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BALANCES AND TRANSACTIONS WITH RELATED COMPANIES (Details)
$ in Thousands, $ in Millions
 12 Months Ended
Dec. 31, 2024
ARS ($)
Dec. 31, 2023
ARS ($)
Dec. 31, 2022
ARS ($)
Dec. 31, 2024
USD ($)
Technical, financial and operational assistance agreement [abstract]        
Compensation for key management member $ 3,541,956 $ 3,430,226 $ 2,895,727  
Balances and transactions with related parties [Abstract]        
Accounts receivable 15,577,933 14,555,559    
Accounts payable 33,030,793 46,074,564    
Financial assets at fair value through profit or loss 464,955,449 473,717,157    
Costs [Abstract]        
Gas purchase and others 34,550,518 35,979,882 39,509,571  
Compensation for technical assistance 26,405,660 13,236,442 20,799,669  
Revenue for administrative services 145 477 1,098  
Financial Results [Abstract]        
Interest expense 1,365,343 1,998,012 2,594,867  
Interest gain / Gain / (loss) on fair value 784,372 14,830,319 653,774  
Selling expenses [1] 540,845 308,040 210,621  
Natural Gas Transportation [Member]        
Detail of Significant Transactions with Related Parties [abstract]        
Revenues 19,193,654 9,061,787 12,002,820  
Liquids Production and Commercialization [Member]        
Detail of Significant Transactions with Related Parties [abstract]        
Revenues 16,099,079 18,740,254 24,299,050  
Midstream [Member]        
Detail of Significant Transactions with Related Parties [abstract]        
Revenues 50,261,530 38,952,430 27,428,146  
Comercializadora e Inversora S.A. [Member]        
Balances and transactions with related parties [Abstract]        
Accounts receivable 0 83,399    
Accounts payable 0 121,255    
Costs [Abstract]        
Gas purchase and others 0 [2] 0 0  
Compensation for technical assistance 0 [2] 0 0  
Revenue for administrative services 0 [2] 0 0  
Financial Results [Abstract]        
Interest expense 0 [2] 0 0  
Interest gain / Gain / (loss) on fair value 0 [2] 0 0  
Selling expenses [1] 0 [2] 0 0  
Comercializadora e Inversora S.A. [Member] | Natural Gas Transportation [Member]        
Detail of Significant Transactions with Related Parties [abstract]        
Revenues 2,107,038 [2] 1,525,447 2,024,688  
Comercializadora e Inversora S.A. [Member] | Liquids Production and Commercialization [Member]        
Detail of Significant Transactions with Related Parties [abstract]        
Revenues 0 [2] 0 0  
Comercializadora e Inversora S.A. [Member] | Midstream [Member]        
Detail of Significant Transactions with Related Parties [abstract]        
Revenues 0 [2] 0 0  
CT Barragan S.A. [Member]        
Balances and transactions with related parties [Abstract]        
Accounts receivable 30,807 33,880    
Accounts payable 0 0    
Costs [Abstract]        
Gas purchase and others 0 0 0  
Compensation for technical assistance 0 0 0  
Revenue for administrative services 0 0 0  
Financial Results [Abstract]        
Interest expense 0 0 0  
Interest gain / Gain / (loss) on fair value 784,372 14,830,319 653,774  
Selling expenses [1] 0 0 0  
CT Barragan S.A. [Member] | Natural Gas Transportation [Member]        
Detail of Significant Transactions with Related Parties [abstract]        
Revenues 0 0 0  
CT Barragan S.A. [Member] | Liquids Production and Commercialization [Member]        
Detail of Significant Transactions with Related Parties [abstract]        
Revenues 0 0 0  
CT Barragan S.A. [Member] | Midstream [Member]        
Detail of Significant Transactions with Related Parties [abstract]        
Revenues 128,844 130,421 118,396  
CT Barragan S.A. [Member] | Private Debt Bonds with Related Parties [Member]        
Balances and transactions with related parties [Abstract]        
Financial assets at fair value through profit or loss 20,471,497 21,739,106    
SACDE [Member]        
Balances and transactions with related parties [Abstract]        
Accounts receivable [3] 2,257,463 24,051    
Accounts payable [3] 11,159,046 8,799,269    
Costs [Abstract]        
Gas purchase and others 0 0 0  
Compensation for technical assistance 0 0 0  
Revenue for administrative services 0 0 0  
Financial Results [Abstract]        
Interest expense 0 0 0  
Interest gain / Gain / (loss) on fair value 0 0 0  
Selling expenses [1] 0 0 0  
Other receivables 131,330,449      
SACDE [Member] | Natural Gas Transportation [Member]        
Detail of Significant Transactions with Related Parties [abstract]        
Revenues 0 0 0  
SACDE [Member] | Liquids Production and Commercialization [Member]        
Detail of Significant Transactions with Related Parties [abstract]        
Revenues 0 0 0  
SACDE [Member] | Midstream [Member]        
Detail of Significant Transactions with Related Parties [abstract]        
Revenues 217,663 116,001 48,847  
SACDE [Member] | Other Credits [Member]        
Balances and transactions with related parties [Abstract]        
Accounts receivable 2,120,362      
Transener S.A. [Member]        
Balances and transactions with related parties [Abstract]        
Accounts receivable 48,625 133    
Accounts payable 0 0    
Costs [Abstract]        
Gas purchase and others 0 0 0  
Compensation for technical assistance 0 0 0  
Revenue for administrative services 0 0 0  
Financial Results [Abstract]        
Interest expense 0 0 0  
Interest gain / Gain / (loss) on fair value 0 0 0  
Selling expenses [1] 0 0 0  
Transener S.A. [Member] | Natural Gas Transportation [Member]        
Detail of Significant Transactions with Related Parties [abstract]        
Revenues 0 0 0  
Transener S.A. [Member] | Liquids Production and Commercialization [Member]        
Detail of Significant Transactions with Related Parties [abstract]        
Revenues 0 0 0  
Transener S.A. [Member] | Midstream [Member]        
Detail of Significant Transactions with Related Parties [abstract]        
Revenues 376 1,291 2,829  
Fundacion TGS [Member]        
Costs [Abstract]        
Gas purchase and others 0 0 0  
Compensation for technical assistance 0 0 0  
Revenue for administrative services 0 0 0  
Financial Results [Abstract]        
Interest expense 0 0 0  
Interest gain / Gain / (loss) on fair value 0 0 0  
Selling expenses [1] 540,845 308,040 210,621  
Fundacion TGS [Member] | Natural Gas Transportation [Member]        
Detail of Significant Transactions with Related Parties [abstract]        
Revenues 0 0 0  
Fundacion TGS [Member] | Liquids Production and Commercialization [Member]        
Detail of Significant Transactions with Related Parties [abstract]        
Revenues 0 0 0  
Fundacion TGS [Member] | Midstream [Member]        
Detail of Significant Transactions with Related Parties [abstract]        
Revenues 0 0 0  
Link [Member]        
Balances and transactions with related parties [Abstract]        
Accounts receivable 29,595 38,019    
Accounts payable 0 0    
Costs [Abstract]        
Gas purchase and others 0 0 0  
Compensation for technical assistance 0 0 0  
Revenue for administrative services 0 0 0  
Financial Results [Abstract]        
Interest expense 0 0 0  
Interest gain / Gain / (loss) on fair value 0 0 0  
Selling expenses [1] 0 0 0  
Link [Member] | Natural Gas Transportation [Member]        
Detail of Significant Transactions with Related Parties [abstract]        
Revenues 0 0 0  
Link [Member] | Liquids Production and Commercialization [Member]        
Detail of Significant Transactions with Related Parties [abstract]        
Revenues 0 0 0  
Link [Member] | Midstream [Member]        
Detail of Significant Transactions with Related Parties [abstract]        
Revenues 302,193 307,484 317,027  
TGU [Member]        
Balances and transactions with related parties [Abstract]        
Accounts receivable 0 0    
Accounts payable 0 280,225    
Pampa Energia [Member]        
Balances and transactions with related parties [Abstract]        
Accounts receivable [4] 13,211,443 14,376,077    
Accounts payable 21,871,747 [4] 36,873,815 [4]   $ 0.5
Costs [Abstract]        
Gas purchase and others 34,550,518 35,979,882 39,509,571  
Compensation for technical assistance 26,405,660 13,236,442 20,799,669  
Revenue for administrative services 0 0 0  
Financial Results [Abstract]        
Interest expense 1,365,343 1,998,012 2,594,867  
Interest gain / Gain / (loss) on fair value 0 0 0  
Selling expenses [1] $ 0 0 0  
Pampa Energia [Member] | From 12/28/2019 to 12/27/2020 [Member]        
Technical, financial and operational assistance agreement [abstract]        
Percentage of annual comprehensive income before results and income taxes 6.50%      
Pampa Energia [Member] | From 12/28/2020 to 12/27/2021 [Member]        
Technical, financial and operational assistance agreement [abstract]        
Percentage of annual comprehensive income before results and income taxes 6.00%      
Pampa Energia [Member] | From 12/28/2021 to 12/27/2022 [Member]        
Technical, financial and operational assistance agreement [abstract]        
Percentage of annual comprehensive income before results and income taxes 5.50%      
Pampa Energia [Member] | From 12/28/2022 to 12/27/2023 [Member]        
Technical, financial and operational assistance agreement [abstract]        
Percentage of annual comprehensive income before results and income taxes 5.00%      
Pampa Energia [Member] | From 12/28/2023 to 12/27/2024 and onwards [Member]        
Technical, financial and operational assistance agreement [abstract]        
Percentage of annual comprehensive income before results and income taxes 4.50%      
Pampa Energia [Member] | Natural Gas Transportation [Member]        
Detail of Significant Transactions with Related Parties [abstract]        
Revenues $ 17,086,616 7,536,340 9,978,132  
Pampa Energia [Member] | Liquids Production and Commercialization [Member]        
Detail of Significant Transactions with Related Parties [abstract]        
Revenues 16,099,079 18,740,254 24,299,050  
Pampa Energia [Member] | Midstream [Member]        
Detail of Significant Transactions with Related Parties [abstract]        
Revenues 49,612,454 38,397,233 26,941,047  
Pampa Energia [Member] | Private Debt Bonds with Related Parties [Member]        
Balances and transactions with related parties [Abstract]        
Financial assets at fair value through profit or loss 20,471,497 21,739,106    
Pampa Energia [Member] | Financial Leasing [Member]        
Balances and transactions with related parties [Abstract]        
Accounts payable 11,540,062 32,114,859    
CIESA [Member]        
Costs [Abstract]        
Gas purchase and others 0 0 0  
Compensation for technical assistance 0 0 0  
Revenue for administrative services 145 477 1,098  
Financial Results [Abstract]        
Interest expense 0 0 0  
Interest gain / Gain / (loss) on fair value 0 0 0  
Selling expenses [1] 0 0 0  
CIESA [Member] | Natural Gas Transportation [Member]        
Detail of Significant Transactions with Related Parties [abstract]        
Revenues 0 0 0  
CIESA [Member] | Liquids Production and Commercialization [Member]        
Detail of Significant Transactions with Related Parties [abstract]        
Revenues 0 0 0  
CIESA [Member] | Midstream [Member]        
Detail of Significant Transactions with Related Parties [abstract]        
Revenues $ 0 $ 0 $ 0  
[1] Corresponds to donations expenses.
[2] On October 3, 2024, it was merged with Pampa Energía.
[3] Accounts receivable as of December 31, 2024 includes Ps. 2,120,362 recorded in “Other Credits”.
[4] Accounts payable includes Ps. 11,540,062 and Ps. 32,114,859 corresponding to the financial leasing recorded as “Loans” as of December 31, 2024 and 2023, respectively.