INCOME TAX PAYABLE AND DEFERRED INCOME TAX ASSETS LIABILITIES - Maturities of estimated tax carryforward (Details) $ in Millions	Dec. 31, 2021 ARS ($)
DEFERRED INCOME TAX ASSETS/LIABILITIES
Tax carryforward amount	$ 716
Inter Radios \| Tax Year 2018
DEFERRED INCOME TAX ASSETS/LIABILITIES
Tax carryforward amount	1
Telemas S.A \| Tax Year 2019
DEFERRED INCOME TAX ASSETS/LIABILITIES
Tax carryforward amount	454
Micro Sistemas \| Tax Year 2021
DEFERRED INCOME TAX ASSETS/LIABILITIES
Tax carryforward amount	230
Telecom Argentinas \| Tax Year 2021
DEFERRED INCOME TAX ASSETS/LIABILITIES
Tax carryforward amount	6
Telecom Argentinas \| Tax Year 2021
DEFERRED INCOME TAX ASSETS/LIABILITIES
Tax carryforward amount	20
Telecom Argentinas \| Tax Year 2021
DEFERRED INCOME TAX ASSETS/LIABILITIES
Tax carryforward amount	$ 5

The amount of unused tax credits for which no deferred tax asset is recognised in the statement of financial position. [Refer: Unused tax credits [member]]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 12
-IssueDate 2021-01-01
-Paragraph 81
-Subparagraph e
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=12&code=ifrs-tx-2021-en-r&anchor=para_81_e&doctype=Standard
-URIDate 2021-03-24

Name:	ifrs-full_UnusedTaxCreditsForWhichNoDeferredTaxAssetRecognised
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	instant