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Post-employment Benefits (Details 12)
 12 Months Ended
Dec. 31, 2023
IfrsStatementLineItems [Line Items]  
Asset allocation 100.00%
Events After Reporting Period [Member]  
IfrsStatementLineItems [Line Items]  
Asset allocation 100.00%
Fixed Income [Member]  
IfrsStatementLineItems [Line Items]  
Asset allocation 77.20%
Fixed Income [Member] | Events After Reporting Period [Member]  
IfrsStatementLineItems [Line Items]  
Asset allocation 79.10%
Variable Income [Member]  
IfrsStatementLineItems [Line Items]  
Asset allocation 5.30%
Variable Income [Member] | Events After Reporting Period [Member]  
IfrsStatementLineItems [Line Items]  
Asset allocation 4.90%
Loans Allocation [Member]  
IfrsStatementLineItems [Line Items]  
Asset allocation 1.20%
Loans Allocation [Member] | Events After Reporting Period [Member]  
IfrsStatementLineItems [Line Items]  
Asset allocation 1.30%
Real Estate Allocation [Member]  
IfrsStatementLineItems [Line Items]  
Asset allocation 5.60%
Real Estate Allocation [Member] | Events After Reporting Period [Member]  
IfrsStatementLineItems [Line Items]  
Asset allocation 3.60%
Investment Structuring [Member]  
IfrsStatementLineItems [Line Items]  
Asset allocation 8.70%
Investment Structuring [Member] | Events After Reporting Period [Member]  
IfrsStatementLineItems [Line Items]  
Asset allocation 8.80%
Investments Abroad [Member]  
IfrsStatementLineItems [Line Items]  
Asset allocation 2.00%
Investments Abroad [Member] | Events After Reporting Period [Member]  
IfrsStatementLineItems [Line Items]  
Asset allocation 2.40%