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LEGAL CLAIMS AND OTHER MATTERS (Details) $ in Millions |  | 12 Months Ended |
--- | --- | --- | ---
Jun. 04, 2021 Extension | Dec. 31, 2023 ARS ($) | Dec. 31, 2022 ARS ($)
LEGAL CLAIMS AND OTHER MATTERS [Abstract] |  |  |
Provision amount on turnover tax |  | $ 2,153.4 | $ 5,161.3
Validity period of precautionary measure |  | 6 months |
Extended Validity Period of Precautionary Measure |  | 6 months |
Number of extensions obtained | Extension | 12 |  |
Provision amount on environmental matters |  | $ 81.1 | 182.2
Provision for other matters |  | $ 168.4 | $ 241.0

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- Definition The amount of provision for legal proceedings. [Refer: Other provisions] + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 37 -IssueDate 2023-01-01 -Section Example 10 A court case -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=37&code=ifrs-tx-2023-en-r&doctype=Illustrative%20Examples&dita_xref=IAS37_IE_C_ex10_TI -URIDate 2023-03-23 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 37 -IssueDate 2023-01-01 -Paragraph 87 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=37&code=ifrs-tx-2023-en-r&anchor=para_87&doctype=Standard -URIDate 2023-03-23 + Details
Name: | ifrs-full_LegalProceedingsProvision
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Refers to the extended validity period of precautionary measure. + References No definition available. + Details
Name: | tgs_ExtendedValidityPeriodOfPrecautionaryMeasure
Namespace Prefix: | tgs_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

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

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- Definition This element represents number of extensions obtained by the entity. + References No definition available. + Details
Name: | tgs_NumberOfExtensionsObtained
Namespace Prefix: | tgs_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

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- Definition The amount of provision for environmental protection. + References No definition available. + Details
Name: | tgs_ProvisionForEnvironmentalMatters
Namespace Prefix: | tgs_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition The amount of provision for turnover tax calculated on the natural gas price consumed by entity. + References No definition available. + Details
Name: | tgs_ProvisionForTurnoverTax
Namespace Prefix: | tgs_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Refers to the validity period of precautionary measure. + References No definition available. + Details
Name: | tgs_ValidityPeriodOfPrecautionaryMeasure
Namespace Prefix: | tgs_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration