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v3.21.1

ASSOCIATES AND JOINT ARRANGEMENTS (Details) $ in Thousands |  | 12 Months Ended
--- | --- | ---
Nov. 13, 2013 USD ($) | Dec. 31, 2020 ARS ($) | Dec. 31, 2019 ARS ($) | Dec. 31, 2018 ARS ($)
Information about associates and arrangements [Abstract] |  |  |  |
Purchase of fixed assets |  | $ 7,769,600 | $ 21,689,918 | $ 17,013,254
UT [Member] |  |  |  |
Information about associates and arrangements [Abstract] |  |  |  |
Guarantee period from the provisional reception of the UT Works |  | 18 months |  |
Link [Member] |  |  |  |
Information about associates and arrangements [Abstract] |  |  |  |
Percentage of ownership |  | 49.00% |  |
Link [Member] | Dinarel S.A. [Member] |  |  |  |
Information about associates and arrangements [Abstract] |  |  |  |
Percentage of joint ownership |  | 51.00% |  |
TGU [Member] |  |  |  |
Information about associates and arrangements [Abstract] |  |  |  |
Percentage of ownership |  | 49.00% |  |
TGU [Member] | Pampa Energia [Member] |  |  |  |
Information about associates and arrangements [Abstract] |  |  |  |
Percentage of joint ownership |  | 51.00% |  |
EGS [Member] |  |  |  |
Information about associates and arrangements [Abstract] |  |  |  |
Percentage of ownership |  | 49.00% |  |
Percentage of joint ownership |  | 51.00% |  |
Purchase of fixed assets | $ 350,000 |  |  |

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