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INVESTMENTS IN ASSOCIATES (Details) - ARS ($) $ / shares in Units, $ in Thousands | Dec. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Investments in associates [Abstract] |  |
Book value | $ 1,225,330 | $ 981,530
Transporte y Servicios de Gas en Uruguay S.A. [Member] |  |
Investments in associates [Abstract] |  |
Face value (in pesos per share) | $ 0 |
Amount | $ 0 |
Book value | $ 0 | 58,271
Gas Link S.A. [Member] |  |
Investments in associates [Abstract] |  |
Face value (in pesos per share) | $ 1 |
Amount | $ 502,962 |
Book value | $ 1,225,330 | $ 923,259

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- Definition The amount of investments in associates in an entity's separate financial statements. [Refer: Total for all associates [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 27 -IssueDate 2024-01-01 -Paragraph 10 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=27&code=ifrs-tx-2024-en-r&anchor=para_10&doctype=Standard -URIDate 2024-03-27 + Details
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Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
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 2024-01-01 -Paragraph 79 -Subparagraph a -Clause iii -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_79_a_iii&doctype=Standard -URIDate 2024-03-27 + 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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Period Type: | duration

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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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Balance Type: |
Period Type: |