v3.26.1
Risk and Capital Management - Schedule of Contractual Maturities of Assets and Liabilities Explanatory (Details) - BRL (R$)
R$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Disclosure of amounts to be recovered or settled after twelve months for classes of assets and liabilities that contain amounts to be recovered or settled both no more and more than twelve months after reporting date [line items]    
Financial guarantees R$ 134,105 R$ 123,915
Credit commitments and credits to be released 581,764 499,814
Contractual commitments - Fixed and Intangible assets 1 0
Total 715,870 623,729
0-30    
Disclosure of amounts to be recovered or settled after twelve months for classes of assets and liabilities that contain amounts to be recovered or settled both no more and more than twelve months after reporting date [line items]    
Financial guarantees 4,170 3,323
Credit commitments and credits to be released 274,961 192,814
Contractual commitments - Fixed and Intangible assets 0 0
Total 279,131 196,137
31 – 365    
Disclosure of amounts to be recovered or settled after twelve months for classes of assets and liabilities that contain amounts to be recovered or settled both no more and more than twelve months after reporting date [line items]    
Financial guarantees 49,367 42,924
Credit commitments and credits to be released 60,573 53,056
Contractual commitments - Fixed and Intangible assets 0 0
Total 109,940 95,980
366-720    
Disclosure of amounts to be recovered or settled after twelve months for classes of assets and liabilities that contain amounts to be recovered or settled both no more and more than twelve months after reporting date [line items]    
Financial guarantees 25,903 21,910
Credit commitments and credits to be released 17,518 19,647
Contractual commitments - Fixed and Intangible assets 0 0
Total 43,421 41,557
Over 720 days    
Disclosure of amounts to be recovered or settled after twelve months for classes of assets and liabilities that contain amounts to be recovered or settled both no more and more than twelve months after reporting date [line items]    
Financial guarantees 54,665 55,758
Credit commitments and credits to be released 228,712 234,297
Contractual commitments - Fixed and Intangible assets 1 0
Total R$ 283,378 R$ 290,055