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FINANCIAL RISK MANAGEMENT, Credit Risk, Trade and Other Receivables (Details) - ARS ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Trade and Other Receivables, Current and Noncurrent [Abstract] |  |  |  |  |
Current trade receivables | $ 10,756,021 |  | $ 9,479,095 |  |
Allowances for doubtful accounts | (132,521) | [1] | (200,029) | [1] | $ (277,325)
Total | 10,623,500 |  | 9,279,066 |  |
Credits for subsidies | 1,246,096 |  |  |  |
Trade and other receivables [Abstract] |  |  |  |  |
Revenues | 88,976,328 |  | 84,333,261 |  | 99,790,386
Cash and financial placements [Abstract] |  |  |  |  |
Exchange losses on financial instruments | (1,896,864) |  | 12,041,714 |  |
Natural Gas Transportation [Member] |  |  |  |  |
Trade and other receivables [Abstract] |  |  |  |  |
Revenues |  |  | 35,473,714 |  |
Natural Gas Transportation [Member] | MetroGas [Member] |  |  |  |  |
Trade and other receivables [Abstract] |  |  |  |  |
Revenues | 6,068,906 |  | 8,896,666 |  | 12,019,559
Trade receivables | 1,442,363 |  | 2,176,289 |  |
Natural Gas Transportation [Member] | Camuzzi Gas Pampeana S.A. [Member] |  |  |  |  |
Trade and other receivables [Abstract] |  |  |  |  |
Revenues | 4,470,877 |  | 6,578,246 |  | 8,945,151
Trade receivables | 350,002 |  | 1,065,858 |  |
Natural Gas Transportation [Member] | Naturgy Argentina [Member] |  |  |  |  |
Trade and other receivables [Abstract] |  |  |  |  |
Revenues | 3,619,951 |  | 5,317,677 |  | 7,184,143
Trade receivables | 300,943 |  | 473,256 |  |
Natural Gas Transportation [Member] | CAMMESA [Member] |  |  |  |  |
Trade and other receivables [Abstract] |  |  |  |  |
Revenues | 2,772,294 |  | 3,535,855 |  | 2,749,488
Trade receivables | 612,967 |  | 1,005,463 |  |
Natural Gas Transportation [Member] | Pampa Energia [Member] |  |  |  |  |
Trade and other receivables [Abstract] |  |  |  |  |
Revenues | 855,551 |  | 1,269,833 |  | 1,651,360
Trade receivables | 327,428 |  | 463,383 |  |
Natural Gas Transportation [Member] | Camuzzi Gas del Sur S.A. [Member] |  |  |  |  |
Trade and other receivables [Abstract] |  |  |  |  |
Revenues | 1,033,392 |  | 1,574,291 |  | 2,210,576
Trade receivables | 151,421 |  | 221,831 |  |
Liquids Production and Commercialization [Member] | PBB Polisur [Member] |  |  |  |  |
Trade and other receivables [Abstract] |  |  |  |  |
Revenues | 13,685,117 |  | 14,043,121 |  | 13,024,592
Trade receivables | 1,426,407 |  | 1,174,010 |  |
Liquids Production and Commercialization [Member] | Petredec [Member] |  |  |  |  |
Trade and other receivables [Abstract] |  |  |  |  |
Revenues | 0 |  | 1,043,349 |  | 2,061,636
Trade receivables | 0 |  | 0 |  |
Liquids Production and Commercialization [Member] | Geogas Trading S.A. [Member] |  |  |  |  |
Trade and other receivables [Abstract] |  |  |  |  |
Revenues | 3,800,056 |  | 434,033 |  | 3,476,753
Trade receivables | 2,687,682 |  | 0 |  |
Liquids Production and Commercialization [Member] | Italgas S.A. [Member] |  |  |  |  |
Trade and other receivables [Abstract] |  |  |  |  |
Revenues | 151,457 |  | 598,192 |  | 0
Trade receivables | 0 |  | 0 |  |
Liquids Production and Commercialization [Member] | YPF [Member] |  |  |  |  |
Trade and other receivables [Abstract] |  |  |  |  |
Revenues | 1,899,572 |  | 1,469,282 |  | 2,546,266
Trade receivables | 34,309 |  | 63,945 |  |
Liquids Production and Commercialization [Member] | Petrobras Global Trading BV [Member] |  |  |  |  |
Trade and other receivables [Abstract] |  |  |  |  |
Revenues | 5,623,159 |  | 6,808,862 |  | 9,136,707
Trade receivables | 0 |  | 428,809 |  |
Liquids Production and Commercialization [Member] | Trafigura Beheer [Member] |  |  |  |  |
Trade and other receivables [Abstract] |  |  |  |  |
Revenues | 6,925,555 |  | 0 |  | $ 0
Trade receivables | $ 691,580 |  | $ 0 |  |
[1] | Said amount represents the best estimate made by tgs according to what is stated in Note 4.b).

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