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Long-term assets - E.4.2. Millicom’s assets held for sale (Details) - USD ($) $ in Millions | Dec. 31, 2025 | Dec. 31, 2024
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Net Assets Classified as Held For Sale or as Held For Distribution to Owners [Line Items] |  |
Assets held for sale | $ 1 | $ 627
Liabilities directly associated with assets held for sale | $ 0 | 709
Net assets held for sale / book value |  | (83)
Towers sale in Colombia related to the third batch | Disposal groups classified as held for sale |  |
Net Assets Classified as Held For Sale or as Held For Distribution to Owners [Line Items] |  |
Non-current assets or disposal groups classified as held for sale |  | 1
Assets held for sale |  | 1
Liabilities directly associated with assets held for sale |  | 1
Mobile network sharing agreement in Colombia | Disposal groups classified as held for sale |  |
Net Assets Classified as Held For Sale or as Held For Distribution to Owners [Line Items] |  |
Assets held for sale |  | 613
Liabilities directly associated with assets held for sale |  | 698
Towers sale (including certain lease transfers) in Nicaragua | Disposal groups classified as held for sale |  |
Net Assets Classified as Held For Sale or as Held For Distribution to Owners [Line Items] |  |
Assets held for sale |  | 13
Liabilities directly associated with assets held for sale |  | $ 10

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- Definition The amount of liabilities included in disposal groups classified as held for sale. [Refer: Liabilities; Disposal groups classified as held for sale [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 5 -IssueDate 2025-01-01 -Paragraph 38 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=5&code=ifrs-tx-2025-en-r&anchor=para_38&doctype=Standard -URIDate 2025-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Note Expiry date 2027-01-01 -Name IAS -Number 1 -IssueDate 2025-01-01 -Paragraph 54 -Subparagraph p -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2025-en-b&anchor=para_54_p&doctype=Standard -URIDate 2025-03-27 + Details
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- Definition The amount of non-current assets or disposal groups classified as held for sale. [Refer: Disposal groups classified as held for sale [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 5 -IssueDate 2025-01-01 -Paragraph 38 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=5&code=ifrs-tx-2025-en-r&anchor=para_38&doctype=Standard -URIDate 2025-03-27 + Details
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- Definition The amount of non-current assets or disposal groups classified as held for sale or as held for distribution to owners. [Refer: Non-current assets or disposal groups classified as held for distribution to owners; Non-current assets or disposal groups classified as held for sale] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Note Expiry date 2027-01-01 -Name IAS -Number 1 -IssueDate 2025-01-01 -Paragraph 54 -Subparagraph j -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2025-en-b&anchor=para_54_j&doctype=Standard -URIDate 2025-03-27 + Details
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- Definition Net Assets Classified as Held For Sale or as Held For Distribution to Owners + References No definition available. + Details
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- Definition Net Assets (Liabilities) Classified As Held For Sale Or As Held For Distribution To Owners + References No definition available. + Details
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