v3.26.1
Risk and Capital Management - Schedule Of Var Total - Historical Simulation (Details) - BRL (R$)
R$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Disclosure of detailed information about borrowings [line items]    
Total risk R$ 1,128 R$ 1,743
Interest rates    
Disclosure of detailed information about borrowings [line items]    
Total risk 1,376 2,009
Currencies    
Disclosure of detailed information about borrowings [line items]    
Total risk 51 50
Shares    
Disclosure of detailed information about borrowings [line items]    
Total risk 46 46
Commodities    
Disclosure of detailed information about borrowings [line items]    
Total risk 40 19
Effect of diversification    
Disclosure of detailed information about borrowings [line items]    
Total risk (385) (381)
Average    
Disclosure of detailed information about borrowings [line items]    
Total risk 1,085 939
Average | Interest rates    
Disclosure of detailed information about borrowings [line items]    
Total risk 1,303 1,179
Average | Currencies    
Disclosure of detailed information about borrowings [line items]    
Total risk 40 36
Average | Shares    
Disclosure of detailed information about borrowings [line items]    
Total risk 45 51
Average | Commodities    
Disclosure of detailed information about borrowings [line items]    
Total risk 30 17
Average | Effect of diversification    
Disclosure of detailed information about borrowings [line items]    
Total risk 0 0
Minimum    
Disclosure of detailed information about borrowings [line items]    
Total risk 777 756
Minimum | Interest rates    
Disclosure of detailed information about borrowings [line items]    
Total risk 1,028 988
Minimum | Currencies    
Disclosure of detailed information about borrowings [line items]    
Total risk 22 18
Minimum | Shares    
Disclosure of detailed information about borrowings [line items]    
Total risk 36 35
Minimum | Commodities    
Disclosure of detailed information about borrowings [line items]    
Total risk 10 8
Minimum | Effect of diversification    
Disclosure of detailed information about borrowings [line items]    
Total risk 0 0
Maximum    
Disclosure of detailed information about borrowings [line items]    
Total risk 1,744 1,902
Maximum | Interest rates    
Disclosure of detailed information about borrowings [line items]    
Total risk 1,974 2,120
Maximum | Currencies    
Disclosure of detailed information about borrowings [line items]    
Total risk 97 64
Maximum | Shares    
Disclosure of detailed information about borrowings [line items]    
Total risk 89 86
Maximum | Commodities    
Disclosure of detailed information about borrowings [line items]    
Total risk 67 41
Maximum | Effect of diversification    
Disclosure of detailed information about borrowings [line items]    
Total risk R$ 0 R$ 0