XML 300 R52.htm IDEA: XBRL DOCUMENT
v3.26.1

Performance B.4.1. Share-based compensation - Plan awards and shares expected to vest (Details) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2025 USD ($) shares | Dec. 31, 2024 shares | Dec. 31, 2023 shares | Dec. 31, 2022 shares
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |
Shares issued (in shares) | (434,675) | (270,850) |  |
Shares still expected to vest (in shares) | 502,914 | 474,225 |  |
2025 Deferred Plan |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |
Initial shares granted (in shares) | 222,817 |  |  |
Number of shares for rights offering, in share-based payment arrangement (in shares) | 0 |  |  |
Revision for forfeitures (in shares) | 0 |  |  |
Shares cancelled in 2024 (in shares) | 0 |  |  |
Total before issuances (in shares) | 222,817 |  |  |
Shares issued (in shares) | (70,252) |  |  |
Performance conditions not met (in shares) | 0 |  |  |
Shares still expected to vest (in shares) | 152,565 |  |  |
Estimated cost over the vesting period | $ | $ 7 |  |  |
2024 Performance Plan |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |
Initial shares granted (in shares) | 695,936 |  |  |
Number of shares for rights offering, in share-based payment arrangement (in shares) | 0 |  |  |
Revision for forfeitures (in shares) | (43,852) |  |  |
Shares cancelled in 2024 (in shares) | (438,396) |  |  |
Total before issuances (in shares) | 213,688 |  |  |
Shares issued (in shares) | (43,612) |  |  |
Performance conditions not met (in shares) | 0 |  |  |
Shares still expected to vest (in shares) | 170,076 |  |  |
Estimated cost over the vesting period | $ | $ 7 |  |  |
2024 Performance Plan | Share Appreciation Rights Units (SARs) |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |
Shares still expected to vest (in shares) | 123,103 |  |  |
2024 Deferred Plan |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |
Initial shares granted (in shares) | 1,139,838 |  |  |
Number of shares for rights offering, in share-based payment arrangement (in shares) | 0 |  |  |
Revision for forfeitures (in shares) | (55,244) |  |  |
Shares cancelled in 2024 (in shares) | (229,963) |  |  |
Total before issuances (in shares) | 854,631 |  |  |
Shares issued (in shares) | (349,551) | (135,092) |  |
Performance conditions not met (in shares) | 0 |  |  |
Shares still expected to vest (in shares) | 369,988 |  |  |
Estimated cost over the vesting period | $ | $ 22 |  |  |
2023 Performance Plan |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |
Initial shares granted (in shares) | 818,842 |  |  |
Number of shares for rights offering, in share-based payment arrangement (in shares) | 0 |  |  |
Revision for forfeitures (in shares) | (233,983) |  |  |
Shares cancelled in 2024 (in shares) | (308,172) |  |  |
Total before issuances (in shares) | 276,687 |  |  |
Shares issued (in shares) | (105,193) | (66,519) | (31,124) |
Performance conditions not met (in shares) | 75,248 |  |  |
Shares still expected to vest (in shares) | 149,099 |  |  |
Estimated cost over the vesting period | $ | $ 17 |  |  |
2023 Deferred Plan |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |
Initial shares granted (in shares) | 2,375,143 |  |  |
Number of shares for rights offering, in share-based payment arrangement (in shares) | 0 |  |  |
Revision for forfeitures (in shares) | (156,243) |  |  |
Shares cancelled in 2024 (in shares) | (244,537) |  |  |
Total before issuances (in shares) | 1,974,363 |  |  |
Shares issued (in shares) | (445,526) | (824,237) | (354,331) |
Performance conditions not met (in shares) | 0 |  |  |
Shares still expected to vest (in shares) | 350,269 |  |  |
Estimated cost over the vesting period | $ | $ 43 |  |  |
2022 Performance Plan |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |
Initial shares granted (in shares) | 306,641 |  |  |
Number of shares for rights offering, in share-based payment arrangement (in shares) | 83,926 |  |  |
Revision for forfeitures (in shares) | (72,290) |  |  |
Shares cancelled in 2024 (in shares) | (144,108) |  |  |
Total before issuances (in shares) | 174,169 |  |  |
Shares issued (in shares) | (136,547) | (49,245) | (29,885) |
Performance conditions not met (in shares) | 41,508 |  |  |
Shares still expected to vest (in shares) | 0 |  |  |
Estimated cost over the vesting period | $ | $ 0 |  |  |
2022 Deferred Plan |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |
Initial shares granted (in shares) | 913,450 |  |  |
Number of shares for rights offering, in share-based payment arrangement (in shares) | 227,947 |  |  |
Revision for forfeitures (in shares) | (84,684) |  |  |
Shares cancelled in 2024 (in shares) | (33,305) |  |  |
Total before issuances (in shares) | 1,023,408 |  |  |
Shares issued (in shares) | (220,470) | (312,725) | (476,256) | (13,957)
Performance conditions not met (in shares) | 0 |  |  |
Shares still expected to vest (in shares) | 0 |  |  |
Estimated cost over the vesting period | $ | $ 0 |  |  |

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

X
- Definition The number of other equity instruments (ie other than share options) exercised or vested in a share-based payment arrangement. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IFRS -Number 2 -IssueDate 2025-01-01 -Paragraph 45 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2025-en-r&anchor=para_45&doctype=Standard -URIDate 2025-03-27 + Details
Name: | ifrs-full_NumberOfOtherEquityInstrumentsExercisedOrVestedInSharebasedPaymentArrangement
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | duration

X
- Definition The number of other equity instruments (ie other than share options) expired in a share-based payment arrangement. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IFRS -Number 2 -IssueDate 2025-01-01 -Paragraph 45 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2025-en-r&anchor=para_45&doctype=Standard -URIDate 2025-03-27 + Details
Name: | ifrs-full_NumberOfOtherEquityInstrumentsExpiredInSharebasedPaymentArrangement
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | duration

X
- Definition The number of other equity instruments (ie other than share options) forfeited in a share-based payment arrangement. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IFRS -Number 2 -IssueDate 2025-01-01 -Paragraph 45 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2025-en-r&anchor=para_45&doctype=Standard -URIDate 2025-03-27 + Details
Name: | ifrs-full_NumberOfOtherEquityInstrumentsForfeitedInSharebasedPaymentArrangement
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | duration

X
- Definition The number of other equity instruments (ie other than share options) outstanding in a share-based payment arrangement. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IFRS -Number 2 -IssueDate 2025-01-01 -Paragraph 45 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2025-en-r&anchor=para_45&doctype=Standard -URIDate 2025-03-27 + Details
Name: | ifrs-full_NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | instant

X
- Definition Estimated Cost Over The Vesting Period For Share-Based Payment Arrangment + References No definition available. + Details
Name: | tigo_EstimatedCostOverTheVestingPeriodForShareBasedPaymentArrangment
Namespace Prefix: | tigo_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Increase (Decrease) Number Of Other Equity Instruments Before Exercised Or Vested In Share-Based Payment Arangement + References No definition available. + Details
Name: | tigo_IncreaseDecreaseNumberOfOtherEquityInstrumentsBeforeExercisedOrVestedInShareBasedPaymentArangement
Namespace Prefix: | tigo_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number Of Other Equity Instruments Forfeited Due To Performance Conditions In Share-based Payment Arrangements + References No definition available. + Details
Name: | tigo_NumberOfOtherEquityInstrumentsForfeitedDueToPerformanceConditionsInSharebasedPaymentArrangements
Namespace Prefix: | tigo_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number Of Other Equity Instruments Initially Granted In Share-Based Payment Arrangement + References No definition available. + Details
Name: | tigo_NumberOfOtherEquityInstrumentsInitiallyGrantedInShareBasedPaymentArrangement
Namespace Prefix: | tigo_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number Of Shares For Rights Offering, In Share-Based Payment Arrangement + References No definition available. + Details
Name: | tigo_NumberOfSharesForRightsOfferingInShareBasedPaymentArrangement
Namespace Prefix: | tigo_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=tigo_IncentivePlan2025DeferredPlanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=tigo_IncentivePlan2024PerformancePlanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | tigo_TypeOfAwardAxis=tigo_ShareAppreciationRightsUnitsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=tigo_IncentivePlan2024DeferredPlanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=tigo_IncentivePlan2023PerformancePlanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=tigo_IncentivePlan2023DeferredPlanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=tigo_IncentivePlan2022PerformancePlanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=tigo_IncentivePlan2022DeferredPlanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |