XML 100 R28.htm IDEA: XBRL DOCUMENT
v3.20.4

The Millicom Group - A.1. Subsidiaries (Details) | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Telemovil El Salvador S.A. de C.V. |  |  |
Disclosure of subsidiaries [line items] |  |  |
Proportion of ownership interest in subsidiary | 100.00% | 100.00% | 100.00%
Millicom Cable Costa Rica S.A. |  |  |
Disclosure of subsidiaries [line items] |  |  |
Proportion of ownership interest in subsidiary | 100.00% | 100.00% | 100.00%
Telefonica Celular de Bolivia S.A. |  |  |
Disclosure of subsidiaries [line items] |  |  |
Proportion of ownership interest in subsidiary | 100.00% | 100.00% | 100.00%
Telefonica Celular del Paraguay S.A. |  |  |
Disclosure of subsidiaries [line items] |  |  |
Proportion of ownership interest in subsidiary | 100.00% | 100.00% | 100.00%
Cable Onda S.A |  |  |
Disclosure of subsidiaries [line items] |  |  |
Proportion of ownership interest in subsidiary | 80.00% | 80.00% | 80.00%
Telefonica Moviles Panama |  |  |
Disclosure of subsidiaries [line items] |  |  |
Proportion of ownership interest in subsidiary | 80.00% | 80.00% | 0.00%
Telefonia Cellular de Nicaragua sa |  |  |
Disclosure of subsidiaries [line items] |  |  |
Proportion of ownership interest in subsidiary | 100.00% | 100.00% | 0.00%
Colombia Movil S.A. E.S.P. |  |  |
Disclosure of subsidiaries [line items] |  |  |
Proportion of ownership interest in subsidiary | 50.00% | 50.00% | 50.00%
UNE EPM Telecommunicaciones SA |  |  |
Disclosure of subsidiaries [line items] |  |  |
Proportion of ownership interest in subsidiary | 50.00% | 50.00% | 50.00%
Edatel S.A. E.S.P. |  |  |
Disclosure of subsidiaries [line items] |  |  |
Proportion of ownership interest in subsidiary | 50.00% | 50.00% | 50.00%
Sentel GSM S.A. |  |  |
Disclosure of subsidiaries [line items] |  |  |
Proportion of ownership interest in subsidiary | 0.00% | 0.00% | 0.00%
MIC Tanzania Public Limited Company |  |  |
Disclosure of subsidiaries [line items] |  |  |
Proportion of ownership interest in subsidiary | 98.50% | 98.50% | 100.00%
Millicom Tchad S.A. |  |  |
Disclosure of subsidiaries [line items] |  |  |
Proportion of ownership interest in subsidiary | 0.00% | 0.00% | 100.00%
Millicom Rwanda Limited |  |  |
Disclosure of subsidiaries [line items] |  |  |
Proportion of ownership interest in subsidiary | 0.00% | 0.00% | 0.00%
Zanzibar Telecom Limited |  |  |
Disclosure of subsidiaries [line items] |  |  |
Proportion of ownership interest in subsidiary | 98.50% | 98.50% | 85.00%
Millicom International Operations S.A. |  |  |
Disclosure of subsidiaries [line items] |  |  |
Proportion of ownership interest in subsidiary | 100.00% | 100.00% | 100.00%
Millicom International Operations B.V. |  |  |
Disclosure of subsidiaries [line items] |  |  |
Proportion of ownership interest in subsidiary | 100.00% | 100.00% | 100.00%
Millicom LIH S.A. |  |  |
Disclosure of subsidiaries [line items] |  |  |
Proportion of ownership interest in subsidiary | 100.00% | 100.00% | 100.00%
MIC Latin America B.V. |  |  |
Disclosure of subsidiaries [line items] |  |  |
Proportion of ownership interest in subsidiary | 100.00% | 100.00% | 100.00%
Millicom Africa B.V. |  |  |
Disclosure of subsidiaries [line items] |  |  |
Proportion of ownership interest in subsidiary | 100.00% | 100.00% | 100.00%
Millicom Holding B.V. |  |  |
Disclosure of subsidiaries [line items] |  |  |
Proportion of ownership interest in subsidiary | 100.00% | 100.00% | 100.00%
Millicom International Services LLC |  |  |
Disclosure of subsidiaries [line items] |  |  |
Proportion of ownership interest in subsidiary | 100.00% | 100.00% | 100.00%
Millicom Services UK Ltd |  |  |
Disclosure of subsidiaries [line items] |  |  |
Proportion of ownership interest in subsidiary | 100.00% | 100.00% | 100.00%
Millicom Spain S.L. |  |  |
Disclosure of subsidiaries [line items] |  |  |
Proportion of ownership interest in subsidiary | 100.00% | 100.00% | 100.00%

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 proportion of ownership interest in a subsidiary attributable to the entity. [Refer: Subsidiaries [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 27 -IssueDate 2019-01-01 -Paragraph 17 -Subparagraph b -Clause iii -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=27&code=ifrs-tx-2019-en-r&anchor=para_17_b_iii&doctype=Standard -URIDate 2019-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 27 -IssueDate 2019-01-01 -Paragraph 16 -Subparagraph b -Clause iii -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=27&code=ifrs-tx-2019-en-r&anchor=para_16_b_iii&doctype=Standard -URIDate 2019-03-27 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2019-01-01 -Paragraph 19B -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2019-en-r&anchor=para_19B_c&doctype=Standard -URIDate 2019-03-27 + Details
Name: | ifrs-full_ProportionOfOwnershipInterestInSubsidiary
Namespace Prefix: | ifrs-full_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tigo_TelemovilElSalvadorS.A.deC.V.Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tigo_CableCostaRicaS.A.Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tigo_TelefonicaCelulardeBoliviaS.A.Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tigo_TelefonicaCelulardelParaguayS.A.Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

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

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

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tigo_ColombiaMovilS.A.E.S.P.Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tigo_EdatelS.A.E.S.P.Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tigo_SentelGSMS.A.Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tigo_MillicomTchadS.A.Member
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: |

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

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tigo_MillicomInternationalOperationsS.A.Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tigo_MillicomInternationalOperationsB.V.Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tigo_MillicomLIHS.A.Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tigo_MICLatinAmericaB.V.Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tigo_MillicomAfricaB.V.Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tigo_MillicomHoldingB.V.Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

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

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tigo_MillicomSpainS.L.Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |