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FINANCIAL RISK MANAGEMENT, Credit Risk, Trade and Other Receivables (Details) - ARS ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Trade and Other Receivables, Current and Noncurrent [Abstract]      
Current trade receivables $ 156,318,243 $ 111,284,256  
Allowance for doubtful accounts [1] (301,770) (657,145)  
Total 156,016,473 110,627,111  
Subsidies receivable from government 10,881,706 10,182,355  
Trade and other receivables [Abstract]      
Revenues 1,219,766,287 986,052,768 $ 1,115,696,199
Natural Gas Transportation [Member] | MetroGAS [Member]      
Trade and other receivables [Abstract]      
Revenues 113,619,394 52,956,427 70,225,756
Trade receivables 13,033,790 3,216,147  
Natural Gas Transportation [Member] | Camuzzi Gas Pampeana S.A. [Member]      
Trade and other receivables [Abstract]      
Revenues 84,337,807 39,350,617 52,002,664
Trade receivables 9,716,865 2,365,244  
Natural Gas Transportation [Member] | Naturgy Argentina [Member]      
Trade and other receivables [Abstract]      
Revenues 68,778,244 32,038,698 42,627,598
Trade receivables 8,436,333 2,059,127  
Natural Gas Transportation [Member] | CAMMESA [Member]      
Trade and other receivables [Abstract]      
Revenues 35,418,327 19,266,336 25,736,270
Trade receivables 9,213,758 3,187,698  
Natural Gas Transportation [Member] | Pampa Energia [Member]      
Trade and other receivables [Abstract]      
Revenues 17,086,616 7,536,340 9,978,132
Trade receivables 2,253,966 578,565  
Natural Gas Transportation [Member] | Camuzzi Gas del Sur S.A. [Member]      
Trade and other receivables [Abstract]      
Revenues 20,456,659 9,771,707 12,320,110
Trade receivables 2,339,822 145,085  
Liquids Production and Commercialization [Member] | Pampa Energia [Member]      
Trade and other receivables [Abstract]      
Revenues 16,099,079 18,740,254 24,299,050
Trade receivables 2,377,690 1,407,443  
Liquids Production and Commercialization [Member] | PBB Polisur [Member]      
Trade and other receivables [Abstract]      
Revenues 136,799,988 219,991,441 173,532,947
Trade receivables 13,770,395 16,318,300  
Liquids Production and Commercialization [Member] | Geogas Trading S.A. [Member]      
Trade and other receivables [Abstract]      
Revenues 24,139,860 18,135,161 24,877,680
Trade receivables 0 0  
Liquids Production and Commercialization [Member] | YPF [Member]      
Trade and other receivables [Abstract]      
Revenues 15,426,368 10,591,489 17,622,408
Trade receivables 1,171,556 194,191  
Liquids Production and Commercialization [Member] | Petrobras Global Trading BV [Member]      
Trade and other receivables [Abstract]      
Revenues 8,412,581 4,152,820 1,901,593
Trade receivables 0 4,152,820  
Liquids Production and Commercialization [Member] | Trafigura Beheer [Member]      
Trade and other receivables [Abstract]      
Revenues 77,917,255 90,033,255 108,289,447
Trade receivables 5,514,642 6,725,928  
Midstream [Member] | Pampa Energia [Member]      
Trade and other receivables [Abstract]      
Revenues 49,595,319 38,397,233 26,941,028
Trade receivables 8,544,281 9,201,069  
Midstream [Member] | YPF [Member]      
Trade and other receivables [Abstract]      
Revenues 25,320,969 28,150,424 29,012,777
Trade receivables 5,145,765 8,201,398  
Midstream [Member] | Tecpetrol [Member]      
Trade and other receivables [Abstract]      
Revenues 20,728,296 25,289,029 18,448,921
Trade receivables 3,890,477 3,677,427  
Midstream [Member] | Exxomobil Exploration [Member]      
Trade and other receivables [Abstract]      
Revenues 11,158,951 11,586,808 11,075,715
Trade receivables 1,536,303 1,932,210  
Midstream [Member] | Vista Energy [Member]      
Trade and other receivables [Abstract]      
Revenues 7,852,914 4,485,314 1,596,493
Trade receivables 1,528,803 1,052,351  
Midstream [Member] | Pluspetrol [Member]      
Trade and other receivables [Abstract]      
Revenues 39,036,630 26,921,717 $ 17,892,760
Trade receivables $ 7,042,032 $ 6,042,231  
[1] Said amount represents the best estimate made by tgs according to what is stated in Note 4.b).