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Financial instruments by category (Details 3) - ARS ($)
$ in Millions
 12 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Statement [Line Items]    
Beginning balance $ 35 $ 0
Additions and acquisitions   35
Gain for the year (i) (35)  
Ending balance 0 35
Investments in financial assets Others [Member] | Level 3 [Member]    
Statement [Line Items]    
Beginning balance 35 0
Additions and acquisitions   35
Gain for the year (i) (35)  
Ending balance $ 0 $ 35