The amount of investment property acquired pursuant to the Five Year Plan.

No definition available.

Name:	tgs_AcquisitionsInvestmentPropertyAmount
Namespace Prefix:	tgs_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Additional period related to natural gas transportation and distribution tariff freeze represented in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

Name:	tgs_AdditionalPeriodForTransitoryTariffsFreeze
Namespace Prefix:	tgs_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Refers to the Argentine peso to U.S. dollar conversion rate of exchange for tariffs.

+ References

No definition available.

+ Details

Name:	tgs_ConversionRateOfExchangeForTariffs
Namespace Prefix:	tgs_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	duration

- References

No definition available.

+ Details

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

- Definition

Refers to the investment plan period.

+ References

No definition available.

+ Details

Name:	tgs_InvestmentPlanPeriod
Namespace Prefix:	tgs_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Refers to the license period, after renewal.

+ References

No definition available.

+ Details

Name:	tgs_LicensePeriodAfterRenewal
Namespace Prefix:	tgs_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Refers to the natural gas transportation tariffs period, in condition one.

+ References

No definition available.

+ Details

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

- Definition

Refers to the natural gas transportation tariffs period, in condition two.

+ References

No definition available.

+ Details

Name:	tgs_NaturalGasTransportationTariffsPeriodConditionTwo
Namespace Prefix:	tgs_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of installments for the tariff increase that was granted. These tariffs are related to natural gas transport service.

+ References

No definition available.

+ Details

Name:	tgs_NumberOfInstallmentsTariffIncrease
Namespace Prefix:	tgs_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

This element represents number of years for negotiations under transitional agreement.

+ References

No definition available.

+ Details

Name:	tgs_NumberOfYearsForNegotiationsUnderTransitionalAgreement
Namespace Prefix:	tgs_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Refers to the percentage of increase in tariff.

+ References

No definition available.

+ Details

Name:	tgs_PercentageOfIncreaseInTariff
Namespace Prefix:	tgs_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Refers to the percentage of increase in tariff on access and use.

+ References

No definition available.

+ Details

Name:	tgs_PercentageOfIncreaseInTariffOnAccessAndUse
Namespace Prefix:	tgs_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Refers to the percentage of increase in tariff on service for natural gas transportation.

+ References

No definition available.

+ Details

Name:	tgs_PercentageOfIncreaseInTariffOnServiceForNaturalGasTransportation
Namespace Prefix:	tgs_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Refers to the percentage of tariff increase on public service of Natural Gas Transportation and CAU.

+ References

No definition available.

+ Details

Name:	tgs_PercentageOfTariffIncreaseOnPublicServiceOfNaturalGasTransportationAndCAU
Namespace Prefix:	tgs_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Period of natural gas transportation and distribution tariff established by solidarity law were extended without adjustments represented in in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

Name:	tgs_PeriodForNaturalGasTransportationAndDistributionTariffsExtended
Namespace Prefix:	tgs_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

The maximum period of natural gas transportation and distribution tariff established by solidarity law.

+ References

No definition available.

+ Details

Name:	tgs_PeriodOfNaturalGasTransportationAndDistributionTariffRemainUnadjusted
Namespace Prefix:	tgs_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Period for which tariffs related to natural gas are reviewed represented in in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

Name:	tgs_TariffReviewPeriod
Namespace Prefix:	tgs_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- References

No definition available.

+ Details

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

- Definition

Term of extension on license granted to the entity.

+ References

No definition available.

+ Details

Name:	tgs_TermOfExtensionOnLicenseGranted
Namespace Prefix:	tgs_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Term of transportation license granted to the entity for the transportation and extraction of natural gas.

+ References

No definition available.

+ Details

Name:	tgs_TermOfTransportationLicenseGranted
Namespace Prefix:	tgs_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- References

No definition available.

+ Details

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

- Definition

The number of stages requested for the transitory tariff adjustment.

+ References

No definition available.

+ Details

Name:	tgs_TransitoryTariffAdjustmentNumberOfStages
Namespace Prefix:	tgs_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

The percentage adjustment to the transitory tariff requested by the entity in response to the changed in operating costs and macroeconomic indicators.

+ References

No definition available.

+ Details

Name:	tgs_TransitoryTariffAdjustmentPercentage
Namespace Prefix:	tgs_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	ifrs-full_NonadjustingEventsAfterReportingPeriodAxis=tgs_SubsequentEventsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_RangeAxis=ifrs-full_TopOfRangeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

REGULATORY FRAMEWORK, General Framework of the Natural Gas Transportation Segment (Details) $ in Thousands		12 Months Ended
	Jan. 19, 2022 stage	Dec. 31, 2021 ARS ($) Installment	Mar. 01, 2022	Apr. 02, 2021	Apr. 01, 2019	Oct. 02, 2018	Sep. 04, 2018	Apr. 01, 2018	Dec. 01, 2017	Apr. 02, 2017	Mar. 30, 2017
General aspects [Abstract]
Original license period		35 years
License period, renewal		10 years
License period, after renewal		45 years
Tariff situation [Abstract]
Natural gas transportation tariffs period, condition one		semiannually
Natural gas transportation tariffs period, condition two		5 years
Conversion rate of exchange for tariffs		1
Number of years for negotiations under transitional agreement		17 years
Transitional Agreement [Abstract]
Percentage of increase in tariff on service for natural gas transportation					26.00%				81.10%	64.20%	214.20%
Percentage of increase in tariff on access and use									29.70%		37.00%
Investment plan period		5 years
Five Year Plan investment amount \| $		$ 6,786,543
Number of installments tariff increase granted \| Installment		3
Percentage of tariff increase on public service of Natural Gas Transportation and CAU								50.00%
Percentage of increase in tariff				58.60%		19.70%	30.00%
Period of natural gas transportation and distribution tariff remain unadjusted		180 days
Period for natural gas transportation and distribution tariffs extended		180 days
Additional period for transitory tariffs freeze		90 days
Subsequent Event [Member]
Transitional Agreement [Abstract]
Percentage of increase in tariff			60.00%
Transitory tariff adjustment applied stages \| stage	2
Transitory tariff adjustment percentage	106.00%
Top of Range [Member]
Transitional Agreement [Abstract]
Tariff review period		2 years