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SUPPLEMENTAL CASH FLOW INFORMATION (Details) - ARS ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Non-cash Investing and Financing Activities [Abstract] |  |  |  |
Unpaid acquisition of PPE |  | $ 20,043,792 | $ 15,470,394 | $ 12,524,749
Principal payment of financial lease | [1] | $ 7,492,491 | $ 5,844,723 | $ 6,113,542
[1] | Cancelled through compensation with trade receivables with the creditor. See Note 13.

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

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- Definition Refers to the principal payment of finance lease. + References No definition available. + Details
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Namespace Prefix: | tgs_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition The unpaid amount for the acquisition of property, plant and equipment. + References No definition available. + Details
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Namespace Prefix: | tgs_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration