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Post-employment Benefits (Details 13)
 12 Months Ended
Dec. 31, 2022
Fixed Income [Member] | Unified Plan [Member]  
IfrsStatementLineItems [Line Items]  
Target limit 86.00% [1]
Minimum limit 60.00%
Fixed Income [Member] | Plan I I I [Member]  
IfrsStatementLineItems [Line Items]  
Target limit 67.00%
Minimum limit 40.00%
Variable Income [Member] | Unified Plan [Member]  
IfrsStatementLineItems [Line Items]  
Target limit 3.00% [1]
Minimum limit 2.00%
Variable Income [Member] | Plan I I I [Member]  
IfrsStatementLineItems [Line Items]  
Target limit 8.00%
Minimum limit 3.00%
Loans Allocation [Member] | Unified Plan [Member]  
IfrsStatementLineItems [Line Items]  
Target limit 0.50% [1]
Minimum limit 0.00%
Loans Allocation [Member] | Plan I I I [Member]  
IfrsStatementLineItems [Line Items]  
Target limit 2.00%
Minimum limit 0.00%
Real Estate Allocation [Member] | Unified Plan [Member]  
IfrsStatementLineItems [Line Items]  
Target limit 5.50% [1]
Minimum limit 0.00%
Real Estate Allocation [Member] | Plan I I I [Member]  
IfrsStatementLineItems [Line Items]  
Target limit 6.00%
Minimum limit 0.00%
Investment Structuring [Member] | Unified Plan [Member]  
IfrsStatementLineItems [Line Items]  
Target limit 5.00% [1]
Minimum limit 0.00%
Investment Structuring [Member] | Plan I I I [Member]  
IfrsStatementLineItems [Line Items]  
Target limit 13.00%
Minimum limit 0.00%
Foreign Investments Abroad [Member] | Unified Plan [Member]  
IfrsStatementLineItems [Line Items]  
Target limit 0.00% [1]
Minimum limit 0.00%
Foreign Investments [Member] | Plan I I I [Member]  
IfrsStatementLineItems [Line Items]  
Target limit 4.00%
Minimum limit 0.00%
[1] Target 2022.