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LOANS, Financial leasing and Covenants (Details) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2023 USD ($) Installment | Jan. 31, 2023 ARS ($)
Financial Leasing [Abstract] |  |
Number of monthly installments | Installment | 119 |
New lease incurred |  | $ 1,799,578
Bottom of Range [Member] |  |
Covenants [Abstract] |  |
Consolidated coverage ratio | 2 |
Top of Range [Member] |  |
Covenants [Abstract] |  |
Consolidated debt ratio | 3.75 |
Pampa Energia [Member] |  |
Financial Leasing [Abstract] |  |
Monthly payment amount | $ 623,457 |
Period of option to purchase financial leasing agreement for same amount | 120 months |

X
- Definition The amount of liabilities related to the entity's leases. Lease is a contract, or part of a contract, that conveys the right to use an underlying asset for a period of time in exchange for consideration. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 16 -IssueDate 2023-01-01 -Paragraph 47 -Subparagraph b -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2023-en-r&anchor=para_47_b&doctype=Standard -URIDate 2023-03-23 + Details
Name: | ifrs-full_LeaseLiabilities
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Refers to the consolidated coverage ratio (calculated as the quotient of the consolidated adjusted EBITDA earnings before financial results, income tax, depreciation and amortization) and the consolidated interest expense. + References No definition available. + Details
Name: | tgs_ConsolidatedCoverageRatio
Namespace Prefix: | tgs_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | duration

X
- Definition Refers to the consolidated debt ratio (calculated as the quotient of the consolidated debt and the consolidated EBITDA). + References No definition available. + Details
Name: | tgs_ConsolidatedDebtRatio
Namespace Prefix: | tgs_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | duration

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

X
- Definition The number of periodic installments for financing lease acquisition. + References No definition available. + Details
Name: | tgs_FinanceLeaseNumberOfInstallments
Namespace Prefix: | tgs_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of the required periodic payments for a finance lease. + References No definition available. + Details
Name: | tgs_FinanceLeasePeriodicPaymentAmount
Namespace Prefix: | tgs_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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

X
- Definition Refers to the option to purchase financial leasing agreement for same amount. + References No definition available. + Details
Name: | tgs_PeriodOfOptionToPurchaseFinancialLeasingAgreementForSameAmount
Namespace Prefix: | tgs_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | ifrs-full_RangeAxis=ifrs-full_BottomOfRangeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_RangeAxis=ifrs-full_TopOfRangeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ConsolidatedStructuredEntitiesAxis=tgs_PampaEnergiaSAMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |