v3.26.1
Securities at amortized cost (AC) - Schedule of Financial Assets At Amortized Cost (Details) - BRL (R$)
R$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Disclosure of financial assets [line items]    
Total R$ 2,042,788 R$ 1,912,804
Corporate securities | Promissory and commercial notes    
Disclosure of financial assets [line items]    
Total 21,359 16,312
Financial Assets Securities    
Disclosure of financial assets [line items]    
Total 329,965 327,507
Expected credit loss (2,492) (3,655)
Amortized cost 327,473 323,852
Financial Assets Securities | Government securities    
Disclosure of financial assets [line items]    
Total 126,693 158,680
Financial Assets Securities | Government securities | Brazil    
Disclosure of financial assets [line items]    
Total 105,678 111,824
Financial Assets Securities | Government securities | Latin America    
Disclosure of financial assets [line items]    
Total 5,974 21,730
Financial Assets Securities | Government securities | Abroad    
Disclosure of financial assets [line items]    
Total 15,041 25,126
Financial Assets Securities | Corporate securities    
Disclosure of financial assets [line items]    
Total 193,458 168,827
Financial Assets Securities | Corporate securities | Rural product note    
Disclosure of financial assets [line items]    
Total 69,778 60,358
Financial Assets Securities | Corporate securities | Bank deposit certificates    
Disclosure of financial assets [line items]    
Total 63 50
Financial Assets Securities | Corporate securities | Real estate receivables certificates    
Disclosure of financial assets [line items]    
Total 4,209 5,827
Financial Assets Securities | Corporate securities | Debentures    
Disclosure of financial assets [line items]    
Total 79,168 77,344
Financial Assets Securities | Corporate securities | Eurobonds and other    
Disclosure of financial assets [line items]    
Total 11,690 1,102
Financial Assets Securities | Corporate securities | Financial bills    
Disclosure of financial assets [line items]    
Total 379 212
Financial Assets Securities | Corporate securities | Other    
Disclosure of financial assets [line items]    
Total 6,812 7,622
Financial Assets Securities | Investment funds    
Disclosure of financial assets [line items]    
Total R$ 9,814 R$ 0