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The Millicom Group - A.3. Investments in associates (Details) - USD ($) $ in Millions	12 Months Ended
	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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The amount of investments in associates accounted for using the equity method. [Refer: Associates [member]; Investments accounted for using equity method]

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The proportion of ownership interest in an associate attributable to the entity. [Refer: Associates [member]]

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