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Provisions - Possible Contingencies (Details) - Civil and commercial proceedings, contingencies - Personal $ in Millions		1 Months Ended		2 Months Ended	15 Months Ended
	Feb. 24, 2017	Jun. 30, 2012	Nov. 30, 2011 action	Feb. 28, 2017 company	Dec. 31, 2017 ARS ($)
Consumidores Financieros Asociacion Civil para su Defensa
Provisions
Number of years to be considered for reimbursement of excess amount collected			10 years
Number of years to be considered for crediting the customers for unused minutes on expired prepaid cards			10 years
Total number of legal actions within the federal civil and commercial court | action			3
Changes in service prices
Provisions
Period considered for reimbursement of increased price billed to customer		2 months
Claim by content providers
Provisions
Number of companies that initiated a claim | company				4
Maximum percentage of services invoiced that the mobile operators are entitled to receive	40.00%
Period to file interconnection contracts under the ENACOM	30 days
Radioelectric Spectrum Fees
Provisions
Difference resulting from both sets of liquidation excluding interests | $					$ 403

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The losses on settlements of litigation.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
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-IssueDate 2017-01-01
-Paragraph 98
-Subparagraph f
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Represents the maximum percentage of services invoiced, that the mobile operators are entitled to receive on behalf and to the order of providers of audiotext and mass calling Value Added Services.

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Represents the total number of legal actions that will continue within the Federal Civil and Commercial Court.

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Represents the period preceding the date of lawsuit, to be considered for reimbursement of excess amount collected from customers, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Represents the period considered for the reimbursement of increased price billed to customer, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Represents the period to file interconnection contracts under the ENACOM, or the addenda to the existing ones, that ensure adjustments to the contracts already in force and with relation to the services rendered by the members of CAVAM, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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