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v3.26.1

Introduction - Change in accounting estimate (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Disclosure of detailed information about property, plant and equipment [line items] |  |  |  |
Depreciation | $ (961) | $ (916) | $ (978) |
Change in useful life |  |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |  |
Depreciation |  | $ 48 | $ 27 |
Fiber optic network |  |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |  |
Estimated useful lives |  | 25 years | 15 years |
Related equipment/software | Bottom of range |  |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |  |
Estimated useful lives |  | 5 years |  |
Related equipment/software | Top of range |  |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |  |
Estimated useful lives |  | 10 years |  |
Networks (including civil works) | Bottom of range |  |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |  |
Estimated useful lives | 5 years |  | 5 years |
Networks (including civil works) | Top of range |  |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |  |
Estimated useful lives | 25 years |  | 7 years |
Computer software |  |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |  |
Estimated useful lives |  |  | 5 years |
Towers, poles and ducts |  |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |  |
Estimated useful lives |  |  | 25 years | 15 years
Civil works of towers, poles and ducts |  |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |  |
Estimated useful lives |  |  | 15 years | 10 years

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- Definition The useful life, measured as period of time, used for property, plant and equipment. [Refer: Property, plant and equipment] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2025-01-01 -Paragraph 73 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=16&code=ifrs-tx-2025-en-r&anchor=para_73_c&doctype=Standard -URIDate 2025-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Note Effective 2027-01-01 -Name IFRS -Number 19 -IssueDate 2025-01-01 -Paragraph 200 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=19&code=ifrs-tx-2025-en-r&anchor=para_200_c&doctype=Standard -URIDate 2025-03-27 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Note Effective 2027-01-01 -Name IFRS -Number 19 -IssueDate 2025-01-01 -Paragraph 200 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=19&code=ifrs-tx-2025-en-r&anchor=para_200_c&doctype=Standard -URIDate 2025-03-27 + Details
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