XML 557 R79.htm IDEA: XBRL DOCUMENT v3.22.0.1

Long-term assets - E.1.6. Impairment testing of goodwill (Details)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Disclosure of information for cash-generating units [line items]
Goodwill impairment testing, period of planning horizon	15 years
Bolivia
Disclosure of information for cash-generating units [line items]
Average EBITDA margin	42.70%	39.20%
Average CAPEX intensity	16.60%	16.80%
Perpetual growth rate	1.00%	1.00%
WACC rate after tax	11.60%	11.50%
Colombia
Disclosure of information for cash-generating units [line items]
Average EBITDA margin	36.10%	35.70%
Average CAPEX intensity	17.40%	17.70%
Perpetual growth rate	2.00%	2.00%
WACC rate after tax	8.90%	8.30%
Costa Rica
Disclosure of information for cash-generating units [line items]
Average EBITDA margin	35.50%	32.90%
Average CAPEX intensity	15.10%	17.80%
Perpetual growth rate	2.00%	2.00%
WACC rate after tax	11.10%	12.10%
El Salvador
Disclosure of information for cash-generating units [line items]
Average EBITDA margin	39.30%	35.40%
Average CAPEX intensity	12.90%	14.00%
Perpetual growth rate	1.00%	1.00%
WACC rate after tax	14.70%	13.80%
Nicaragua
Disclosure of information for cash-generating units [line items]
Average EBITDA margin	45.90%	45.60%
Average CAPEX intensity	16.00%	15.90%
Perpetual growth rate	3.00%	3.00%
WACC rate after tax	12.50%	13.80%
Panama
Disclosure of information for cash-generating units [line items]
Average EBITDA margin	47.00%	48.20%
Average CAPEX intensity	17.20%	17.50%
Perpetual growth rate	1.00%	1.00%
WACC rate after tax	7.00%	7.60%
Paraguay
Disclosure of information for cash-generating units [line items]
Average EBITDA margin	42.60%	44.30%
Average CAPEX intensity	15.40%	15.60%
Perpetual growth rate	1.00%	1.00%
WACC rate after tax	8.30%	8.40%
Guatemala
Disclosure of information for cash-generating units [line items]
Average EBITDA margin	54.70%	53.20%
Average CAPEX intensity	12.30%	12.40%
Perpetual growth rate	1.00%	1.00%
WACC rate after tax	8.40%	8.60%
Tanzania (Zantel)
Disclosure of information for cash-generating units [line items]
Average EBITDA margin	38.00%	39.50%
Average CAPEX intensity	12.50%	11.70%
Perpetual growth rate	1.00%	1.00%
WACC rate after tax	13.20%	13.80%
Perpetual growth rate, measurement input | Goodwill Impairment Risk
Disclosure of information for cash-generating units [line items]
Reasonably possible change in risk variable, percent	1.00%
Weighted average cost of capital and perpetual growth rate, measurement input | Goodwill Impairment Risk
Disclosure of information for cash-generating units [line items]
Reasonably possible change in risk variable, percent	1.00%
Weighted average cost of capital, measurement input | Goodwill Impairment Risk
Disclosure of information for cash-generating units [line items]
Reasonably possible change in risk variable, percent	1.00%
EBITDA Margin, Measurement Input | Goodwill Impairment Risk
Disclosure of information for cash-generating units [line items]
Reasonably possible change in risk variable, percent	2.00%

X

- Definition

The growth rate used to extrapolate cash flow projections beyond the period covered by the most recent budgets/forecasts for a cash-generating unit (group of units). [Refer: Cash-generating units [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 36
-IssueDate 2021-01-01
-Paragraph 134
-Subparagraph d
-Clause iv
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=36&code=ifrs-tx-2021-en-r&anchor=para_134_d_iv&doctype=Standard
-URIDate 2021-03-24

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 36
-IssueDate 2021-01-01
-Paragraph 134
-Subparagraph e
-Clause iv
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=36&code=ifrs-tx-2021-en-r&anchor=para_134_e_iv&doctype=Standard
-URIDate 2021-03-24

+ Details

Name:	ifrs-full_DescriptionOfGrowthRateUsedToExtrapolateCashFlowProjections
Namespace Prefix:	ifrs-full_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

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_DisclosureOfInformationForIndividualAssetOrCashgeneratingUnitWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesLineItems
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Goodwill, Impairment Testing, Period Of Planning Horizon

+ References

No definition available.

+ Details

Name:	tigo_GoodwillImpairmentTestingPeriodOfPlanningHorizon
Namespace Prefix:	tigo_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Sensitivity Analysis For Types Of Market Risk, Reasonably Possible Change In Risk Variable, Percent

+ References

No definition available.

+ Details

Name:	tigo_SensitivityAnalysisForTypesOfMarketRiskReasonablyPossibleChangeInRiskVariablePercent
Namespace Prefix:	tigo_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Significant Estimates, Average CAPEX Percentage

+ References

No definition available.

+ Details

Name:	tigo_SignificantEstimatesAverageCAPEXPercentage
Namespace Prefix:	tigo_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Significant Estimates, Average EBITDA Margin Percentage

+ References

No definition available.

+ Details

Name:	tigo_SignificantEstimatesAverageEBITDAMarginPercentage
Namespace Prefix:	tigo_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Significant Estimates, WACC Rate After Tax Percentage

+ References

No definition available.

+ Details

Name:	tigo_SignificantEstimatesWACCRateAfterTaxPercentage
Namespace Prefix:	tigo_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Details

Name:	ifrs-full_IndividualAssetsOrCashgeneratingUnitsWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesAxis=tigo_BoliviaCashGeneratingUnitMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_IndividualAssetsOrCashgeneratingUnitsWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesAxis=tigo_ColombiaCashGeneratingUnitMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_IndividualAssetsOrCashgeneratingUnitsWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesAxis=tigo_CostaRicaCashGeneratingUnitMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_IndividualAssetsOrCashgeneratingUnitsWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesAxis=tigo_ElSalvadorCashGeneratingUnitMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_IndividualAssetsOrCashgeneratingUnitsWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesAxis=tigo_NicaraguaCashGeneratingUnitMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_IndividualAssetsOrCashgeneratingUnitsWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesAxis=tigo_PanamaCashGeneratingUnitMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_IndividualAssetsOrCashgeneratingUnitsWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesAxis=tigo_ParaguayCashGeneratingUnitMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_IndividualAssetsOrCashgeneratingUnitsWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesAxis=tigo_GuatemalaCashGeneratingUnitMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_IndividualAssetsOrCashgeneratingUnitsWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesAxis=tigo_TanzaniaCashGeneratingUnitMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_UnobservableInputsAxis=tigo_PerpetualGrowthRateMeasurementInputMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_TypesOfRisksAxis=tigo_GoodwillImpairmentRiskMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_UnobservableInputsAxis=tigo_WeightedAverageCostOfCapitalAndPerpetualGrowthRateMeasurementInputMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_UnobservableInputsAxis=ifrs-full_WeightedAverageCostOfCapitalMeasurementInputMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_UnobservableInputsAxis=tigo_EBITDAMarginMeasurementInputMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: