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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

X

- 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

X

- 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

X

- References

No definition available.

+ Details

Name:	tgs_LegalClaimsAndOtherMattersAbstract
Namespace Prefix:	tgs_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- 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

X

- 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

X

- 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