v3.26.1
Fair value - Schedule of Estimated Fair Value for Financial Assets and Liabilities (Details) - BRL (R$)
R$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Disclosure of fair value measurement of assets [line items]    
Interbank deposits R$ 66,195 R$ 66,931
Securities purchased under agreements to resell 280,595 243,220
Other financial assets 164,029 136,713
Deposits 1,114,482 1,054,741
Securities sold under repurchase agreements 434,607 388,787
Other financial liabilities 241,448 192,407
Book value    
Disclosure of fair value measurement of assets [line items]    
Financial assets at amortized cost 2,042,788 1,912,804
Central Bank of Brazil deposits 167,275 160,698
Interbank deposits 66,169 66,925
Securities purchased under agreements to resell 280,592 243,219
Securities 327,473 323,852
Loan and lease operations 1,037,250 981,397
Other financial assets 164,029 136,713
Financial liabilities at amortized cost 2,350,901 2,148,776
Deposits 1,114,482 1,054,741
Securities sold under repurchase agreements 434,607 388,787
Interbank market funds 406,170 372,294
Institutional market funds 154,194 140,547
Other financial liabilities 241,448 192,407
Fair value    
Disclosure of fair value measurement of assets [line items]    
Financial assets at amortized cost 2,041,928 1,908,145
Central Bank of Brazil deposits 167,275 160,698
Interbank deposits 66,169 66,925
Securities purchased under agreements to resell 280,592 243,219
Securities 326,895 322,079
Loan and lease operations 1,036,968 978,511
Other financial assets 164,029 136,713
Financial liabilities at amortized cost 2,347,651 2,150,952
Deposits 1,114,434 1,054,745
Securities sold under repurchase agreements 434,607 388,787
Interbank market funds 402,669 372,587
Institutional market funds 154,493 142,426
Other financial liabilities R$ 241,448 R$ 192,407