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INVESTMENTS IN ASSOCIATES (Details) - ARS ($) $ / shares in Units, $ in Thousands | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Investments in associates [Abstract] |  |
Book value | $ 450,732 | $ 481,131
Transporte y Servicios de Gas en Uruguay S.A. [Member] |  |
Investments in associates [Abstract] |  |
Face value (in pesos per share) | $ 1 |
Amount | $ 196,000 |
Book value | $ 26,759 | 42,046
Emprendimientos de Gas del Sur S.A. [Member] |  |
Investments in associates [Abstract] |  |
Face value (in pesos per share) | $ 1 |
Amount | $ 116,130 |
Book value | $ 0 | 2,180
Gas Link S.A. [Member] |  |
Investments in associates [Abstract] |  |
Face value (in pesos per share) | $ 1 |
Amount | $ 502,962 |
Book value | $ 423,973 | $ 436,905

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- Definition The amount of investments in associates in an entity's separate financial statements. [Refer: Associates [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 27 -IssueDate 2023-01-01 -Paragraph 10 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=27&code=ifrs-tx-2023-en-r&anchor=para_10&doctype=Standard -URIDate 2023-03-23 + Details
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Namespace Prefix: | ifrs-full_
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Balance Type: | debit
Period Type: | instant

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- Definition The nominal value per share. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2023-01-01 -Paragraph 79 -Subparagraph a -Clause iii -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_79_a_iii&doctype=Standard -URIDate 2023-03-23 + Details
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Balance Type: | na
Period Type: | instant

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- References No definition available. + Details
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Namespace Prefix: | tgs_
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- Definition The amount at the time of investment in associates carried at cost within fair value model. + References No definition available. + Details
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- Details
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- Details
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