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Performance B.3. Segmental Information - Revenue from contracts with customers (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |  |  |  |  |
Revenue | $ 5,624 | [1] | $ 4,261 | [2] | $ 3,805 | [2]
Mobile |  |  |  |  |  |
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |  |  |  |  |
Revenue | 2,957 |  | 2,000 |  | 1,759 |
Cable and other fixed services |  |  |  |  |  |
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |  |  |  |  |
Revenue | 2,145 |  | 1,938 |  | 1,794 |
Other |  |  |  |  |  |
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |  |  |  |  |
Revenue | 69 |  | 60 |  | 51 |
Service revenue |  |  |  |  |  |
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |  |  |  |  |
Revenue | 5,171 |  | 3,997 |  | 3,604 |
Telephone and equipment |  |  |  |  |  |
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |  |  |  |  |
Revenue | 454 |  | 263 |  | 201 |
Over time | Mobile |  |  |  |  |  |
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |  |  |  |  |
Revenue | 2,916 |  | 1,963 |  | 1,727 |
Over time | Cable and other fixed services |  |  |  |  |  |
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |  |  |  |  |
Revenue | 2,145 |  | 1,938 |  | 1,794 |
Over time | Other |  |  |  |  |  |
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |  |  |  |  |
Revenue | 69 |  | 60 |  | 51 |
Point in time | Mobile |  |  |  |  |  |
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |  |  |  |  |
Revenue | 40 |  | 37 |  | 32 |
Point in time | Telephone and equipment |  |  |  |  |  |
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |  |  |  |  |
Revenue | $ 454 |  | $ 263 |  | $ 201 |
[1] | Tigo Guatemala is fully consolidated since the acquisition of the remaining 45% shareholding on November 12, 2021. See note A.1.2. for further details. As a result, numbers might not be directly comparable with previous years' figures.
[2] | Re-presented for discontinued operations (see note A.4.)

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- Definition The amount of revenue from contracts with customers. A customer is a party that has contracted with an entity to obtain goods or services that are an output of the entity’s ordinary activities in exchange for consideration. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 15 -IssueDate 2022-03-24 -Paragraph 114 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=15&code=ifrs-tx-2022-en-r&anchor=para_114&doctype=Standard -URIDate 2022-03-24 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 15 -IssueDate 2022-03-24 -Paragraph 113 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=15&code=ifrs-tx-2022-en-r&anchor=para_113_a&doctype=Standard -URIDate 2022-03-24 + Details
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