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DETAIL OF SIGNIFICANT STATEMENT OF FINANCIAL POSITION AND STATEMENT OF COMPREHENSIVE INCOME CAPTIONS, Trade Receivables (Details) - ARS ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Current [Abstract] |  |  |  |  |
Third parties |  | $ 142,860,672 | $ 96,720,799 |  |
Related parties |  | 13,457,571 | 14,563,457 |  |
Allowance for doubtful accounts | [1] | (301,770) | (657,145) |  |
Total |  | 156,016,473 | 110,627,111 |  |
Allowance for doubtful accounts [Abstract] |  |  |  |  |
Balance at the beginning of the period |  | 657,145 | 898,669 |  | $ 1,750,545
Inflation adjustment restatement |  | (355,375) | (610,087) |  | (851,876)
Additions |  | 0 | 371,535 | [2] | 0
Applications |  | 0 | (2,972) |  | 0
Reversals |  | 0 | 0 |  | 0
Balance at the end of period |  | 301,770 | 657,145 |  | $ 898,669
Natural Gas Transportation [Member] |  |  |  |  |
Current [Abstract] |  |  |  |  |
Third parties |  | 62,947,107 | 33,748,153 |  |
Related parties |  | 2,253,965 | 578,566 |  |
Liquids Production and Commercialization [Member] |  |  |  |  |
Current [Abstract] |  |  |  |  |
Third parties |  | 45,620,911 | 34,435,457 |  |
Related parties |  | 2,377,690 | 1,407,443 |  |
Midstream [Member] |  |  |  |  |
Current [Abstract] |  |  |  |  |
Third parties |  | 34,292,654 | 28,537,189 |  |
Related parties |  | $ 8,825,916 | $ 12,577,448 |  |
[1] | Said amount represents the best estimate made by tgs according to what is stated in Note 4.b).
[2] | Included in “Selling expenses”.

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- Definition The amount of current trade receivables. [Refer: Trade receivables] + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 68 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_68&doctype=Standard -URIDate 2024-03-27 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 78 -Subparagraph b -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_78_b&doctype=Standard -URIDate 2024-03-27 + Details
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Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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

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- Definition The amount of current receivables due from related parties. [Refer: Total for all related parties [member]] + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 78 -Subparagraph b -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_78_b&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The amount of additional allowance for credit losses of financial assets other receivables recognised in profit or loss. [Refer: Allowance account for credit losses of financial assets] + References No definition available. + Details
Name: | tgs_AdditionalAllowanceRecognisedInProfitOrLossAllowanceAccountForCreditLossesOfFinancialAssetsOtherReceivables
Namespace Prefix: | tgs_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition The current amount of an allowance account used to record impairments to financial assets due to credit losses. [Refer: Financial assets] + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition The amount of an allowance account used to record impairments to financial assets due to credit losses. [Refer: Financial assets] + References No definition available. + Details
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Namespace Prefix: | tgs_
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- Definition The amount of current ordinary trade receivables. + References No definition available. + Details
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Balance Type: | debit
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- References No definition available. + Details
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- Definition The increase (decrease) in allowance account for credit losses of financial assets other receivables resulting from changes that the entity does not separately disclose in the same statement or note. [Refer: Allowance account for credit losses of financial assets] + References No definition available. + Details
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Balance Type: | credit
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- Definition The decrease in an allowance account for credit losses of financial assets other receivables resulting from the reversal of impairment. [Refer: Allowance account for credit losses of financial assets] + References No definition available. + Details
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Balance Type: | credit
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- Definition The decrease in an allowance account for credit losses other receivables of financial assets resulting from the utilisation of the allowance. [Refer: Allowance account for credit losses of financial assets] + References No definition available. + Details
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Balance Type: | debit
Period Type: | duration

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