XML 279 R31.htm IDEA: XBRL DOCUMENT
v3.26.1

Introduction - Current macroeconomic environment (Details) | 12 Months Ended
--- | ---
Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023
Foreign Exchange Rate [Line Items] |  |  |
Inflation percentage rate | 20.40% | 10.00% | 2.10%
Colombia |  |  |
Foreign Exchange Rate [Line Items] |  |  |
Average foreign exchange rate | 4,053 | 4,083 | 4,313
Change in average foreign exchange rate | 0.007 |  |
Bolivia |  |  |
Foreign Exchange Rate [Line Items] |  |  |
Average foreign exchange rate | 12.83 | 6.91 | 6.91
Change in average foreign exchange rate | (0.4612) |  |

X
- Definition The average exchange rate used by the entity. Exchange rate is the ratio of exchange for two currencies. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Note Expiry date 2027-01-01 -Name IAS -Number 1 -IssueDate 2025-01-01 -Paragraph 112 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2025-en-b&anchor=para_112_c&doctype=Standard -URIDate 2025-03-27 + Details
Name: | ifrs-full_AverageForeignExchangeRate
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | duration

X
- Definition Change In Average Foreign Exchange Rate + References No definition available. + Details
Name: | tigo_ChangeInAverageForeignExchangeRate
Namespace Prefix: | tigo_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | duration

X
- Definition [Line Items] for Foreign Exchange Rate [Table] + References No definition available. + Details
Name: | tigo_ForeignExchangeRateLineItems
Namespace Prefix: | tigo_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Inflation Percentage Rate + References No definition available. + Details
Name: | tigo_InflationPercentageRate
Namespace Prefix: | tigo_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | srt_CurrencyAxis=currency_COP
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_CurrencyAxis=currency_BOB
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |