v3.25.4

Income taxes - Schedule of Income Taxes Paid (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023
Effective Income Tax Rate Reconciliation [Line Items] |  |  |
Swiss | $ 0 | $ 0 | $ 0
Income taxes paid | 369 | 302 | 211
U.S. |  |  |
Effective Income Tax Rate Reconciliation [Line Items] |  |  |
Foreign | 230 | 196 | 142
Canada |  |  |
Effective Income Tax Rate Reconciliation [Line Items] |  |  |
Foreign | $ 139 | $ 106 | $ 69

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