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DETAIL OF SIGNIFICANT STATEMENT OF FINANCIAL POSITION AND STATEMENT OF COMPREHENSIVE INCOME CAPTIONS, Contract Liabilities (Details) - ARS ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020
Current liabilities [abstract] |  |
Contract liabilities | $ 502,366 | $ 479,972
Non Current liabilities [abstract] |  |
Contract liabilities | 5,628,101 | 6,116,347
Revenue recognized from contracts with customers | 386,958 | 298,490
Natural Gas Transportation [Member] |  |
Current liabilities [abstract] |  |
Contract liabilities | 185,266 | 185,267
Non Current liabilities [abstract] |  |
Contract liabilities | 3,215,176 | 3,400,458
Production and Commercialization of Liquids [Member] |  |
Current liabilities [abstract] |  |
Contract liabilities | 135,321 | 103,317
Non Current liabilities [abstract] |  |
Contract liabilities | 463,525 | 598,844
Other Services [Member] |  |
Current liabilities [abstract] |  |
Contract liabilities | 168,369 | 167,921
Non Current liabilities [abstract] |  |
Contract liabilities | 1,949,400 | 2,117,045
UT [Member] |  |
Current liabilities [abstract] |  |
Contract liabilities | 13,410 | 23,467
Non Current liabilities [abstract] |  |
Contract liabilities | $ 0 | $ 0

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- Definition The amount of current contract liabilities. [Refer: Contract liabilities] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 15 -IssueDate 2021-01-01 -Paragraph 105 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=15&code=ifrs-tx-2021-en-r&anchor=para_105&doctype=Standard -URIDate 2021-03-24 + Details
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Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
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 non-current contract liabilities. [Refer: Contract liabilities] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 15 -IssueDate 2021-01-01 -Paragraph 105 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=15&code=ifrs-tx-2021-en-r&anchor=para_105&doctype=Standard -URIDate 2021-03-24 + Details
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Namespace Prefix: | ifrs-full_
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Balance Type: | credit
Period Type: | instant

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- References No definition available. + Details
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- Definition The amount of revenue that was included in the contract liability balance at the beginning of the period. [Refer: Contract liabilities; Revenue from contracts with customers] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 15 -IssueDate 2021-01-01 -Paragraph 116 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=15&code=ifrs-tx-2021-en-r&anchor=para_116_b&doctype=Standard -URIDate 2021-03-24 + Details
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- Details
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Namespace Prefix: |
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Balance Type: |
Period Type: |

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- Details
Name: | ifrs-full_SegmentsAxis=tgs_ProductionAndCommercializationOfLiquidsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
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Balance Type: |
Period Type: |