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Financial risk management objectives and policies - Narrative (Details) | 12 Months Ended
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Dec. 31, 2025
Algerian Dinar (DZD), Kenyan Shilling (KES), Egyptian Pound (EGP), Nigerian Naira (NGN) and Ugandan Shilling (UGX) |
Disclosure of risk management strategy related to hedge accounting [line items] |
Percentage of reasonably possible increase in risk assumption | 5.00%
Percentage of reasonably possible decrease in risk assumption | 5.00%
Euro (EUR), Ghanaian Cedi (GHS), West African CFA franc (XOF) and Moroccan Dirham (MAD) |
Disclosure of risk management strategy related to hedge accounting [line items] |
Percentage of reasonably possible increase in risk assumption | 10.00%
Percentage of reasonably possible decrease in risk assumption | 10.00%
Algerian Dinar (DZD), Moroccan Dirham (MAD), Egyptian Pound (EGP) and Nigerian Naira (NGN) |
Disclosure of risk management strategy related to hedge accounting [line items] |
Percentage of reasonably possible increase in risk assumption | 5.00%
Percentage of reasonably possible decrease in risk assumption | 5.00%
Kenyan Shilling (KES), Ghanaian Cedi (GHS), Ugandan Shilling (UGX) and United Arab Emirates Dirham (AED) |
Disclosure of risk management strategy related to hedge accounting [line items] |
Percentage of reasonably possible increase in risk assumption | 10.00%
Percentage of reasonably possible decrease in risk assumption | 10.00%
Bottom of Range |
Disclosure of risk management strategy related to hedge accounting [line items] |
Percentage increase in functional currency rate | 5.00%
Percentage decrease in functional currency rate | 5.00%
Bottom of Range | Algerian Dinar (DZD), Kenyan Shilling (KES), Egyptian Pound (EGP), Nigerian Naira (NGN) and Ugandan Shilling (UGX) |
Disclosure of risk management strategy related to hedge accounting [line items] |
Actual valuation fluctuation percentage | (6.40%)
Bottom of Range | Euro (EUR), Ghanaian Cedi (GHS), West African CFA franc (XOF) and Moroccan Dirham (MAD) |
Disclosure of risk management strategy related to hedge accounting [line items] |
Actual valuation fluctuation percentage | (28.50%)
Bottom of Range | Algerian Dinar (DZD), Moroccan Dirham (MAD), Egyptian Pound (EGP) and Nigerian Naira (NGN) |
Disclosure of risk management strategy related to hedge accounting [line items] |
Actual valuation fluctuation percentage | 1.90%
Bottom of Range | Kenyan Shilling (KES), Ghanaian Cedi (GHS), Ugandan Shilling (UGX) and United Arab Emirates Dirham (AED) |
Disclosure of risk management strategy related to hedge accounting [line items] |
Actual valuation fluctuation percentage | (19.20%)
Top of Range |
Disclosure of risk management strategy related to hedge accounting [line items] |
Percentage increase in functional currency rate | 10.00%
Percentage decrease in functional currency rate | 10.00%
Top of Range | Algerian Dinar (DZD), Kenyan Shilling (KES), Egyptian Pound (EGP), Nigerian Naira (NGN) and Ugandan Shilling (UGX) |
Disclosure of risk management strategy related to hedge accounting [line items] |
Actual valuation fluctuation percentage | (0.20%)
Top of Range | Euro (EUR), Ghanaian Cedi (GHS), West African CFA franc (XOF) and Moroccan Dirham (MAD) |
Disclosure of risk management strategy related to hedge accounting [line items] |
Actual valuation fluctuation percentage | (9.80%)
Top of Range | Algerian Dinar (DZD), Moroccan Dirham (MAD), Egyptian Pound (EGP) and Nigerian Naira (NGN) |
Disclosure of risk management strategy related to hedge accounting [line items] |
Actual valuation fluctuation percentage | 7.80%
Top of Range | Kenyan Shilling (KES), Ghanaian Cedi (GHS), Ugandan Shilling (UGX) and United Arab Emirates Dirham (AED) |
Disclosure of risk management strategy related to hedge accounting [line items] |
Actual valuation fluctuation percentage | 13.00%

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