XML 98 R73.htm IDEA: XBRL DOCUMENT
v3.21.1

DETAIL OF SIGNIFICANT STATEMENT OF FINANCIAL POSITION AND STATEMENT OF COMPREHENSIVE INCOME CAPTIONS, Other Financial Assets at Amortized Cost (Details) - ARS ($) $ in Thousands | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Current [Abstract] |  |
Other financial assets at amortized cost | $ 18,319 | $ 1,421,253
Non Current [Abstract] |  |
Other financial assets at amortized cost | 13,759,012 | 7,356
Other Financial Assets at Amortized Cost [Member] |  |
Current [Abstract] |  |
Other financial assets at amortized cost | 18,319 | 1,421,253
Non Current [Abstract] |  |
Other financial assets at amortized cost | 13,759,012 | 7,356
Fixed Term Deposits in Foreign Currency [Member] |  |
Current [Abstract] |  |
Other financial assets at amortized cost | 0 | 0
Non Current [Abstract] |  |
Other financial assets at amortized cost | 13,755,917 | 0
VRD Bonds [Member] |  |
Current [Abstract] |  |
Other financial assets at amortized cost | 3,044 | 4,568
Non Current [Abstract] |  |
Other financial assets at amortized cost | 3,095 | 7,356
US Treasury Bills [Member] |  |
Current [Abstract] |  |
Other financial assets at amortized cost | 0 | 1,416,685
Non Current [Abstract] |  |
Other financial assets at amortized cost | 0 | 0
Private Debt Bonds [Member] |  |
Current [Abstract] |  |
Other financial assets at amortized cost | 15,275 | 0
Non Current [Abstract] |  |
Other financial assets at amortized cost | $ 0 | $ 0

X
- Definition The amount of current financial assets measured at amortised cost. [Refer: Financial assets at amortised cost] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2020-01-01 -Paragraph 8 -Subparagraph f -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2020-en-r&anchor=para_8_f&doctype=Standard -URIDate 2020-01-01 + Details
Name: | ifrs-full_CurrentFinancialAssetsAtAmortisedCost
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The amount of non-current financial assets measured at amortised cost. [Refer: Financial assets at amortised cost] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2020-01-01 -Paragraph 8 -Subparagraph f -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2020-en-r&anchor=para_8_f&doctype=Standard -URIDate 2020-01-01 + Details
Name: | ifrs-full_NoncurrentFinancialAssetsAtAmortisedCost
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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

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

X
- Details
Name: | ifrs-full_ClassesOfFinancialAssetsAxis=ifrs-full_FinancialAssetsAtAmortisedCostMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfFinancialAssetsAxis=tgs_FixedTermDepositsInForeignCurrencyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfFinancialAssetsAxis=tgs_VariableRateDemandBondMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfFinancialAssetsAxis=tgs_USTreasuryBillsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfFinancialAssetsAxis=tgs_CorporateBondsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |