The amount of capital commitments for which the entity has entered into a contract. [Refer: Capital commitments]

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2018-01-01
-Paragraph 112
-Subparagraph c
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2018-03-01&anchor=para_112_c&doctype=Standard
-URIDate 2018-03-16

+ Details

Name:	ifrs-full_ContractualCapitalCommitments
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The amount of contractual commitments for the acquisition of property, plant and equipment. [Refer: Property, plant and equipment]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 16
-IssueDate 2018-01-01
-Paragraph 74
-Subparagraph c
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=16&date=2018-03-01&anchor=para_74_c&doctype=Standard
-URIDate 2018-03-16

+ Details

Name:	ifrs-full_ContractualCommitmentsForAcquisitionOfPropertyPlantAndEquipment
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table.

+ References

No definition available.

+ Details

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

- Definition

Period of time to complete work required by contract.

+ References

No definition available.

+ Details

Name:	teo_ContractTerm
Namespace Prefix:	teo_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the guaranteed performance speed of mobile internet services in megabytes per second (Mbps) on all network locations where mobile internet services are offered.

+ References

No definition available.

+ Details

Name:	teo_MobileInternetServicesGuaranteedPerformanceRate
Namespace Prefix:	teo_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	duration

- Definition

The number of inhabitants in the locality who will receive SRMC, STM and PCS.

+ References

No definition available.

+ Details

Name:	teo_NumberOfInhabitants
Namespace Prefix:	teo_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	instant

- Definition

The amount of purchase commitments relating to contracts that qualify as leases under IFRS 16.

+ References

No definition available.

+ Details

Name:	teo_PurchaseCommitmentsRelatingToContractsThatQualifyAsLeasesUnderIfrs16
Namespace Prefix:	teo_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

Name:	ifrs-full_SignificantInvestmentsInSubsidiariesAxis=teo_PersonalMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_RangeAxis=ifrs-full_BottomOfRangeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_RangeAxis=ifrs-full_TopOfRangeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

COMMITMENTS (Details) $ in Millions, $ in Millions	12 Months Ended
COMMITMENTS (Details) $ in Millions, $ in Millions	Dec. 31, 2018 USD ($) MB / s item	Dec. 31, 2018 ARS ($) item	Jul. 07, 2014 USD ($)
Commitments
Purchase orders		$ 41,107
PP&E commitments	$ 9,926
Purchase commitments relating to contracts that qualify as leases under IFRS 16		$ 3,600
Personal
Commitments
PP&E commitments			$ 450
Personal \| Minimum
Commitments
Number of inhabitants \| item	500	500
Guaranteed performance speed \| MB / s	1
Personal \| Maximum
Commitments
Contract term	60 months