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DESCRIPTION OF BUSINESS AND BASIS OF PREPARATION OF THE CONSOLIDATED FINANCIAL STATEMENTS - Subsidiaries (Details) $ in Millions, $ in Millions			12 Months Ended	26 Months Ended
	Jan. 22, 2026	May 19, 2025	Dec. 31, 2025 ARS ($)	May 19, 2025	Feb. 24, 2025 USD ($)	Feb. 24, 2025 ARS ($)
Micro Sistemas \| Banco Macro S.A. \| Disposal of major subsidiary
DESCRIPTION OF BUSINESS AND BASIS OF PREPARATION OF THE CONSOLIDATED FINANCIAL STATEMENTS
Ownership interest in joint venture (in percentage)	50.00%
ICT Services in Argentina - TMA Network
DESCRIPTION OF BUSINESS AND BASIS OF PREPARATION OF THE CONSOLIDATED FINANCIAL STATEMENTS
Percentage of interest on stake					99.99963%	99.99963%
Goodwill						$ 10,217
Total consideration			$ 1,660,045		$ 1,245
ICT Services in Argentina - TMA Network
DESCRIPTION OF BUSINESS AND BASIS OF PREPARATION OF THE CONSOLIDATED FINANCIAL STATEMENTS
Percentage of direct/indirect interest in capital stock and votes of entities included in consolidation			99.99963%
Micro Sistemas
DESCRIPTION OF BUSINESS AND BASIS OF PREPARATION OF THE CONSOLIDATED FINANCIAL STATEMENTS
Percentage of direct/indirect interest in capital stock and votes of entities included in consolidation			100.00%
Manda
DESCRIPTION OF BUSINESS AND BASIS OF PREPARATION OF THE CONSOLIDATED FINANCIAL STATEMENTS
Percentage of direct/indirect interest in capital stock and votes of entities included in consolidation			100.00%
RISSAU
DESCRIPTION OF BUSINESS AND BASIS OF PREPARATION OF THE CONSOLIDATED FINANCIAL STATEMENTS
Percentage of direct/indirect interest in capital stock and votes of entities included in consolidation			100.00%
InterRadios
DESCRIPTION OF BUSINESS AND BASIS OF PREPARATION OF THE CONSOLIDATED FINANCIAL STATEMENTS
Percentage of direct/indirect interest in capital stock and votes of entities included in consolidation			100.00%
PEM
DESCRIPTION OF BUSINESS AND BASIS OF PREPARATION OF THE CONSOLIDATED FINANCIAL STATEMENTS
Percentage of direct/indirect interest in capital stock and votes of entities included in consolidation			100.00%
Cable Imagen
DESCRIPTION OF BUSINESS AND BASIS OF PREPARATION OF THE CONSOLIDATED FINANCIAL STATEMENTS
Percentage of direct/indirect interest in capital stock and votes of entities included in consolidation			100.00%
Personal smarthome
DESCRIPTION OF BUSINESS AND BASIS OF PREPARATION OF THE CONSOLIDATED FINANCIAL STATEMENTS
Percentage of direct/indirect interest in capital stock and votes of entities included in consolidation			100.00%
NYS2
DESCRIPTION OF BUSINESS AND BASIS OF PREPARATION OF THE CONSOLIDATED FINANCIAL STATEMENTS
Percentage of direct/indirect interest in capital stock and votes of entities included in consolidation			100.00%
TSMA
DESCRIPTION OF BUSINESS AND BASIS OF PREPARATION OF THE CONSOLIDATED FINANCIAL STATEMENTS
Percentage of direct/indirect interest in capital stock and votes of entities included in consolidation			100.00%
Telefnica Ingeniera de Seguridad de Argentina S.A.U.
DESCRIPTION OF BUSINESS AND BASIS OF PREPARATION OF THE CONSOLIDATED FINANCIAL STATEMENTS
Percentage of direct/indirect interest in capital stock and votes of entities included in consolidation			99.99963%
Ubiquo
DESCRIPTION OF BUSINESS AND BASIS OF PREPARATION OF THE CONSOLIDATED FINANCIAL STATEMENTS
Percentage of direct/indirect interest in capital stock and votes of entities included in consolidation			95.00%
Nucleo
DESCRIPTION OF BUSINESS AND BASIS OF PREPARATION OF THE CONSOLIDATED FINANCIAL STATEMENTS
Percentage of direct/indirect interest in capital stock and votes of entities included in consolidation			67.50%
Personal Envios
DESCRIPTION OF BUSINESS AND BASIS OF PREPARATION OF THE CONSOLIDATED FINANCIAL STATEMENTS
Percentage of direct/indirect interest in capital stock and votes of entities included in consolidation			67.50%
CrediPay
DESCRIPTION OF BUSINESS AND BASIS OF PREPARATION OF THE CONSOLIDATED FINANCIAL STATEMENTS
Percentage of direct/indirect interest in capital stock and votes of entities included in consolidation			67.50%
Adesol
DESCRIPTION OF BUSINESS AND BASIS OF PREPARATION OF THE CONSOLIDATED FINANCIAL STATEMENTS
Percentage of direct/indirect interest in capital stock and votes of entities included in consolidation			100.00%
Opalker S.A.
DESCRIPTION OF BUSINESS AND BASIS OF PREPARATION OF THE CONSOLIDATED FINANCIAL STATEMENTS
Percentage of direct/indirect interest in capital stock and votes of entities included in consolidation			100.00%
Openxpand
DESCRIPTION OF BUSINESS AND BASIS OF PREPARATION OF THE CONSOLIDATED FINANCIAL STATEMENTS
Percentage of direct/indirect interest in capital stock and votes of entities included in consolidation			51.00%	100.00%
Percentage of interest transferred		49.00%
MFH
DESCRIPTION OF BUSINESS AND BASIS OF PREPARATION OF THE CONSOLIDATED FINANCIAL STATEMENTS
Percentage of direct/indirect interest in capital stock and votes of entities included in consolidation			100.00%
Naperville Investments LLC
DESCRIPTION OF BUSINESS AND BASIS OF PREPARATION OF THE CONSOLIDATED FINANCIAL STATEMENTS
Percentage of direct/indirect interest in capital stock and votes of entities included in consolidation			100.00%
Saturn
DESCRIPTION OF BUSINESS AND BASIS OF PREPARATION OF THE CONSOLIDATED FINANCIAL STATEMENTS
Percentage of direct/indirect interest in capital stock and votes of entities included in consolidation			100.00%
Telecom USA
DESCRIPTION OF BUSINESS AND BASIS OF PREPARATION OF THE CONSOLIDATED FINANCIAL STATEMENTS
Percentage of direct/indirect interest in capital stock and votes of entities included in consolidation			100.00%
Televisin Dirigida [Member]
DESCRIPTION OF BUSINESS AND BASIS OF PREPARATION OF THE CONSOLIDATED FINANCIAL STATEMENTS
Percentage of direct/indirect interest in capital stock and votes of entities included in consolidation			100.00%