XML 208 R30.htm IDEA: XBRL DOCUMENT
v3.10.0.1

The Millicom Group - A.1.3. Disposal of subsidiaries and decreases in non-controlling interests of subsidiaries (Details) - Discontinued Operations - Rwanda - USD ($) $ in Millions |  | 12 Months Ended
--- | --- | ---
Jan. 31, 2018 | Dec. 31, 2018
Disclosure of subsidiaries [line items] |  |
Gain (loss) on disposal of discontinued operations | $ (32) |
Millicom Rwanda Limited |  |
Disclosure of subsidiaries [line items] |  |
Gain (loss) on disposal of discontinued operations |  | $ (32)

X
- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table. + References No definition available. + Details
Name: | ifrs-full_DisclosureOfSignificantInvestmentsInSubsidiariesLineItems
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The gain (loss) recognised on the measurement to fair value less costs to sell or on the disposal of the assets or disposal group(s) constituting the discontinued operation. [Refer: Discontinued operations [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 5 -IssueDate 2018-01-01 -Paragraph 33 -Subparagraph b -Clause iii -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=5&date=2018-03-01&anchor=para_33_b_iii&doctype=Standard -URIDate 2018-03-16 + Details
Name: | ifrs-full_GainLossRecognisedOnMeasurementToFairValueLessCostsToSellOrOnDisposalOfAssetsOrDisposalGroupsConstitutingDiscontinuedOperation
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | ifrs-full_ContinuingAndDiscontinuedOperationsAxis=tigo_DiscontinuedOperationsRwandaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tigo_MillicomRwandaLimitedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |