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FINANCIAL RISK MANAGEMENT, Commodity Price Risk (Details) - Commodity Price Risk [Member] $ in Thousands | 12 Months Ended
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Dec. 31, 2022 ARS ($) $ / Ton | Dec. 31, 2021 ARS ($) $ / Ton | Dec. 31, 2020 ARS ($) $ / Ton
Commodity Rate Risk [Abstract] |  |  |
Percentage decrease in price of Liquids due to COVID | 30.00% |  |
Increase (decrease) in international price of LPG and natural gasoline | $ / Ton | 50 | 50 | 50
Liquids Production and Commercialization [Member] |  |  |
Commodity Rate Risk [Abstract] |  |  |
Decrease in net comprehensive income due to commodity risk | $ | $ 3,207,213 | $ 4,378,871 | $ 5,935,956

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- Definition The amount of decrease in net comprehensive income due to commodity risk. + References No definition available. + Details
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Namespace Prefix: | tgs_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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

X
- Definition Refers to decrease in the international price of liquid petroleum gas and natural gasoline per unit. + References No definition available. + Details
Name: | tgs_IncreaseDecreaseInInternationalPriceOfLiquidPetroleumGasAndNaturalGasoline
Namespace Prefix: | tgs_
Data Type: | srt-types:perUnitItemType
Balance Type: | na
Period Type: | duration

X
- Definition The percentage decrease in price of Liquids due to COVID. + References No definition available. + Details
Name: | tgs_PercentageDecreaseInPriceOfLiquidsDueToCOVID
Namespace Prefix: | tgs_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | ifrs-full_TypesOfRisksAxis=ifrs-full_CommodityPriceRiskMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
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X
- Details
Name: | ifrs-full_SegmentsAxis=tgs_ProductionAndCommercializationOfLiquidsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |