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TRADE RECEIVABLES - Movements in the allowance for current doubtful accounts (Details) - ARS ($) $ in Millions | 12 Months Ended
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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)

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- 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

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- 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

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- 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

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- 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

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- References No definition available. + Details
Name: | teo_TradeReceivablesAbstract
Namespace Prefix: | teo_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- 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