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BUSINESS DESCRIPTION, Summary (Details) | 12 Months Ended
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Dec. 31, 2021 Extension
Business Overview [Abstract] |
Term of transportation license granted | 35 years
Number of extension entitled | 1
Term of the extension | 10 years

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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

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- Definition Refers to the number of extensions entitled by the entity on license granted. + References No definition available. + Details
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Namespace Prefix: | tgs_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

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- Definition Term of extension on license granted to the entity. + References No definition available. + Details
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Namespace Prefix: | tgs_
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Balance Type: | na
Period Type: | duration

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- 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_
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Balance Type: | na
Period Type: | duration