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Financial risk management - D.2.1. Debt denominated in US Dollars and other currencies (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2025 | Dec. 31, 2024
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |
Debt | $ 6,886 | $ 5,815
Reasonably possible change in risk variable, percent | 1.00% |
Foreign currency risk |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |
Debt | $ 6,886 | 5,815
Reasonably possible change in risk variable, percent | 10.00% |
Reasonably possible increase (decrease) in risk variable, impact on profit before tax | $ (81) | (8)
Debt denominated in US dollars | Foreign currency risk |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |
Debt | 3,293 | 3,429
Total debt denominated in other currencies | Foreign currency risk |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |
Debt | 3,592 | 2,386
Guatemala | Foreign currency risk |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |
Debt | 865 | 496
Colombia | Foreign currency risk |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |
Debt | 620 | 554
Bolivia | Foreign currency risk |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |
Debt | 128 | 153
Paraguay | Foreign currency risk |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |
Debt | 565 | 233
El Salvador | Foreign currency risk |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |
Debt | 248 | 71
Panama | Foreign currency risk |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |
Debt | 734 | 734
Luxembourg (COP denominated) | Foreign currency risk |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |
Debt | 0 | 33
Ecuador | Foreign currency risk |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |
Debt | 83 |
Uruguay | Foreign currency risk |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |
Debt | 201 |
Costa Rica | Foreign currency risk |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |
Debt | $ 148 | $ 113

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