SEC Info℠  
    Home      Search      My Interests      Help      Sign In      Please Sign In

Gas Transporter of the South Inc. – ‘20-F’ for 12/31/23 – ‘XML’

On:  Wednesday, 4/24/24, at 3:46pm ET   ·   For:  12/31/23   ·   Accession #:  1140361-24-21683   ·   File #:  1-13396

Previous ‘20-F’:  ‘20-F’ on 4/25/23 for 12/31/22   ·   Latest ‘20-F’:  This Filing   ·   8 References:   

Find Words in Filings emoji
 		  in    Show  and   ↓Hints

  As Of               Filer                 Filing    For·On·As Docs:Size             Issuer                      Filing Agent

 4/24/24  Gas Transporter of the South Inc. 20-F       12/31/23  136:35M                                    Broadridge Fin’l So… Inc

Annual or Annual-Transition Report by a Foreign Non-Canadian Issuer   —   Form 20-F   —   SEA’34

Filing Table of Contents

Document/Exhibit                   Description                      Pages   Size 

 1: 20-F        Annual or Annual-Transition Report by a Foreign     HTML   8.60M 
                Non-Canadian Issuer                                              
 2: EX-2.6      Plan of Acquisition, Reorganization, Arrangement,   HTML     93K 
                Liquidation or Succession                                        
 3: EX-8.1      Opinion of Counsel re: Tax Matters                  HTML     38K 
 4: EX-9.1      Voting Trust Agreement                              HTML     53K 
 7: EX-13.1     Annual or Quarterly Report to Security Holders      HTML     38K 
 8: EX-13.2     Annual or Quarterly Report to Security Holders      HTML     38K 
 5: EX-12.1     Statement re: the Computation of Ratios             HTML     45K 
 6: EX-12.2     Statement re: the Computation of Ratios             HTML     45K 
14: R1          Document and Entity Information                     HTML    121K 
15: R2          Consolidated Statements of Comprehensive Income     HTML     99K 
16: R3          Consolidated Statements of Financial Position       HTML    137K 
17: R4          Consolidated Statements of Changes in Equity        HTML     66K 
18: R5          Consolidated Statements of Changes in Equity        HTML     48K 
                (Parenthetical)                                                  
19: R6          Consolidated Statements of Cash Flows               HTML    137K 
20: R7          Business Description                                HTML     66K 
21: R8          Consolidated Financial Statements                   HTML     40K 
22: R9          Basis of Presentation                               HTML     42K 
23: R10         Significant Accounting Policies                     HTML    232K 
24: R11         Critical Accounting Estimates and Judgements        HTML     54K 
25: R12         Supplemental Cash Flow Information                  HTML     47K 
26: R13         Consolidated Business Segment Information           HTML    192K 
27: R14         Detail of Significant Statement of Financial        HTML    739K 
                Position and Statement of Comprehensive Income                   
                Captions                                                         
28: R15         Investments in Associates                           HTML     62K 
29: R16         Joint Arrangements                                  HTML     63K 
30: R17         Share of (Loss) / Profit From Associates            HTML     49K 
31: R18         Property, Plant and Equipment                       HTML    700K 
32: R19         Loans                                               HTML    163K 
33: R20         Income Tax and Deferred Tax                         HTML    162K 
34: R21         Evolution of Provisions                             HTML     54K 
35: R22         Financial Risk Management                           HTML    540K 
36: R23         Regulatory Framework                                HTML    111K 
37: R24         Assets and Liabilities in Forreign Currency         HTML    161K 
38: R25         Common Stock and Dividends                          HTML     54K 
39: R26         Legal Claims and Other Matters                      HTML     55K 
40: R27         Balances and Transactions With Related Companies    HTML    337K 
41: R28         Contractual Obligations                             HTML     63K 
42: R29         Associates and Joint Arrangements                   HTML     47K 
43: R30         Subsequent Events                                   HTML     50K 
44: R31         Significant Accounting Policies (Policies)          HTML    269K 
45: R32         Business Description (Tables)                       HTML     39K 
46: R33         Significant Accounting Policies (Tables)            HTML     94K 
47: R34         Supplemental Cash Flow Information (Tables)         HTML     45K 
48: R35         Consolidated Business Segment Information (Tables)  HTML    190K 
49: R36         Detail of Significant Statement of Financial        HTML    761K 
                Position and Statement of Comprehensive Income                   
                Captions (Tables)                                                
50: R37         Investments in Associates (Tables)                  HTML     61K 
51: R38         Joint Arrangements (Tables)                         HTML     61K 
52: R39         Share of (Loss) / Profit From Associates (Tables)   HTML     49K 
53: R40         Property, Plant and Equipment (Tables)              HTML    703K 
54: R41         Loans (Tables)                                      HTML    163K 
55: R42         Income Tax and Deferred Tax (Tables)                HTML    156K 
56: R43         Evolution of Provisions (Tables)                    HTML     53K 
57: R44         Financial Risk Management (Tables)                  HTML    526K 
58: R45         Assets and Liabilities in Forreign Currency         HTML    160K 
                (Tables)                                                         
59: R46         Common Stock and Dividends (Tables)                 HTML     49K 
60: R47         Balances and Transactions With Related Companies    HTML    329K 
                (Tables)                                                         
61: R48         Contractual Obligations (Tables)                    HTML     60K 
62: R49         BUSINESS DESCRIPTION, Summary (Details)             HTML     42K 
63: R50         BUSINESS DESCRIPTION, Major Shareholders (Details)  HTML     78K 
64: R51         BUSINESS DESCRIPTION, Economic Context (Details)    HTML     78K 
65: R52         SIGNIFICANT ACCOUNTING POLICIES, Consolidation      HTML     81K 
                (Details)                                                        
66: R53         SIGNIFICANT ACCOUNTING POLICIES, Regulatory         HTML     39K 
                Framework (Details)                                              
67: R54         SIGNIFICANT ACCOUNTING POLICIES, Property, Plant    HTML     51K 
                and Equipment (Details)                                          
68: R55         SIGNIFICANT ACCOUNTING POLICIES, Income Tax and     HTML     68K 
                Deferred Income Tax (Details)                                    
69: R56         SIGNIFICANT ACCOUNTING POLICIES, Equity Accounts    HTML     41K 
                (Details)                                                        
70: R57         SIGNIFICANT ACCOUNTING POLICIES, Basic and Diluted  HTML     48K 
                Earnings Per Share (Details)                                     
71: R58         Critical Accounting Estimates and Judgements        HTML     50K 
                (Details)                                                        
72: R59         Supplemental Cash Flow Information (Details)        HTML     41K 
73: R60         Consolidated Business Segment Information           HTML     98K 
                (Details)                                                        
74: R61         DETAIL OF SIGNIFICANT STATEMENT OF FINANCIAL        HTML     80K 
                POSITION AND STATEMENT OF COMPREHENSIVE INCOME                   
                CAPTIONS, Other Receivables (Details)                            
75: R62         DETAIL OF SIGNIFICANT STATEMENT OF FINANCIAL        HTML     72K 
                POSITION AND STATEMENT OF COMPREHENSIVE INCOME                   
                CAPTIONS, Trade Receivables (Details)                            
76: R63         DETAIL OF SIGNIFICANT STATEMENT OF FINANCIAL        HTML     50K 
                POSITION AND STATEMENT OF COMPREHENSIVE INCOME                   
                CAPTIONS, Cash and Cash Equivalents (Details)                    
77: R64         DETAIL OF SIGNIFICANT STATEMENT OF FINANCIAL        HTML     56K 
                POSITION AND STATEMENT OF COMPREHENSIVE INCOME                   
                CAPTIONS, Contract Liabilities (Details)                         
78: R65         DETAIL OF SIGNIFICANT STATEMENT OF FINANCIAL        HTML     45K 
                POSITION AND STATEMENT OF COMPREHENSIVE INCOME                   
                CAPTIONS, Other Payables (Details)                               
79: R66         DETAIL OF SIGNIFICANT STATEMENT OF FINANCIAL        HTML     59K 
                POSITION AND STATEMENT OF COMPREHENSIVE INCOME                   
                CAPTIONS, Taxes Payables (Details)                               
80: R67         DETAIL OF SIGNIFICANT STATEMENT OF FINANCIAL        HTML     47K 
                POSITION AND STATEMENT OF COMPREHENSIVE INCOME                   
                CAPTIONS, Trade Payables (Details)                               
81: R68         DETAIL OF SIGNIFICANT STATEMENT OF FINANCIAL        HTML     48K 
                POSITION AND STATEMENT OF COMPREHENSIVE INCOME                   
                CAPTIONS, Revenues (Details)                                     
82: R69         DETAIL OF SIGNIFICANT STATEMENT OF FINANCIAL        HTML     79K 
                POSITION AND STATEMENT OF COMPREHENSIVE INCOME                   
                CAPTIONS, Disaggregation of Revenues by                          
                Geographical Market (Details)                                    
83: R70         DETAIL OF SIGNIFICANT STATEMENT OF FINANCIAL        HTML     75K 
                POSITION AND STATEMENT OF COMPREHENSIVE INCOME                   
                CAPTIONS, Disaggregation of Revenues by Business                 
                Segment (Details)                                                
84: R71         DETAIL OF SIGNIFICANT STATEMENT OF FINANCIAL        HTML     47K 
                POSITION AND STATEMENT OF COMPREHENSIVE INCOME                   
                CAPTIONS, Cost of Sales (Details)                                
85: R72         DETAIL OF SIGNIFICANT STATEMENT OF FINANCIAL        HTML    167K 
                POSITION AND STATEMENT OF COMPREHENSIVE INCOME                   
                CAPTIONS, Expenses by Nature (Details)                           
86: R73         DETAIL OF SIGNIFICANT STATEMENT OF FINANCIAL        HTML     72K 
                POSITION AND STATEMENT OF COMPREHENSIVE INCOME                   
                CAPTIONS, Net Financial Results (Details)                        
87: R74         DETAIL OF SIGNIFICANT STATEMENT OF FINANCIAL        HTML     48K 
                POSITION AND STATEMENT OF COMPREHENSIVE INCOME                   
                CAPTIONS, Other Operating Results, Net (Details)                 
88: R75         DETAIL OF SIGNIFICANT STATEMENT OF FINANCIAL        HTML     57K 
                POSITION AND STATEMENT OF COMPREHENSIVE INCOME                   
                CAPTIONS, Other Financial Assets at Amortized Cost               
                (Details)                                                        
89: R76         DETAIL OF SIGNIFICANT STATEMENT OF FINANCIAL        HTML     51K 
                POSITION AND STATEMENT OF COMPREHENSIVE INCOME                   
                CAPTIONS, Other Financial Assets at Fair Value                   
                (Details)                                                        
90: R77         DETAIL OF SIGNIFICANT STATEMENT OF FINANCIAL        HTML     46K 
                POSITION AND STATEMENT OF COMPREHENSIVE INCOME                   
                CAPTIONS, Payroll and Social Security Taxes                      
                Payable (Details)                                                
91: R78         Investments in Associates (Details)                 HTML     51K 
92: R79         Joint Arrangements (Details)                        HTML     79K 
93: R80         Share of (Loss) / Profit From Associates (Details)  HTML     47K 
94: R81         PROPERTY, PLANT AND EQUIPMENT, Summary (Details)    HTML    266K 
95: R82         PROPERTY, PLANT AND EQUIPMENT, Composition of Net   HTML     45K 
                Value of Property, Plant and Equipment (Details)                 
96: R83         PROPERTY, PLANT AND EQUIPMENT, Right-of-use Assets  HTML     56K 
                (Details)                                                        
97: R84         LOANS, Short-term and Long-term Loans (Details)     HTML     61K 
98: R85         LOANS, Activity of Loans (Details)                  HTML     86K 
99: R86         LOANS, Maturities of Current and Non-current Loans  HTML     79K 
                (Details)                                                        
100: R87         LOANS, Maturities of Finance Leases and Future      HTML     52K  
                Minimum Lease Payments (Details)                                 
101: R88         LOANS, 2018 Notes (Details)                         HTML     74K  
102: R89         LOANS, Other Financial Liabilities (Details)        HTML     47K  
103: R90         LOANS, Bank Loans (Details)                         HTML     49K  
104: R91         LOANS, Financial leasing and Covenants (Details)    HTML     55K  
105: R92         INCOME TAX AND DEFERRED TAX, Summary (Details)      HTML     80K  
106: R93         INCOME TAX AND DEFERRED TAX, Income Tax             HTML     46K  
                (Expense)/Gain (Details)                                         
107: R94         INCOME TAX AND DEFERRED TAX, Analysis of Deferred   HTML     48K  
                Tax Assets and Liabilities (Details)                             
108: R95         INCOME TAX AND DEFERRED TAX, Component of Net       HTML    100K  
                Deferred Tax Assets and Liabilities (Details)                    
109: R96         INCOME TAX AND DEFERRED TAX, Effective Income Tax   HTML     62K  
                Rate Reconciliation (Details)                                    
110: R97         Evolution of Provisions (Details)                   HTML     55K  
111: R98         FINANCIAL RISK MANAGEMENT, Foreign Exchange Risk    HTML     55K  
                (Details)                                                        
112: R99         FINANCIAL RISK MANAGEMENT, Interest Rate Risk       HTML     56K  
                (Details)                                                        
113: R100        FINANCIAL RISK MANAGEMENT, Commodity Price Risk     HTML     44K  
                (Details)                                                        
114: R101        FINANCIAL RISK MANAGEMENT, Credit Risk, Provision   HTML     56K  
                for Losses (Details)                                             
115: R102        FINANCIAL RISK MANAGEMENT, Credit Risk, Trade and   HTML    113K  
                Other Receivables (Details)                                      
116: R103        FINANCIAL RISK MANAGEMENT, Credit Risk, Cash and    HTML    134K  
                Financial Placement Maturities (Details)                         
117: R104        FINANCIAL RISK MANAGEMENT, Liquidity Risk           HTML    142K  
                (Details)                                                        
118: R105        FINANCIAL RISK MANAGEMENT, Capital Management Risk  HTML     48K  
                (Details)                                                        
119: R106        FINANCIAL RISK MANAGEMENT, Financial Instrument     HTML    120K  
                Categories (Details)                                             
120: R107        FINANCIAL RISK MANAGEMENT, Fair Value Measurement   HTML     64K  
                Hierarchy and Estimates (Details)                                
121: R108        REGULATORY FRAMEWORK, Regulatory Framework of the   HTML     78K  
                Natural Gas Transportation Segment (Details)                     
122: R109        REGULATORY FRAMEWORK, General Framework for         HTML     77K  
                Non-Regulated Segments (Details)                                 
123: R110        Assets and Liabilities in Forreign Currency         HTML    140K  
                (Details)                                                        
124: R111        COMMON STOCK AND DIVIDENDS, Common Stock Structure  HTML     62K  
                and Shares' Public Offer (Details)                               
125: R112        COMMON STOCK AND DIVIDENDS, Acquisition of          HTML     47K  
                Treasury Shares (Details)                                        
126: R113        COMMON STOCK AND DIVIDENDS, Restrictions on         HTML     41K  
                Distribution of Retained Earnings (Details)                      
127: R114        Legal Claims and Other Matters (Details)            HTML     49K  
128: R115        Balances and Transactions With Related Companies    HTML    221K  
                (Details)                                                        
129: R116        Contractual Obligations (Details)                   HTML     82K  
130: R117        Associates and Joint Arrangements (Details)         HTML     61K  
131: R118        Subsequent Events (Details)                         HTML     51K  
133: XML         IDEA XML File -- Filing Summary                      XML    264K  
136: XML         XBRL Instance -- ef20015365_20f_htm                  XML  11.72M  
132: EXCEL       IDEA Workbook of Financial Report Info              XLSX    372K  
10: EX-101.CAL  XBRL Calculations -- tgs-20231231_cal                XML    351K 
11: EX-101.DEF  XBRL Definitions -- tgs-20231231_def                 XML   1.63M 
12: EX-101.LAB  XBRL Labels -- tgs-20231231_lab                      XML   4.19M 
13: EX-101.PRE  XBRL Presentations -- tgs-20231231_pre               XML   2.30M 
 9: EX-101.SCH  XBRL Schema -- tgs-20231231                          XSD    547K 
134: JSON        XBRL Instance as JSON Data -- MetaLinks              628±   947K  
135: ZIP         XBRL Zipped Folder -- 0001140361-24-021683-xbrl      Zip   2.06M

‘XML’   —   IDEA XML File — Filing Summary

This Document is an IDEA XML File.

                                                                                                                                                                                
<?xml version="1.0" encoding="windows-1252"?>
<FilingSummary>
<Version> 3.24.1.u1 </Version>
<ProcessingTime/>
<ReportFormat> html </ReportFormat>
<ContextCount> 1387 </ContextCount>
<ElementCount> 564 </ElementCount>
<EntityCount> 1 </EntityCount>
<FootnotesReported> true </FootnotesReported>
<SegmentCount> 251 </SegmentCount>
<ScenarioCount> 0 </ScenarioCount>
<TuplesReported> false </TuplesReported>
<UnitCount> 17 </UnitCount>
<MyReports>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R1.htm </HtmlFileName>
<LongName> 000100 - Document - Document and Entity Information </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/DocumentAndEntityInformation </Role>
<ShortName> Document and Entity Information </ShortName>
<MenuCategory> Cover </MenuCategory>
<Position> 1 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R2.htm </HtmlFileName>
<LongName> 010000 - Statement - CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/ConsolidatedStatementsOfComprehensiveIncome </Role>
<ShortName> CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME </ShortName>
<MenuCategory> Statements </MenuCategory>
<Position> 2 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R3.htm </HtmlFileName>
<LongName> 020000 - Statement - CONSOLIDATED STATEMENTS OF FINANCIAL POSITION </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/ConsolidatedStatementsOfFinancialPosition </Role>
<ShortName> CONSOLIDATED STATEMENTS OF FINANCIAL POSITION </ShortName>
<MenuCategory> Statements </MenuCategory>
<Position> 3 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R4.htm </HtmlFileName>
<LongName> 030000 - Statement - CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/ConsolidatedStatementsOfChangesInEquity </Role>
<ShortName> CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY </ShortName>
<MenuCategory> Statements </MenuCategory>
<Position> 4 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R5.htm </HtmlFileName>
<LongName> 030100 - Statement - CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY (Parenthetical) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/ConsolidatedStatementsOfChangesInEquityParenthetical </Role>
<ShortName> CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY (Parenthetical) </ShortName>
<MenuCategory> Statements </MenuCategory>
<Position> 5 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R6.htm </HtmlFileName>
<LongName> 040000 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOWS </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/ConsolidatedStatementsOfCashFlows </Role>
<ShortName> CONSOLIDATED STATEMENTS OF CASH FLOWS </ShortName>
<MenuCategory> Statements </MenuCategory>
<Position> 6 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R7.htm </HtmlFileName>
<LongName> 060100 - Disclosure - BUSINESS DESCRIPTION </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/BusinessDescription </Role>
<ShortName> BUSINESS DESCRIPTION </ShortName>
<MenuCategory> Notes </MenuCategory>
<Position> 7 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R8.htm </HtmlFileName>
<LongName> 060200 - Disclosure - CONSOLIDATED FINANCIAL STATEMENTS </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/ConsolidatedFinancialStatements </Role>
<ShortName> CONSOLIDATED FINANCIAL STATEMENTS </ShortName>
<MenuCategory> Notes </MenuCategory>
<Position> 8 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R9.htm </HtmlFileName>
<LongName> 060300 - Disclosure - BASIS OF PRESENTATION </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/BasisOfPresentation </Role>
<ShortName> BASIS OF PRESENTATION </ShortName>
<MenuCategory> Notes </MenuCategory>
<Position> 9 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R10.htm </HtmlFileName>
<LongName> 060400 - Disclosure - SIGNIFICANT ACCOUNTING POLICIES </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/SignificantAccountingPolicies </Role>
<ShortName> SIGNIFICANT ACCOUNTING POLICIES </ShortName>
<MenuCategory> Notes </MenuCategory>
<Position> 10 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R11.htm </HtmlFileName>
<LongName> 060500 - Disclosure - CRITICAL ACCOUNTING ESTIMATES AND JUDGEMENTS </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/CriticalAccountingEstimatesAndJudgements </Role>
<ShortName> CRITICAL ACCOUNTING ESTIMATES AND JUDGEMENTS </ShortName>
<MenuCategory> Notes </MenuCategory>
<Position> 11 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R12.htm </HtmlFileName>
<LongName> 060600 - Disclosure - SUPPLEMENTAL CASH FLOW INFORMATION </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/SupplementalCashFlowInformation </Role>
<ShortName> SUPPLEMENTAL CASH FLOW INFORMATION </ShortName>
<MenuCategory> Notes </MenuCategory>
<Position> 12 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R13.htm </HtmlFileName>
<LongName> 060700 - Disclosure - CONSOLIDATED BUSINESS SEGMENT INFORMATION </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/ConsolidatedBusinessSegmentInformation </Role>
<ShortName> CONSOLIDATED BUSINESS SEGMENT INFORMATION </ShortName>
<MenuCategory> Notes </MenuCategory>
<Position> 13 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R14.htm </HtmlFileName>
<LongName> 060800 - Disclosure - DETAIL OF SIGNIFICANT STATEMENT OF FINANCIAL POSITION AND STATEMENT OF COMPREHENSIVE INCOME CAPTIONS </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/DetailOfSignificantStatementOfFinancialPositionAndStatementOfComprehensiveIncomeCaptions </Role>
<ShortName> DETAIL OF SIGNIFICANT STATEMENT OF FINANCIAL POSITION AND STATEMENT OF COMPREHENSIVE INCOME CAPTIONS </ShortName>
<MenuCategory> Notes </MenuCategory>
<Position> 14 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R15.htm </HtmlFileName>
<LongName> 060900 - Disclosure - INVESTMENTS IN ASSOCIATES </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/InvestmentsInAssociates </Role>
<ShortName> INVESTMENTS IN ASSOCIATES </ShortName>
<MenuCategory> Notes </MenuCategory>
<Position> 15 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R16.htm </HtmlFileName>
<LongName> 061000 - Disclosure - JOINT ARRANGEMENTS </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/JointArrangements </Role>
<ShortName> JOINT ARRANGEMENTS </ShortName>
<MenuCategory> Notes </MenuCategory>
<Position> 16 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R17.htm </HtmlFileName>
<LongName> 061100 - Disclosure - SHARE OF (LOSS) / PROFIT FROM ASSOCIATES </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/ShareOfLossProfitFromAssociates </Role>
<ShortName> SHARE OF (LOSS) / PROFIT FROM ASSOCIATES </ShortName>
<MenuCategory> Notes </MenuCategory>
<Position> 17 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R18.htm </HtmlFileName>
<LongName> 061200 - Disclosure - PROPERTY, PLANT AND EQUIPMENT </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/PropertyPlantAndEquipment </Role>
<ShortName> PROPERTY, PLANT AND EQUIPMENT </ShortName>
<MenuCategory> Notes </MenuCategory>
<Position> 18 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R19.htm </HtmlFileName>
<LongName> 061300 - Disclosure - LOANS </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/Loans </Role>
<ShortName> LOANS </ShortName>
<MenuCategory> Notes </MenuCategory>
<Position> 19 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R20.htm </HtmlFileName>
<LongName> 061400 - Disclosure - INCOME TAX AND DEFERRED TAX </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/IncomeTaxAndDeferredTax </Role>
<ShortName> INCOME TAX AND DEFERRED TAX </ShortName>
<MenuCategory> Notes </MenuCategory>
<Position> 20 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R21.htm </HtmlFileName>
<LongName> 061500 - Disclosure - EVOLUTION OF PROVISIONS </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/EvolutionOfProvisions </Role>
<ShortName> EVOLUTION OF PROVISIONS </ShortName>
<MenuCategory> Notes </MenuCategory>
<Position> 21 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R22.htm </HtmlFileName>
<LongName> 061600 - Disclosure - FINANCIAL RISK MANAGEMENT </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/FinancialRiskManagement </Role>
<ShortName> FINANCIAL RISK MANAGEMENT </ShortName>
<MenuCategory> Notes </MenuCategory>
<Position> 22 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R23.htm </HtmlFileName>
<LongName> 061700 - Disclosure - REGULATORY FRAMEWORK </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/RegulatoryFramework </Role>
<ShortName> REGULATORY FRAMEWORK </ShortName>
<MenuCategory> Notes </MenuCategory>
<Position> 23 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R24.htm </HtmlFileName>
<LongName> 061800 - Disclosure - ASSETS AND LIABILITIES IN FORREIGN CURRENCY </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/AssetsAndLiabilitiesInForreignCurrency </Role>
<ShortName> ASSETS AND LIABILITIES IN FORREIGN CURRENCY </ShortName>
<MenuCategory> Notes </MenuCategory>
<Position> 24 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R25.htm </HtmlFileName>
<LongName> 061900 - Disclosure - COMMON STOCK AND DIVIDENDS </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/CommonStockAndDividends </Role>
<ShortName> COMMON STOCK AND DIVIDENDS </ShortName>
<MenuCategory> Notes </MenuCategory>
<Position> 25 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R26.htm </HtmlFileName>
<LongName> 062000 - Disclosure - LEGAL CLAIMS AND OTHER MATTERS </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/LegalClaimsAndOtherMatters </Role>
<ShortName> LEGAL CLAIMS AND OTHER MATTERS </ShortName>
<MenuCategory> Notes </MenuCategory>
<Position> 26 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R27.htm </HtmlFileName>
<LongName> 062100 - Disclosure - BALANCES AND TRANSACTIONS WITH RELATED COMPANIES </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/BalancesAndTransactionsWithRelatedCompanies </Role>
<ShortName> BALANCES AND TRANSACTIONS WITH RELATED COMPANIES </ShortName>
<MenuCategory> Notes </MenuCategory>
<Position> 27 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R28.htm </HtmlFileName>
<LongName> 062200 - Disclosure - CONTRACTUAL OBLIGATIONS </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/ContractualObligations </Role>
<ShortName> CONTRACTUAL OBLIGATIONS </ShortName>
<MenuCategory> Notes </MenuCategory>
<Position> 28 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R29.htm </HtmlFileName>
<LongName> 062300 - Disclosure - ASSOCIATES AND JOINT ARRANGEMENTS </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/AssociatesAndJointArrangements </Role>
<ShortName> ASSOCIATES AND JOINT ARRANGEMENTS </ShortName>
<MenuCategory> Notes </MenuCategory>
<Position> 29 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R30.htm </HtmlFileName>
<LongName> 062400 - Disclosure - SUBSEQUENT EVENTS </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/SubsequentEvents </Role>
<ShortName> SUBSEQUENT EVENTS </ShortName>
<MenuCategory> Notes </MenuCategory>
<Position> 30 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R31.htm </HtmlFileName>
<LongName> 070400 - Disclosure - SIGNIFICANT ACCOUNTING POLICIES (Policies) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/SignificantAccountingPoliciesPolicies </Role>
<ShortName> SIGNIFICANT ACCOUNTING POLICIES (Policies) </ShortName>
<MenuCategory> Policies </MenuCategory>
<Position> 31 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R32.htm </HtmlFileName>
<LongName> 080100 - Disclosure - BUSINESS DESCRIPTION (Tables) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/BusinessDescriptionTables </Role>
<ShortName> BUSINESS DESCRIPTION (Tables) </ShortName>
<MenuCategory> Tables </MenuCategory>
<ParentRole> http://tgs.com.ar./role/BusinessDescription </ParentRole>
<Position> 32 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R33.htm </HtmlFileName>
<LongName> 080400 - Disclosure - SIGNIFICANT ACCOUNTING POLICIES (Tables) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/SignificantAccountingPoliciesTables </Role>
<ShortName> SIGNIFICANT ACCOUNTING POLICIES (Tables) </ShortName>
<MenuCategory> Tables </MenuCategory>
<ParentRole> http://tgs.com.ar./role/SignificantAccountingPolicies </ParentRole>
<Position> 33 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R34.htm </HtmlFileName>
<LongName> 080600 - Disclosure - SUPPLEMENTAL CASH FLOW INFORMATION (Tables) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/SupplementalCashFlowInformationTables </Role>
<ShortName> SUPPLEMENTAL CASH FLOW INFORMATION (Tables) </ShortName>
<MenuCategory> Tables </MenuCategory>
<ParentRole> http://tgs.com.ar./role/SupplementalCashFlowInformation </ParentRole>
<Position> 34 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R35.htm </HtmlFileName>
<LongName> 080700 - Disclosure - CONSOLIDATED BUSINESS SEGMENT INFORMATION (Tables) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/ConsolidatedBusinessSegmentInformationTables </Role>
<ShortName> CONSOLIDATED BUSINESS SEGMENT INFORMATION (Tables) </ShortName>
<MenuCategory> Tables </MenuCategory>
<ParentRole> http://tgs.com.ar./role/ConsolidatedBusinessSegmentInformation </ParentRole>
<Position> 35 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R36.htm </HtmlFileName>
<LongName> 080800 - Disclosure - DETAIL OF SIGNIFICANT STATEMENT OF FINANCIAL POSITION AND STATEMENT OF COMPREHENSIVE INCOME CAPTIONS (Tables) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/DetailOfSignificantStatementOfFinancialPositionAndStatementOfComprehensiveIncomeCaptionsTables </Role>
<ShortName> DETAIL OF SIGNIFICANT STATEMENT OF FINANCIAL POSITION AND STATEMENT OF COMPREHENSIVE INCOME CAPTIONS (Tables) </ShortName>
<MenuCategory> Tables </MenuCategory>
<ParentRole> http://tgs.com.ar./role/DetailOfSignificantStatementOfFinancialPositionAndStatementOfComprehensiveIncomeCaptions </ParentRole>
<Position> 36 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R37.htm </HtmlFileName>
<LongName> 080900 - Disclosure - INVESTMENTS IN ASSOCIATES (Tables) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/InvestmentsInAssociatesTables </Role>
<ShortName> INVESTMENTS IN ASSOCIATES (Tables) </ShortName>
<MenuCategory> Tables </MenuCategory>
<ParentRole> http://tgs.com.ar./role/InvestmentsInAssociates </ParentRole>
<Position> 37 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R38.htm </HtmlFileName>
<LongName> 081000 - Disclosure - JOINT ARRANGEMENTS (Tables) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/JointArrangementsTables </Role>
<ShortName> JOINT ARRANGEMENTS (Tables) </ShortName>
<MenuCategory> Tables </MenuCategory>
<ParentRole> http://tgs.com.ar./role/JointArrangements </ParentRole>
<Position> 38 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R39.htm </HtmlFileName>
<LongName> 081100 - Disclosure - SHARE OF (LOSS) / PROFIT FROM ASSOCIATES (Tables) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/ShareOfLossProfitFromAssociatesTables </Role>
<ShortName> SHARE OF (LOSS) / PROFIT FROM ASSOCIATES (Tables) </ShortName>
<MenuCategory> Tables </MenuCategory>
<ParentRole> http://tgs.com.ar./role/ShareOfLossProfitFromAssociates </ParentRole>
<Position> 39 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R40.htm </HtmlFileName>
<LongName> 081200 - Disclosure - PROPERTY, PLANT AND EQUIPMENT (Tables) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/PropertyPlantAndEquipmentTables </Role>
<ShortName> PROPERTY, PLANT AND EQUIPMENT (Tables) </ShortName>
<MenuCategory> Tables </MenuCategory>
<ParentRole> http://tgs.com.ar./role/PropertyPlantAndEquipment </ParentRole>
<Position> 40 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R41.htm </HtmlFileName>
<LongName> 081300 - Disclosure - LOANS (Tables) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/LoansTables </Role>
<ShortName> LOANS (Tables) </ShortName>
<MenuCategory> Tables </MenuCategory>
<ParentRole> http://tgs.com.ar./role/Loans </ParentRole>
<Position> 41 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R42.htm </HtmlFileName>
<LongName> 081400 - Disclosure - INCOME TAX AND DEFERRED TAX (Tables) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/IncomeTaxAndDeferredTaxTables </Role>
<ShortName> INCOME TAX AND DEFERRED TAX (Tables) </ShortName>
<MenuCategory> Tables </MenuCategory>
<ParentRole> http://tgs.com.ar./role/IncomeTaxAndDeferredTax </ParentRole>
<Position> 42 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R43.htm </HtmlFileName>
<LongName> 081500 - Disclosure - EVOLUTION OF PROVISIONS (Tables) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/EvolutionOfProvisionsTables </Role>
<ShortName> EVOLUTION OF PROVISIONS (Tables) </ShortName>
<MenuCategory> Tables </MenuCategory>
<ParentRole> http://tgs.com.ar./role/EvolutionOfProvisions </ParentRole>
<Position> 43 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R44.htm </HtmlFileName>
<LongName> 081600 - Disclosure - FINANCIAL RISK MANAGEMENT (Tables) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/FinancialRiskManagementTables </Role>
<ShortName> FINANCIAL RISK MANAGEMENT (Tables) </ShortName>
<MenuCategory> Tables </MenuCategory>
<ParentRole> http://tgs.com.ar./role/FinancialRiskManagement </ParentRole>
<Position> 44 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R45.htm </HtmlFileName>
<LongName> 081800 - Disclosure - ASSETS AND LIABILITIES IN FORREIGN CURRENCY (Tables) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/AssetsAndLiabilitiesInForreignCurrencyTables </Role>
<ShortName> ASSETS AND LIABILITIES IN FORREIGN CURRENCY (Tables) </ShortName>
<MenuCategory> Tables </MenuCategory>
<ParentRole> http://tgs.com.ar./role/AssetsAndLiabilitiesInForreignCurrency </ParentRole>
<Position> 45 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R46.htm </HtmlFileName>
<LongName> 081900 - Disclosure - COMMON STOCK AND DIVIDENDS (Tables) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/CommonStockAndDividendsTables </Role>
<ShortName> COMMON STOCK AND DIVIDENDS (Tables) </ShortName>
<MenuCategory> Tables </MenuCategory>
<ParentRole> http://tgs.com.ar./role/CommonStockAndDividends </ParentRole>
<Position> 46 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R47.htm </HtmlFileName>
<LongName> 082100 - Disclosure - BALANCES AND TRANSACTIONS WITH RELATED COMPANIES (Tables) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/BalancesAndTransactionsWithRelatedCompaniesTables </Role>
<ShortName> BALANCES AND TRANSACTIONS WITH RELATED COMPANIES (Tables) </ShortName>
<MenuCategory> Tables </MenuCategory>
<ParentRole> http://tgs.com.ar./role/BalancesAndTransactionsWithRelatedCompanies </ParentRole>
<Position> 47 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R48.htm </HtmlFileName>
<LongName> 082200 - Disclosure - CONTRACTUAL OBLIGATIONS (Tables) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/ContractualObligationsTables </Role>
<ShortName> CONTRACTUAL OBLIGATIONS (Tables) </ShortName>
<MenuCategory> Tables </MenuCategory>
<ParentRole> http://tgs.com.ar./role/ContractualObligations </ParentRole>
<Position> 48 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R49.htm </HtmlFileName>
<LongName> 090100 - Disclosure - BUSINESS DESCRIPTION, Summary (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/BusinessDescriptionSummaryDetails </Role>
<ShortName> BUSINESS DESCRIPTION, Summary (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<Position> 49 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R50.htm </HtmlFileName>
<LongName> 090102 - Disclosure - BUSINESS DESCRIPTION, Major Shareholders (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/BusinessDescriptionMajorShareholdersDetails </Role>
<ShortName> BUSINESS DESCRIPTION, Major Shareholders (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<Position> 50 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R51.htm </HtmlFileName>
<LongName> 090104 - Disclosure - BUSINESS DESCRIPTION, Economic Context (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/BusinessDescriptionEconomicContextDetails </Role>
<ShortName> BUSINESS DESCRIPTION, Economic Context (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<Position> 51 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R52.htm </HtmlFileName>
<LongName> 090400 - Disclosure - SIGNIFICANT ACCOUNTING POLICIES, Consolidation (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/SignificantAccountingPoliciesConsolidationDetails </Role>
<ShortName> SIGNIFICANT ACCOUNTING POLICIES, Consolidation (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<Position> 52 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R53.htm </HtmlFileName>
<LongName> 090402 - Disclosure - SIGNIFICANT ACCOUNTING POLICIES, Regulatory Framework (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/SignificantAccountingPoliciesRegulatoryFrameworkDetails </Role>
<ShortName> SIGNIFICANT ACCOUNTING POLICIES, Regulatory Framework (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<Position> 53 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R54.htm </HtmlFileName>
<LongName> 090404 - Disclosure - SIGNIFICANT ACCOUNTING POLICIES, Property, Plant and Equipment (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/SignificantAccountingPoliciesPropertyPlantAndEquipmentDetails </Role>
<ShortName> SIGNIFICANT ACCOUNTING POLICIES, Property, Plant and Equipment (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<Position> 54 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R55.htm </HtmlFileName>
<LongName> 090406 - Disclosure - SIGNIFICANT ACCOUNTING POLICIES, Income Tax and Deferred Income Tax (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/SignificantAccountingPoliciesIncomeTaxAndDeferredIncomeTaxDetails </Role>
<ShortName> SIGNIFICANT ACCOUNTING POLICIES, Income Tax and Deferred Income Tax (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<Position> 55 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R56.htm </HtmlFileName>
<LongName> 090408 - Disclosure - SIGNIFICANT ACCOUNTING POLICIES, Equity Accounts (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/SignificantAccountingPoliciesEquityAccountsDetails </Role>
<ShortName> SIGNIFICANT ACCOUNTING POLICIES, Equity Accounts (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<Position> 56 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R57.htm </HtmlFileName>
<LongName> 090410 - Disclosure - SIGNIFICANT ACCOUNTING POLICIES, Basic and Diluted Earnings Per Share (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/SignificantAccountingPoliciesBasicAndDilutedEarningsPerShareDetails </Role>
<ShortName> SIGNIFICANT ACCOUNTING POLICIES, Basic and Diluted Earnings Per Share (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<Position> 57 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R58.htm </HtmlFileName>
<LongName> 090500 - Disclosure - CRITICAL ACCOUNTING ESTIMATES AND JUDGEMENTS (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/CriticalAccountingEstimatesAndJudgementsDetails </Role>
<ShortName> CRITICAL ACCOUNTING ESTIMATES AND JUDGEMENTS (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<ParentRole> http://tgs.com.ar./role/CriticalAccountingEstimatesAndJudgements </ParentRole>
<Position> 58 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R59.htm </HtmlFileName>
<LongName> 090600 - Disclosure - SUPPLEMENTAL CASH FLOW INFORMATION (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/SupplementalCashFlowInformationDetails </Role>
<ShortName> SUPPLEMENTAL CASH FLOW INFORMATION (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<ParentRole> http://tgs.com.ar./role/SupplementalCashFlowInformationTables </ParentRole>
<Position> 59 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R60.htm </HtmlFileName>
<LongName> 090700 - Disclosure - CONSOLIDATED BUSINESS SEGMENT INFORMATION (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/ConsolidatedBusinessSegmentInformationDetails </Role>
<ShortName> CONSOLIDATED BUSINESS SEGMENT INFORMATION (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<ParentRole> http://tgs.com.ar./role/ConsolidatedBusinessSegmentInformationTables </ParentRole>
<Position> 60 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R61.htm </HtmlFileName>
<LongName> 090800 - Disclosure - DETAIL OF SIGNIFICANT STATEMENT OF FINANCIAL POSITION AND STATEMENT OF COMPREHENSIVE INCOME CAPTIONS, Other Receivables (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/DetailOfSignificantStatementOfFinancialPositionAndStatementOfComprehensiveIncomeCaptionsOtherReceivablesDetails </Role>
<ShortName> DETAIL OF SIGNIFICANT STATEMENT OF FINANCIAL POSITION AND STATEMENT OF COMPREHENSIVE INCOME CAPTIONS, Other Receivables (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<ParentRole> http://tgs.com.ar./role/DetailOfSignificantStatementOfFinancialPositionAndStatementOfComprehensiveIncomeCaptionsTables </ParentRole>
<Position> 61 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R62.htm </HtmlFileName>
<LongName> 090802 - Disclosure - DETAIL OF SIGNIFICANT STATEMENT OF FINANCIAL POSITION AND STATEMENT OF COMPREHENSIVE INCOME CAPTIONS, Trade Receivables (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/DetailOfSignificantStatementOfFinancialPositionAndStatementOfComprehensiveIncomeCaptionsTradeReceivablesDetails </Role>
<ShortName> DETAIL OF SIGNIFICANT STATEMENT OF FINANCIAL POSITION AND STATEMENT OF COMPREHENSIVE INCOME CAPTIONS, Trade Receivables (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<ParentRole> http://tgs.com.ar./role/DetailOfSignificantStatementOfFinancialPositionAndStatementOfComprehensiveIncomeCaptionsTables </ParentRole>
<Position> 62 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R63.htm </HtmlFileName>
<LongName> 090804 - Disclosure - DETAIL OF SIGNIFICANT STATEMENT OF FINANCIAL POSITION AND STATEMENT OF COMPREHENSIVE INCOME CAPTIONS, Cash and Cash Equivalents (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/DetailOfSignificantStatementOfFinancialPositionAndStatementOfComprehensiveIncomeCaptionsCashAndCashEquivalentsDetails </Role>
<ShortName> DETAIL OF SIGNIFICANT STATEMENT OF FINANCIAL POSITION AND STATEMENT OF COMPREHENSIVE INCOME CAPTIONS, Cash and Cash Equivalents (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<Position> 63 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R64.htm </HtmlFileName>
<LongName> 090806 - Disclosure - DETAIL OF SIGNIFICANT STATEMENT OF FINANCIAL POSITION AND STATEMENT OF COMPREHENSIVE INCOME CAPTIONS, Contract Liabilities (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/DetailOfSignificantStatementOfFinancialPositionAndStatementOfComprehensiveIncomeCaptionsContractLiabilitiesDetails </Role>
<ShortName> DETAIL OF SIGNIFICANT STATEMENT OF FINANCIAL POSITION AND STATEMENT OF COMPREHENSIVE INCOME CAPTIONS, Contract Liabilities (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<ParentRole> http://tgs.com.ar./role/DetailOfSignificantStatementOfFinancialPositionAndStatementOfComprehensiveIncomeCaptionsTables </ParentRole>
<Position> 64 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R65.htm </HtmlFileName>
<LongName> 090808 - Disclosure - DETAIL OF SIGNIFICANT STATEMENT OF FINANCIAL POSITION AND STATEMENT OF COMPREHENSIVE INCOME CAPTIONS, Other Payables (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/DetailOfSignificantStatementOfFinancialPositionAndStatementOfComprehensiveIncomeCaptionsOtherPayablesDetails </Role>
<ShortName> DETAIL OF SIGNIFICANT STATEMENT OF FINANCIAL POSITION AND STATEMENT OF COMPREHENSIVE INCOME CAPTIONS, Other Payables (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<ParentRole> http://tgs.com.ar./role/DetailOfSignificantStatementOfFinancialPositionAndStatementOfComprehensiveIncomeCaptionsTables </ParentRole>
<Position> 65 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R66.htm </HtmlFileName>
<LongName> 090810 - Disclosure - DETAIL OF SIGNIFICANT STATEMENT OF FINANCIAL POSITION AND STATEMENT OF COMPREHENSIVE INCOME CAPTIONS, Taxes Payables (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/DetailOfSignificantStatementOfFinancialPositionAndStatementOfComprehensiveIncomeCaptionsTaxesPayablesDetails </Role>
<ShortName> DETAIL OF SIGNIFICANT STATEMENT OF FINANCIAL POSITION AND STATEMENT OF COMPREHENSIVE INCOME CAPTIONS, Taxes Payables (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<ParentRole> http://tgs.com.ar./role/DetailOfSignificantStatementOfFinancialPositionAndStatementOfComprehensiveIncomeCaptionsTables </ParentRole>
<Position> 66 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R67.htm </HtmlFileName>
<LongName> 090812 - Disclosure - DETAIL OF SIGNIFICANT STATEMENT OF FINANCIAL POSITION AND STATEMENT OF COMPREHENSIVE INCOME CAPTIONS, Trade Payables (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/DetailOfSignificantStatementOfFinancialPositionAndStatementOfComprehensiveIncomeCaptionsTradePayablesDetails </Role>
<ShortName> DETAIL OF SIGNIFICANT STATEMENT OF FINANCIAL POSITION AND STATEMENT OF COMPREHENSIVE INCOME CAPTIONS, Trade Payables (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<ParentRole> http://tgs.com.ar./role/DetailOfSignificantStatementOfFinancialPositionAndStatementOfComprehensiveIncomeCaptionsTables </ParentRole>
<Position> 67 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R68.htm </HtmlFileName>
<LongName> 090814 - Disclosure - DETAIL OF SIGNIFICANT STATEMENT OF FINANCIAL POSITION AND STATEMENT OF COMPREHENSIVE INCOME CAPTIONS, Revenues (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/DetailOfSignificantStatementOfFinancialPositionAndStatementOfComprehensiveIncomeCaptionsRevenuesDetails </Role>
<ShortName> DETAIL OF SIGNIFICANT STATEMENT OF FINANCIAL POSITION AND STATEMENT OF COMPREHENSIVE INCOME CAPTIONS, Revenues (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<ParentRole> http://tgs.com.ar./role/DetailOfSignificantStatementOfFinancialPositionAndStatementOfComprehensiveIncomeCaptionsTables </ParentRole>
<Position> 68 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R69.htm </HtmlFileName>
<LongName> 090816 - Disclosure - DETAIL OF SIGNIFICANT STATEMENT OF FINANCIAL POSITION AND STATEMENT OF COMPREHENSIVE INCOME CAPTIONS, Disaggregation of Revenues by Geographical Market (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/DetailOfSignificantStatementOfFinancialPositionAndStatementOfComprehensiveIncomeCaptionsDisaggregationOfRevenuesByGeographicalMarketDetails </Role>
<ShortName> DETAIL OF SIGNIFICANT STATEMENT OF FINANCIAL POSITION AND STATEMENT OF COMPREHENSIVE INCOME CAPTIONS, Disaggregation of Revenues by Geographical Market (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<Position> 69 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R70.htm </HtmlFileName>
<LongName> 090818 - Disclosure - DETAIL OF SIGNIFICANT STATEMENT OF FINANCIAL POSITION AND STATEMENT OF COMPREHENSIVE INCOME CAPTIONS, Disaggregation of Revenues by Business Segment (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/DetailOfSignificantStatementOfFinancialPositionAndStatementOfComprehensiveIncomeCaptionsDisaggregationOfRevenuesByBusinessSegmentDetails </Role>
<ShortName> DETAIL OF SIGNIFICANT STATEMENT OF FINANCIAL POSITION AND STATEMENT OF COMPREHENSIVE INCOME CAPTIONS, Disaggregation of Revenues by Business Segment (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<Position> 70 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R71.htm </HtmlFileName>
<LongName> 090820 - Disclosure - DETAIL OF SIGNIFICANT STATEMENT OF FINANCIAL POSITION AND STATEMENT OF COMPREHENSIVE INCOME CAPTIONS, Cost of Sales (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/DetailOfSignificantStatementOfFinancialPositionAndStatementOfComprehensiveIncomeCaptionsCostOfSalesDetails </Role>
<ShortName> DETAIL OF SIGNIFICANT STATEMENT OF FINANCIAL POSITION AND STATEMENT OF COMPREHENSIVE INCOME CAPTIONS, Cost of Sales (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<ParentRole> http://tgs.com.ar./role/DetailOfSignificantStatementOfFinancialPositionAndStatementOfComprehensiveIncomeCaptionsTables </ParentRole>
<Position> 71 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R72.htm </HtmlFileName>
<LongName> 090822 - Disclosure - DETAIL OF SIGNIFICANT STATEMENT OF FINANCIAL POSITION AND STATEMENT OF COMPREHENSIVE INCOME CAPTIONS, Expenses by Nature (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/DetailOfSignificantStatementOfFinancialPositionAndStatementOfComprehensiveIncomeCaptionsExpensesByNatureDetails </Role>
<ShortName> DETAIL OF SIGNIFICANT STATEMENT OF FINANCIAL POSITION AND STATEMENT OF COMPREHENSIVE INCOME CAPTIONS, Expenses by Nature (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<ParentRole> http://tgs.com.ar./role/DetailOfSignificantStatementOfFinancialPositionAndStatementOfComprehensiveIncomeCaptionsTables </ParentRole>
<Position> 72 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R73.htm </HtmlFileName>
<LongName> 090824 - Disclosure - DETAIL OF SIGNIFICANT STATEMENT OF FINANCIAL POSITION AND STATEMENT OF COMPREHENSIVE INCOME CAPTIONS, Net Financial Results (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/DetailOfSignificantStatementOfFinancialPositionAndStatementOfComprehensiveIncomeCaptionsNetFinancialResultsDetails </Role>
<ShortName> DETAIL OF SIGNIFICANT STATEMENT OF FINANCIAL POSITION AND STATEMENT OF COMPREHENSIVE INCOME CAPTIONS, Net Financial Results (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<ParentRole> http://tgs.com.ar./role/DetailOfSignificantStatementOfFinancialPositionAndStatementOfComprehensiveIncomeCaptionsTables </ParentRole>
<Position> 73 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R74.htm </HtmlFileName>
<LongName> 090826 - Disclosure - DETAIL OF SIGNIFICANT STATEMENT OF FINANCIAL POSITION AND STATEMENT OF COMPREHENSIVE INCOME CAPTIONS, Other Operating Results, Net (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/DetailOfSignificantStatementOfFinancialPositionAndStatementOfComprehensiveIncomeCaptionsOtherOperatingResultsNetDetails </Role>
<ShortName> DETAIL OF SIGNIFICANT STATEMENT OF FINANCIAL POSITION AND STATEMENT OF COMPREHENSIVE INCOME CAPTIONS, Other Operating Results, Net (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<Position> 74 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R75.htm </HtmlFileName>
<LongName> 090828 - Disclosure - DETAIL OF SIGNIFICANT STATEMENT OF FINANCIAL POSITION AND STATEMENT OF COMPREHENSIVE INCOME CAPTIONS, Other Financial Assets at Amortized Cost (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/DetailOfSignificantStatementOfFinancialPositionAndStatementOfComprehensiveIncomeCaptionsOtherFinancialAssetsAtAmortizedCostDetails </Role>
<ShortName> DETAIL OF SIGNIFICANT STATEMENT OF FINANCIAL POSITION AND STATEMENT OF COMPREHENSIVE INCOME CAPTIONS, Other Financial Assets at Amortized Cost (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<Position> 75 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R76.htm </HtmlFileName>
<LongName> 090830 - Disclosure - DETAIL OF SIGNIFICANT STATEMENT OF FINANCIAL POSITION AND STATEMENT OF COMPREHENSIVE INCOME CAPTIONS, Other Financial Assets at Fair Value (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/DetailOfSignificantStatementOfFinancialPositionAndStatementOfComprehensiveIncomeCaptionsOtherFinancialAssetsAtFairValueDetails </Role>
<ShortName> DETAIL OF SIGNIFICANT STATEMENT OF FINANCIAL POSITION AND STATEMENT OF COMPREHENSIVE INCOME CAPTIONS, Other Financial Assets at Fair Value (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<Position> 76 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R77.htm </HtmlFileName>
<LongName> 090832 - Disclosure - DETAIL OF SIGNIFICANT STATEMENT OF FINANCIAL POSITION AND STATEMENT OF COMPREHENSIVE INCOME CAPTIONS, Payroll and Social Security Taxes Payable (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/DetailOfSignificantStatementOfFinancialPositionAndStatementOfComprehensiveIncomeCaptionsPayrollAndSocialSecurityTaxesPayableDetails </Role>
<ShortName> DETAIL OF SIGNIFICANT STATEMENT OF FINANCIAL POSITION AND STATEMENT OF COMPREHENSIVE INCOME CAPTIONS, Payroll and Social Security Taxes Payable (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<Position> 77 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R78.htm </HtmlFileName>
<LongName> 090900 - Disclosure - INVESTMENTS IN ASSOCIATES (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/InvestmentsInAssociatesDetails </Role>
<ShortName> INVESTMENTS IN ASSOCIATES (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<ParentRole> http://tgs.com.ar./role/InvestmentsInAssociatesTables </ParentRole>
<Position> 78 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R79.htm </HtmlFileName>
<LongName> 091000 - Disclosure - JOINT ARRANGEMENTS (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/JointArrangementsDetails </Role>
<ShortName> JOINT ARRANGEMENTS (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<ParentRole> http://tgs.com.ar./role/JointArrangementsTables </ParentRole>
<Position> 79 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R80.htm </HtmlFileName>
<LongName> 091100 - Disclosure - SHARE OF (LOSS) / PROFIT FROM ASSOCIATES (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/ShareOfLossProfitFromAssociatesDetails </Role>
<ShortName> SHARE OF (LOSS) / PROFIT FROM ASSOCIATES (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<ParentRole> http://tgs.com.ar./role/ShareOfLossProfitFromAssociatesTables </ParentRole>
<Position> 80 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R81.htm </HtmlFileName>
<LongName> 091200 - Disclosure - PROPERTY, PLANT AND EQUIPMENT, Summary (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/PropertyPlantAndEquipmentSummaryDetails </Role>
<ShortName> PROPERTY, PLANT AND EQUIPMENT, Summary (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<Position> 81 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R82.htm </HtmlFileName>
<LongName> 091202 - Disclosure - PROPERTY, PLANT AND EQUIPMENT, Composition of Net Value of Property, Plant and Equipment (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/PropertyPlantAndEquipmentCompositionOfNetValueOfPropertyPlantAndEquipmentDetails </Role>
<ShortName> PROPERTY, PLANT AND EQUIPMENT, Composition of Net Value of Property, Plant and Equipment (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<Position> 82 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R83.htm </HtmlFileName>
<LongName> 091204 - Disclosure - PROPERTY, PLANT AND EQUIPMENT, Right-of-use Assets (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/PropertyPlantAndEquipmentRightofuseAssetsDetails </Role>
<ShortName> PROPERTY, PLANT AND EQUIPMENT, Right-of-use Assets (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<Position> 83 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R84.htm </HtmlFileName>
<LongName> 091300 - Disclosure - LOANS, Short-term and Long-term Loans (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/LoansShorttermAndLongtermLoansDetails </Role>
<ShortName> LOANS, Short-term and Long-term Loans (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<Position> 84 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R85.htm </HtmlFileName>
<LongName> 091302 - Disclosure - LOANS, Activity of Loans (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/LoansActivityOfLoansDetails </Role>
<ShortName> LOANS, Activity of Loans (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<Position> 85 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R86.htm </HtmlFileName>
<LongName> 091304 - Disclosure - LOANS, Maturities of Current and Non-current Loans (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/LoansMaturitiesOfCurrentAndNoncurrentLoansDetails </Role>
<ShortName> LOANS, Maturities of Current and Non-current Loans (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<Position> 86 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R87.htm </HtmlFileName>
<LongName> 091306 - Disclosure - LOANS, Maturities of Finance Leases and Future Minimum Lease Payments (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/LoansMaturitiesOfFinanceLeasesAndFutureMinimumLeasePaymentsDetails </Role>
<ShortName> LOANS, Maturities of Finance Leases and Future Minimum Lease Payments (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<Position> 87 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R88.htm </HtmlFileName>
<LongName> 091308 - Disclosure - LOANS, 2018 Notes (Details) </LongName>
<ReportType> Notes </ReportType>
<Role> http://tgs.com.ar./role/Loans2018NotesDetails </Role>
<ShortName> LOANS, 2018 Notes (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<Position> 88 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R89.htm </HtmlFileName>
<LongName> 091310 - Disclosure - LOANS, Other Financial Liabilities (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/LoansOtherFinancialLiabilitiesDetails </Role>
<ShortName> LOANS, Other Financial Liabilities (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<Position> 89 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R90.htm </HtmlFileName>
<LongName> 091312 - Disclosure - LOANS, Bank Loans (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/LoansBankLoansDetails </Role>
<ShortName> LOANS, Bank Loans (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<Position> 90 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R91.htm </HtmlFileName>
<LongName> 091314 - Disclosure - LOANS, Financial leasing and Covenants (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/LoansFinancialLeasingAndCovenantsDetails </Role>
<ShortName> LOANS, Financial leasing and Covenants (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<Position> 91 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R92.htm </HtmlFileName>
<LongName> 091400 - Disclosure - INCOME TAX AND DEFERRED TAX, Summary (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/IncomeTaxAndDeferredTaxSummaryDetails </Role>
<ShortName> INCOME TAX AND DEFERRED TAX, Summary (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<Position> 92 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R93.htm </HtmlFileName>
<LongName> 091402 - Disclosure - INCOME TAX AND DEFERRED TAX, Income Tax (Expense)/Gain (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/IncomeTaxAndDeferredTaxIncomeTaxExpenseGainDetails </Role>
<ShortName> INCOME TAX AND DEFERRED TAX, Income Tax (Expense)/Gain (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<Position> 93 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R94.htm </HtmlFileName>
<LongName> 091404 - Disclosure - INCOME TAX AND DEFERRED TAX, Analysis of Deferred Tax Assets and Liabilities (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/IncomeTaxAndDeferredTaxAnalysisOfDeferredTaxAssetsAndLiabilitiesDetails </Role>
<ShortName> INCOME TAX AND DEFERRED TAX, Analysis of Deferred Tax Assets and Liabilities (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<Position> 94 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R95.htm </HtmlFileName>
<LongName> 091406 - Disclosure - INCOME TAX AND DEFERRED TAX, Component of Net Deferred Tax Assets and Liabilities (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/IncomeTaxAndDeferredTaxComponentOfNetDeferredTaxAssetsAndLiabilitiesDetails </Role>
<ShortName> INCOME TAX AND DEFERRED TAX, Component of Net Deferred Tax Assets and Liabilities (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<Position> 95 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R96.htm </HtmlFileName>
<LongName> 091408 - Disclosure - INCOME TAX AND DEFERRED TAX, Effective Income Tax Rate Reconciliation (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/IncomeTaxAndDeferredTaxEffectiveIncomeTaxRateReconciliationDetails </Role>
<ShortName> INCOME TAX AND DEFERRED TAX, Effective Income Tax Rate Reconciliation (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<Position> 96 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R97.htm </HtmlFileName>
<LongName> 091500 - Disclosure - EVOLUTION OF PROVISIONS (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/EvolutionOfProvisionsDetails </Role>
<ShortName> EVOLUTION OF PROVISIONS (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<ParentRole> http://tgs.com.ar./role/EvolutionOfProvisionsTables </ParentRole>
<Position> 97 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R98.htm </HtmlFileName>
<LongName> 091600 - Disclosure - FINANCIAL RISK MANAGEMENT, Foreign Exchange Risk (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/FinancialRiskManagementForeignExchangeRiskDetails </Role>
<ShortName> FINANCIAL RISK MANAGEMENT, Foreign Exchange Risk (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<Position> 98 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R99.htm </HtmlFileName>
<LongName> 091602 - Disclosure - FINANCIAL RISK MANAGEMENT, Interest Rate Risk (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/FinancialRiskManagementInterestRateRiskDetails </Role>
<ShortName> FINANCIAL RISK MANAGEMENT, Interest Rate Risk (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<Position> 99 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R100.htm </HtmlFileName>
<LongName> 091604 - Disclosure - FINANCIAL RISK MANAGEMENT, Commodity Price Risk (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/FinancialRiskManagementCommodityPriceRiskDetails </Role>
<ShortName> FINANCIAL RISK MANAGEMENT, Commodity Price Risk (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<Position> 100 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R101.htm </HtmlFileName>
<LongName> 091606 - Disclosure - FINANCIAL RISK MANAGEMENT, Credit Risk, Provision for Losses (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/FinancialRiskManagementCreditRiskProvisionForLossesDetails </Role>
<ShortName> FINANCIAL RISK MANAGEMENT, Credit Risk, Provision for Losses (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<Position> 101 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R102.htm </HtmlFileName>
<LongName> 091608 - Disclosure - FINANCIAL RISK MANAGEMENT, Credit Risk, Trade and Other Receivables (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/FinancialRiskManagementCreditRiskTradeAndOtherReceivablesDetails </Role>
<ShortName> FINANCIAL RISK MANAGEMENT, Credit Risk, Trade and Other Receivables (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<Position> 102 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R103.htm </HtmlFileName>
<LongName> 091610 - Disclosure - FINANCIAL RISK MANAGEMENT, Credit Risk, Cash and Financial Placement Maturities (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/FinancialRiskManagementCreditRiskCashAndFinancialPlacementMaturitiesDetails </Role>
<ShortName> FINANCIAL RISK MANAGEMENT, Credit Risk, Cash and Financial Placement Maturities (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<Position> 103 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R104.htm </HtmlFileName>
<LongName> 091612 - Disclosure - FINANCIAL RISK MANAGEMENT, Liquidity Risk (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/FinancialRiskManagementLiquidityRiskDetails </Role>
<ShortName> FINANCIAL RISK MANAGEMENT, Liquidity Risk (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<Position> 104 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R105.htm </HtmlFileName>
<LongName> 091614 - Disclosure - FINANCIAL RISK MANAGEMENT, Capital Management Risk (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/FinancialRiskManagementCapitalManagementRiskDetails </Role>
<ShortName> FINANCIAL RISK MANAGEMENT, Capital Management Risk (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<Position> 105 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R106.htm </HtmlFileName>
<LongName> 091616 - Disclosure - FINANCIAL RISK MANAGEMENT, Financial Instrument Categories (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/FinancialRiskManagementFinancialInstrumentCategoriesDetails </Role>
<ShortName> FINANCIAL RISK MANAGEMENT, Financial Instrument Categories (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<Position> 106 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R107.htm </HtmlFileName>
<LongName> 091618 - Disclosure - FINANCIAL RISK MANAGEMENT, Fair Value Measurement Hierarchy and Estimates (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/FinancialRiskManagementFairValueMeasurementHierarchyAndEstimatesDetails </Role>
<ShortName> FINANCIAL RISK MANAGEMENT, Fair Value Measurement Hierarchy and Estimates (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<Position> 107 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R108.htm </HtmlFileName>
<LongName> 091700 - Disclosure - REGULATORY FRAMEWORK, Regulatory Framework of the Natural Gas Transportation Segment (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/RegulatoryFrameworkRegulatoryFrameworkOfNaturalGasTransportationSegmentDetails </Role>
<ShortName> REGULATORY FRAMEWORK, Regulatory Framework of the Natural Gas Transportation Segment (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<Position> 108 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R109.htm </HtmlFileName>
<LongName> 091702 - Disclosure - REGULATORY FRAMEWORK, General Framework for Non-Regulated Segments (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/RegulatoryFrameworkGeneralFrameworkForNonregulatedSegmentsDetails </Role>
<ShortName> REGULATORY FRAMEWORK, General Framework for Non-Regulated Segments (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<Position> 109 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R110.htm </HtmlFileName>
<LongName> 091800 - Disclosure - ASSETS AND LIABILITIES IN FORREIGN CURRENCY (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/AssetsAndLiabilitiesInForreignCurrencyDetails </Role>
<ShortName> ASSETS AND LIABILITIES IN FORREIGN CURRENCY (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<ParentRole> http://tgs.com.ar./role/AssetsAndLiabilitiesInForreignCurrencyTables </ParentRole>
<Position> 110 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R111.htm </HtmlFileName>
<LongName> 091900 - Disclosure - COMMON STOCK AND DIVIDENDS, Common Stock Structure and Shares' Public Offer (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/CommonStockAndDividendsCommonStockStructureAndSharesPublicOfferDetails </Role>
<ShortName> COMMON STOCK AND DIVIDENDS, Common Stock Structure and Shares' Public Offer (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<Position> 111 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R112.htm </HtmlFileName>
<LongName> 091902 - Disclosure - COMMON STOCK AND DIVIDENDS, Acquisition of Treasury Shares (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/CommonStockAndDividendsAcquisitionOfTreasurySharesDetails </Role>
<ShortName> COMMON STOCK AND DIVIDENDS, Acquisition of Treasury Shares (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<Position> 112 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R113.htm </HtmlFileName>
<LongName> 091904 - Disclosure - COMMON STOCK AND DIVIDENDS, Restrictions on Distribution of Retained Earnings (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/CommonStockAndDividendsRestrictionsOnDistributionOfRetainedEarningsDetails </Role>
<ShortName> COMMON STOCK AND DIVIDENDS, Restrictions on Distribution of Retained Earnings (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<Position> 113 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R114.htm </HtmlFileName>
<LongName> 092000 - Disclosure - LEGAL CLAIMS AND OTHER MATTERS (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/LegalClaimsAndOtherMattersDetails </Role>
<ShortName> LEGAL CLAIMS AND OTHER MATTERS (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<ParentRole> http://tgs.com.ar./role/LegalClaimsAndOtherMatters </ParentRole>
<Position> 114 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R115.htm </HtmlFileName>
<LongName> 092100 - Disclosure - BALANCES AND TRANSACTIONS WITH RELATED COMPANIES (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/BalancesAndTransactionsWithRelatedCompaniesDetails </Role>
<ShortName> BALANCES AND TRANSACTIONS WITH RELATED COMPANIES (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<ParentRole> http://tgs.com.ar./role/BalancesAndTransactionsWithRelatedCompaniesTables </ParentRole>
<Position> 115 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R116.htm </HtmlFileName>
<LongName> 092200 - Disclosure - CONTRACTUAL OBLIGATIONS (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/ContractualObligationsDetails </Role>
<ShortName> CONTRACTUAL OBLIGATIONS (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<ParentRole> http://tgs.com.ar./role/ContractualObligationsTables </ParentRole>
<Position> 116 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R117.htm </HtmlFileName>
<LongName> 092300 - Disclosure - ASSOCIATES AND JOINT ARRANGEMENTS (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/AssociatesAndJointArrangementsDetails </Role>
<ShortName> ASSOCIATES AND JOINT ARRANGEMENTS (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<ParentRole> http://tgs.com.ar./role/AssociatesAndJointArrangements </ParentRole>
<Position> 117 </Position>
</Report>
<Report instance="ef20015365_20f.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R118.htm </HtmlFileName>
<LongName> 092400 - Disclosure - SUBSEQUENT EVENTS (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://tgs.com.ar./role/SubsequentEventsDetails </Role>
<ShortName> SUBSEQUENT EVENTS (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<ParentRole> http://tgs.com.ar./role/SubsequentEvents </ParentRole>
<Position> 118 </Position>
</Report>
<Report>
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<LongName> All Reports </LongName>
<ReportType> Book </ReportType>
<ShortName> All Reports </ShortName>
</Report>
</MyReports>
<Logs>
<Log type="Warning"> [ix-0514-Hidden-Fact-Eligible-For-Transform] WARN: 7 fact(s) appearing in ix:hidden were eligible for transformation: dei:CurrentFiscalYearEndDate, dei:EntityFileNumber, tgs:ExtendedValidityPeriodOfPrecautionaryMeasure, tgs:InvestmentPlanPeriod - ef20015365_20f.htm 11 </Log>
</Logs>
<InputFiles>
<File doctype="20-F" isDefinitelyFs="true" isIfrs="true" isUsgaap="true" original="ef20015365_20f.htm"> ef20015365_20f.htm </File>
<File> tgs-20231231.xsd </File>
<File> tgs-20231231_cal.xml </File>
<File> tgs-20231231_def.xml </File>
<File> tgs-20231231_lab.xml </File>
<File> tgs-20231231_pre.xml </File>
</InputFiles>
<SupplementalFiles>
<File> image0.jpg </File>
<File> image00001.jpg </File>
<File> image00002.jpg </File>
<File> image00015.jpg </File>
<File> image00016.jpg </File>
<File> image00017.jpg </File>
<File> image00018.jpg </File>
<File> image00019.jpg </File>
<File> image00020.jpg </File>
<File> image00021.jpg </File>
<File> image00022.jpg </File>
<File> image00023.jpg </File>
<File> image00025.jpg </File>
<File> image00026.jpg </File>
<File> image00027.jpg </File>
<File> image00028.jpg </File>
<File> image00029.jpg </File>
</SupplementalFiles>
<BaseTaxonomies>
<BaseTaxonomy items="55"> http://xbrl.sec.gov/dei/2023 </BaseTaxonomy>
<BaseTaxonomy items="2766"> https://xbrl.ifrs.org/taxonomy/2023-03-23/ifrs-full </BaseTaxonomy>
</BaseTaxonomies>
<HasPresentationLinkbase> true </HasPresentationLinkbase>
<HasCalculationLinkbase> true </HasCalculationLinkbase>
</FilingSummary>

8 Previous Filings that this Filing References

  As Of               Filer                 Filing    For·On·As Docs:Size             Issuer                      Filing Agent

 4/25/23  Gas Transporter of the South Inc. 20-F       12/31/22  135:35M                                    Broadridge Fin’l So… Inc
 4/08/21  Gas Transporter of the South Inc. 6-K         4/08/21    1:31K
 4/25/19  Gas Transporter of the South Inc. 20-F       12/31/18  130:34M                                    Broadridge Fin’l So… Inc
 4/25/17  Gas Transporter of the South Inc. 20-F       12/31/16    7:6.9M                                   Blueprint/FA
 4/24/13  Gas Transporter of the South Inc. 20-F       12/31/12    2:24M
 6/17/11  Gas Transporter of the South Inc. 20-F       12/31/10    2:23M
 6/27/06  Gas Transporter of the South Inc. 20-F       12/31/05    2:26M
 6/30/04  Gas Transporter of the South Inc. 20-F       12/31/03    2:8.9M
↑Top
Filing Submission 0001140361-24-021683   –   Alternative Formats (Word / Rich Text, HTML, Plain Text, et al.)
Copyright © 2024 Fran Finnegan & Company LLC – All Rights Reserved.
About — Privacy — Redactions — Help — Tue., May 7, 6:36:53.2pm ET