Tax provision - Major components of income tax (Details) - USD ($) $ in Millions |
12 Months Ended | |
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Dec. 31, 2025 |
Dec. 31, 2024 |
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| Income Tax Recognized In Profit Or Loss [Abstract] | ||
| Current tax expense (income) | $ (15) | $ 118 |
| Deferred tax expense (income) recognised in profit or loss | (218) | (74) |
| Tax expense (income) | 233 | (43) |
| Income Tax Expense Recognized In Other Comprehensive Income [Abstract] | ||
| Income tax relating to components of other comprehensive income | 5 | 3 |
| Income Tax Expense (Income) Recognized In Profit Or Loss And Comprehensive Income | $ (228) | $ 46 |
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- Definition The amount of income taxes payable (recoverable) in respect of the taxable profit (tax loss) for a period. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition The amount of tax expense or income relating to changes in deferred tax liabilities and deferred tax assets, recognised in profit or loss. [Refer: Deferred tax assets; Deferred tax expense (income); Deferred tax liabilities] Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The aggregate amount included in the determination of profit (loss) for the period in respect of current tax and deferred tax. [Refer: Current tax expense (income); Deferred tax expense (income)] Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The amount of income tax relating to amounts recognised in other comprehensive income. [Refer: Other comprehensive income] Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Income Tax Expense (Income) Recognized In Profit Or Loss And Comprehensive Income No definition available.
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- Definition Income Tax Expense Recognized In Other Comprehensive Income No definition available.
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- Definition Income Tax Recognized In Profit Or Loss No definition available.
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