Employee compensation and benefits - Income statement charge (Details) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
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| Employee Compensation And Benefits [Abstract] | |||
| Defined benefit pension plans | $ (227) | $ (116) | $ (151) |
| Defined contribution pension plans | 1,015 | 933 | 874 |
| Pension plans | 788 | 817 | 723 |
| Defined benefit and contribution healthcare plans | 38 | 34 | 34 |
| Post-employment benefits | $ 826 | $ 851 | $ 757 |
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- Definition Employee Compensation And Benefits [Abstract] No definition available.
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- Definition Post-Employment Benefit Expense, Defined Benefit And Contribution Healthcare Plans No definition available.
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- Definition Post-Employment Benefit Expense, Defined Benefit Plans, Defined Contribution Plans, And Defined Benefit And Contribution Healthcare Plans No definition available.
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- Definition Post-employment Benefit Expense, Defined Benefit Plans And Defined Contribution Plans No definition available.
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- References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- References Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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