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PROPERTY, PLANT AND EQUIPMENT, Right-of-use Assets (Details) - ARS ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Other Services and Production and Commercialization of Liquids Segments [Abstract] |  |  |
Right-of-use assets | $ 9,866,955 | $ 11,571,951 |
Book value Variation of Rights-of Use [Abstract] |  |  |
Depreciation, right-of-use assets | (3,518,736) | (3,155,988) | $ (3,155,988)
Other Plants [Member] |  |  |
Other Services and Production and Commercialization of Liquids Segments [Abstract] |  |  |
Right-of-use assets | 2,235,293 | 3,073,528 |
Book value Variation of Rights-of Use [Abstract] |  |  |
Depreciation, right-of-use assets | (838,235) | (838,235) | (838,235)
Compressor Plants [Member] |  |  |
Other Services and Production and Commercialization of Liquids Segments [Abstract] |  |  |
Right-of-use assets | 5,549,632 | 7,630,745 |
Book value Variation of Rights-of Use [Abstract] |  |  |
Depreciation, right-of-use assets | (2,081,113) | (2,081,113) | (2,081,113)
Other Technical Installations [Member] |  |  |
Other Services and Production and Commercialization of Liquids Segments [Abstract] |  |  |
Right-of-use assets | 631,038 | 867,678 |
Book value Variation of Rights-of Use [Abstract] |  |  |
Depreciation, right-of-use assets | (236,640) | (236,640) | (236,640)
Buildings [Member] |  |  |
Other Services and Production and Commercialization of Liquids Segments [Abstract] |  |  |
Right-of-use assets | 1,450,992 | 0 |
Book value Variation of Rights-of Use [Abstract] |  |  |
Depreciation, right-of-use assets | $ (362,748) | $ 0 | $ 0

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- Definition The amount of depreciation of right-of-use assets. [Refer: Depreciation and amortisation expense; Right-of-use assets] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 16 -IssueDate 2023-01-01 -Paragraph 53 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2023-en-r&anchor=para_53_a&doctype=Standard -URIDate 2023-03-23 + Details
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Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

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- Definition The amount of assets that represent a lessee's right to use an underlying asset for the lease term that do not meet the definition of investment property. Underlying asset is an asset that is the subject of a lease, for which the right to use that asset has been provided by a lessor to a lessee. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 16 -IssueDate 2023-01-01 -Paragraph 53 -Subparagraph j -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2023-en-r&anchor=para_53_j&doctype=Standard -URIDate 2023-03-23 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 16 -IssueDate 2023-01-01 -Paragraph 47 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2023-en-r&anchor=para_47_a&doctype=Standard -URIDate 2023-03-23 + Details
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Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- References No definition available. + Details
Name: | tgs_BookValueVariationOfRightsOfUseAbstract
Namespace Prefix: | tgs_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- References No definition available. + Details
Name: | tgs_OtherServicesAndProductionAndCommercializationOfLiquidsSegmentsAbstract
Namespace Prefix: | tgs_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=tgs_OtherPlantsMember
Namespace Prefix: |
Data Type: | na
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- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=tgs_CompressorPlantsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
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- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=tgs_OtherTechnicalInstallationsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
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