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Share capital and additional paid-in capital (Details) - ARS ($)
$ in Millions
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
IfrsStatementLineItems [Line Items]    
Balance at December 31, 2022 $ 353,321 $ 353,293
Payment of Other reserve constitution - Share-based compensation plan 42 28
Balance at December 31, 2023 353,363 353,321
Issued capital [member]    
IfrsStatementLineItems [Line Items]    
Balance at December 31, 2022 348,647 348,647
Payment of Other reserve constitution - Share-based compensation plan
Balance at December 31, 2023 348,647 348,647
Additional paid-in capital [member]    
IfrsStatementLineItems [Line Items]    
Balance at December 31, 2022 4,674 4,646
Payment of Other reserve constitution - Share-based compensation plan 42 28
Balance at December 31, 2023 $ 4,716 $ 4,674