into other comprehensive income through cash flow hedges | 9 | (1)
Additions to financial assets/(liabilities) | 50 | 29
Disposals/maturity of financial instruments | (16) | (47)
Closing balance | 272 | 147
Net gains included in the income statement for assets and liabilities held at period end | $ 84 | $ 31

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- Definition Gains (losses) recognised in profit or loss for assets and liabilities held. + References No definition available. + Details
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- Definition Total realised gains or losses related to Level 3 financial assets and liabilities included in consolidated sales revenue. + References No definition available. + Details
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- Definition Total realised gains or losses related to Level 3 financial assets and liabilities included in net operating costs. + References No definition available. + Details
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- Definition Total unrealised gains related to Level 3 financial assets and liabilities included in net operating costs. + References No definition available. + Details
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