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v3.25.1

SIGNIFICANT ACCOUNTING POLICIES, Equity Accounts (Details) | 12 Months Ended
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Dec. 31, 2024
Equity accounts [Abstract] |
Percentage of legal reserve of net income | 5.00%
Percentage of legal reserve on sum of Capital stock and Adjustment to capital stock balances | 20.00%

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

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- Definition Pursuant to the provisions of the Argentine Business Association Law and the CNV, minimum percentage of net income required to setup legal reserve. + References No definition available. + Details
Name: | tgs_PercentageOfAggregateAmountOfNetIncomeToSetupLegalReserve
Namespace Prefix: | tgs_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

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- Definition Refers to percentage of legal reserves on sum of capital stock and adjustment to capital stock balances. + References No definition available. + Details
Name: | tgs_PercentageOfLegalReserveOnSumOfCapitalStockAndAdjustmentToCapitalStockBalances
Namespace Prefix: | tgs_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration