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Share capital and additional paid-in capital (Details) - ARS ($)
$ in Millions
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
IfrsStatementLineItems [Line Items]    
Share capital and additional paid-in capital balance $ 113,449 $ 113,437
Payment of other reserve constitution share-bases compensation plan 9 12
Share capital and additional paid-in capital balance 113,458 113,449
Issued capital [member]    
IfrsStatementLineItems [Line Items]    
Share capital and additional paid-in capital balance 111,957 111,957
Payment of other reserve constitution share-bases compensation plan
Share capital and additional paid-in capital balance 111,957 111,957
Additional paid-in capital [member]    
IfrsStatementLineItems [Line Items]    
Share capital and additional paid-in capital balance 1,492 1,480
Payment of other reserve constitution share-bases compensation plan 9 12
Share capital and additional paid-in capital balance $ 1,501 $ 1,492