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TRADE RECEIVABLES - Movements in the allowance for current doubtful accounts (Details) - ARS ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
TRADE RECEIVABLES
At the beginning of the fiscal year	$ (76,485)	$ (104,352)
Acquisitions through business combinations	(132)
Increases	(85,217)	(97,236)
Uses	11,586	37,619
RECPAM and currency translation adjustments	55,521	87,484
At the end of the year	$ (94,727)	$ (76,485)

X

- Definition

The amount of additional allowance for credit losses of trade receivables recognised in profit or loss.

+ References

No definition available.

+ Details

Name:	teo_AdditionalAllowanceRecognisedInProfitOrLossAllowanceAccountForCreditLossesOfTradeReceivables
Namespace Prefix:	teo_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

The amount of an allowance account used to record impairments to trade receivables due to credit losses.

+ References

No definition available.

+ Details

Name:	teo_AllowanceAccountForCreditLossesOfTradeReceivables
Namespace Prefix:	teo_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

The amount of allowance for credit losses of trade receivables acquired through business combination.

+ References

No definition available.

+ Details

Name:	teo_AllowanceAccountForCreditLossesOfTradeReceivablesAcquisitionsThroughBusinessCombination
Namespace Prefix:	teo_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

The decrease in an allowance account for credit losses of trade receivables resulting from the utilization and currency translation adjustments.

+ References

No definition available.

+ Details

Name:	teo_RestatementAdjustmentsAndCurrencyTranslationAdjustmentsAllowanceAccountForCreditLossesOfTradeReceivables
Namespace Prefix:	teo_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	teo_TradeReceivablesAbstract
Namespace Prefix:	teo_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The decrease in an current allowance account for credit losses of trade receivables resulting from the utilisation of the allowance.

+ References

No definition available.

+ Details

Name:	teo_UtilisationAllowanceAccountForCreditLossesOfTradeReceivables
Namespace Prefix:	teo_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration