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The Millicom Group - A.3. Investments in associates (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021
Disclosure of associates [line items] |  |  |
Investments in associates | $ 0 | $ 22 | [1]
West Indian Ocean Cable Company Limited (WIOCC) |  |  |
Disclosure of associates [line items] |  |  |
Proportion of ownership interest in associate | 0.00% | 9.10% |
Investments in associates | $ 0 | $ 14 |
MKC Brilliant Holding GmbH (LIH) |  |  |
Disclosure of associates [line items] |  |  |
Proportion of ownership interest in associate | 35.00% | 35.00% |
Milvik AB |  |  |
Disclosure of associates [line items] |  |  |
Proportion of ownership interest in associate | 0.00% | 9.00% |
Investments in associates | $ 0 | $ 8 |
[1] | Restated after the finalization of the Guatemala purchase accounting. See note A.1.2. for further details.

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- Definition The amount of investments in associates accounted for using the equity method. [Refer: Associates [member]; Investments accounted for using equity method] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2022-03-24 -Paragraph 55 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2022-en-r&anchor=para_55&doctype=Standard -URIDate 2022-03-24 + Details
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