v3.26.1
Fair value - Schedule of Breakdown of Fair Value Hierarchy Levels (Details) - BRL (R$)
R$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Disclosure of financial assets [line items]      
Financial assets R$ 745,742 R$ 666,128  
Financial assets at fair value through other comprehensive income 132,473 106,303  
Financial assets at fair value through profit or loss 613,269 559,825  
Non-financial assets 4,139 2,345  
Financial liabilities (2,424,121) (2,239,979)  
Derivatives 73,384 92,439  
Financial liabilities (69,760) (85,413)  
Forward      
Disclosure of financial assets [line items]      
Derivatives 4,607 1,739  
Financial liabilities (4,381) (1,450)  
Options      
Disclosure of financial assets [line items]      
Derivatives 11,726 21,170  
Financial liabilities (8,402) (20,588)  
Swaps      
Disclosure of financial assets [line items]      
Derivatives 47,184 55,428  
Financial liabilities (45,453) (51,394)  
NDF      
Disclosure of financial assets [line items]      
Derivatives 8,351 12,207  
Financial liabilities (10,929) (10,761)  
Credit derivatives      
Disclosure of financial assets [line items]      
Derivatives 615 633  
Financial liabilities (367) (795)  
Other      
Disclosure of financial assets [line items]      
Derivatives 901 1,262  
Financial liabilities (228) (425)  
Financial liabilities      
Disclosure of financial assets [line items]      
Financial liabilities (1,686) (862)  
Financial liabilities at fair value through profit or loss      
Disclosure of financial assets [line items]      
Financial liabilities at fair value through profit or loss (1,686) (862)  
Financial liabilities at fair value through profit or loss | Structured notes      
Disclosure of financial assets [line items]      
Financial liabilities at fair value through profit or loss (57) (318)  
Financial liabilities at fair value through profit or loss | Other financial liabilities      
Disclosure of financial assets [line items]      
Financial liabilities at fair value through profit or loss (1,629) (544)  
Level 1      
Disclosure of financial assets [line items]      
Financial assets 616,603 535,394  
Financial assets at fair value through other comprehensive income 128,557 103,319  
Financial assets at fair value through profit or loss 488,046 432,075  
Non-financial assets 4,139 2,345  
Derivatives 21 5  
Financial liabilities (418) (67)  
Level 1 | Forward      
Disclosure of financial assets [line items]      
Derivatives 4 0  
Financial liabilities (338) 0  
Level 1 | Options      
Disclosure of financial assets [line items]      
Derivatives 0 0  
Financial liabilities (30) 0  
Level 1 | Swaps      
Disclosure of financial assets [line items]      
Derivatives 0 0  
Financial liabilities 0 0  
Level 1 | NDF      
Disclosure of financial assets [line items]      
Derivatives 0 0  
Financial liabilities 0 0  
Level 1 | Credit derivatives      
Disclosure of financial assets [line items]      
Derivatives 0 0  
Financial liabilities 0 0  
Level 1 | Other      
Disclosure of financial assets [line items]      
Derivatives 17 5  
Financial liabilities (50) (67)  
Level 1 | Financial liabilities      
Disclosure of financial assets [line items]      
Financial liabilities 0 0  
Level 1 | Financial liabilities at fair value through profit or loss      
Disclosure of financial assets [line items]      
Financial liabilities at fair value through profit or loss 0 0  
Level 1 | Financial liabilities at fair value through profit or loss | Structured notes      
Disclosure of financial assets [line items]      
Financial liabilities at fair value through profit or loss 0 0  
Level 1 | Financial liabilities at fair value through profit or loss | Other financial liabilities      
Disclosure of financial assets [line items]      
Financial liabilities at fair value through profit or loss 0 0  
Level 2      
Disclosure of financial assets [line items]      
Financial assets 128,416 128,576  
Financial assets at fair value through other comprehensive income 3,662 2,766  
Financial assets at fair value through profit or loss 124,754 125,810  
Non-financial assets 0 0  
Derivatives 72,982 92,062  
Financial liabilities (67,760) (85,171)  
Level 2 | Forward      
Disclosure of financial assets [line items]      
Derivatives 4,586 1,721  
Financial liabilities (4,028) (1,435)  
Level 2 | Options      
Disclosure of financial assets [line items]      
Derivatives 11,707 21,139  
Financial liabilities (8,350) (20,580)  
Level 2 | Swaps      
Disclosure of financial assets [line items]      
Derivatives 46,839 55,106  
Financial liabilities (43,908) (51,242)  
Level 2 | NDF      
Disclosure of financial assets [line items]      
Derivatives 8,351 12,207  
Financial liabilities (10,929) (10,761)  
Level 2 | Credit derivatives      
Disclosure of financial assets [line items]      
Derivatives 615 632  
Financial liabilities (367) (795)  
Level 2 | Other      
Disclosure of financial assets [line items]      
Derivatives 884 1,257  
Financial liabilities (178) (358)  
Level 2 | Financial liabilities      
Disclosure of financial assets [line items]      
Financial liabilities (1,686) (862)  
Level 2 | Financial liabilities at fair value through profit or loss      
Disclosure of financial assets [line items]      
Financial liabilities at fair value through profit or loss (1,686) (862)  
Level 2 | Financial liabilities at fair value through profit or loss | Structured notes      
Disclosure of financial assets [line items]      
Financial liabilities at fair value through profit or loss (57) (318)  
Level 2 | Financial liabilities at fair value through profit or loss | Other financial liabilities      
Disclosure of financial assets [line items]      
Financial liabilities at fair value through profit or loss (1,629) (544)  
Level 3      
Disclosure of financial assets [line items]      
Financial assets 723 2,158 R$ 2,371
Financial assets at fair value through other comprehensive income 254 218 253
Financial assets at fair value through profit or loss 469 1,940 2,118
Non-financial assets 0 0  
Derivatives 381 372 262
Financial liabilities (1,582) (175)  
Level 3 | Forward      
Disclosure of financial assets [line items]      
Derivatives 17 18  
Financial liabilities (15) (15)  
Level 3 | Options      
Disclosure of financial assets [line items]      
Derivatives 19 31  
Financial liabilities (22) (8)  
Level 3 | Swaps      
Disclosure of financial assets [line items]      
Derivatives 345 322  
Financial liabilities (1,545) (152)  
Level 3 | NDF      
Disclosure of financial assets [line items]      
Derivatives 0 0  
Financial liabilities 0 0  
Level 3 | Credit derivatives      
Disclosure of financial assets [line items]      
Derivatives 0 1  
Financial liabilities 0 0  
Level 3 | Other      
Disclosure of financial assets [line items]      
Derivatives 0 0  
Financial liabilities 0 0  
Level 3 | Financial liabilities      
Disclosure of financial assets [line items]      
Financial liabilities 0 0  
Level 3 | Financial liabilities at fair value through profit or loss      
Disclosure of financial assets [line items]      
Financial liabilities at fair value through profit or loss 0 0  
Level 3 | Financial liabilities at fair value through profit or loss | Structured notes      
Disclosure of financial assets [line items]      
Financial liabilities at fair value through profit or loss 0 0  
Level 3 | Financial liabilities at fair value through profit or loss | Other financial liabilities      
Disclosure of financial assets [line items]      
Financial liabilities at fair value through profit or loss 0 0  
Government securities      
Disclosure of financial assets [line items]      
Financial assets at fair value through other comprehensive income 120,890 98,873  
Financial assets at fair value through profit or loss 402,874 367,550  
Designated as fair value through profit or loss 15,505 318  
Government securities | Brazil      
Disclosure of financial assets [line items]      
Financial assets at fair value through profit or loss 396,458 361,696  
Government securities | Latin America      
Disclosure of financial assets [line items]      
Financial assets at fair value through profit or loss 6,015 4,381  
Government securities | Abroad      
Disclosure of financial assets [line items]      
Financial assets at fair value through profit or loss 401 1,473  
Government securities | Level 1      
Disclosure of financial assets [line items]      
Financial assets at fair value through other comprehensive income 120,890 98,873  
Financial assets at fair value through profit or loss 398,919 364,740  
Designated as fair value through profit or loss 15,505 318  
Government securities | Level 1 | Brazil      
Disclosure of financial assets [line items]      
Financial assets at fair value through profit or loss 392,506 358,886  
Government securities | Level 1 | Latin America      
Disclosure of financial assets [line items]      
Financial assets at fair value through profit or loss 6,012 4,381  
Government securities | Level 1 | Abroad      
Disclosure of financial assets [line items]      
Financial assets at fair value through profit or loss 401 1,473  
Government securities | Level 2      
Disclosure of financial assets [line items]      
Financial assets at fair value through other comprehensive income 0 0  
Financial assets at fair value through profit or loss 3,955 2,810  
Designated as fair value through profit or loss 0 0  
Government securities | Level 2 | Brazil      
Disclosure of financial assets [line items]      
Financial assets at fair value through profit or loss 3,952 2,810  
Government securities | Level 2 | Latin America      
Disclosure of financial assets [line items]      
Financial assets at fair value through profit or loss 3 0  
Government securities | Level 2 | Abroad      
Disclosure of financial assets [line items]      
Financial assets at fair value through profit or loss 0 0  
Government securities | Level 3      
Disclosure of financial assets [line items]      
Financial assets at fair value through other comprehensive income 0 0  
Financial assets at fair value through profit or loss 0 0  
Designated as fair value through profit or loss 0 0  
Government securities | Level 3 | Brazil      
Disclosure of financial assets [line items]      
Financial assets at fair value through profit or loss 0 0  
Government securities | Level 3 | Latin America      
Disclosure of financial assets [line items]      
Financial assets at fair value through profit or loss 0 0  
Government securities | Level 3 | Abroad      
Disclosure of financial assets [line items]      
Financial assets at fair value through profit or loss 0 0  
Brazil      
Disclosure of financial assets [line items]      
Financial assets at fair value through other comprehensive income 81,763 64,377  
Designated as fair value through profit or loss 57 43  
Brazil | Level 1      
Disclosure of financial assets [line items]      
Financial assets at fair value through other comprehensive income 81,763 64,377  
Designated as fair value through profit or loss 57 43  
Brazil | Level 2      
Disclosure of financial assets [line items]      
Financial assets at fair value through other comprehensive income 0 0  
Designated as fair value through profit or loss 0 0  
Brazil | Level 3      
Disclosure of financial assets [line items]      
Financial assets at fair value through other comprehensive income 0 0  
Designated as fair value through profit or loss 0 0  
Latin America      
Disclosure of financial assets [line items]      
Financial assets at fair value through other comprehensive income 25,143 21,470  
Designated as fair value through profit or loss 15,448 275  
Latin America | Level 1      
Disclosure of financial assets [line items]      
Financial assets at fair value through other comprehensive income 25,143 21,470  
Designated as fair value through profit or loss 15,448 275  
Latin America | Level 2      
Disclosure of financial assets [line items]      
Financial assets at fair value through other comprehensive income 0 0  
Designated as fair value through profit or loss 0 0  
Latin America | Level 3      
Disclosure of financial assets [line items]      
Financial assets at fair value through other comprehensive income 0 0  
Designated as fair value through profit or loss 0 0  
Abroad      
Disclosure of financial assets [line items]      
Financial assets at fair value through other comprehensive income 13,984 13,026  
Abroad | Level 1      
Disclosure of financial assets [line items]      
Financial assets at fair value through other comprehensive income 13,984 13,026  
Abroad | Level 2      
Disclosure of financial assets [line items]      
Financial assets at fair value through other comprehensive income 0 0  
Abroad | Level 3      
Disclosure of financial assets [line items]      
Financial assets at fair value through other comprehensive income 0 0  
Corporate securities      
Disclosure of financial assets [line items]      
Financial assets at fair value through other comprehensive income 10,803 6,864  
Financial assets at fair value through profit or loss 145,375 129,292  
Corporate securities | Rural product note      
Disclosure of financial assets [line items]      
Financial assets at fair value through other comprehensive income 0 126  
Financial assets at fair value through profit or loss 636 941  
Corporate securities | Bank deposit certificates      
Disclosure of financial assets [line items]      
Financial assets at fair value through other comprehensive income 167 83  
Financial assets at fair value through profit or loss 1,108 450  
Corporate securities | Real estate receivables certificates      
Disclosure of financial assets [line items]      
Financial assets at fair value through other comprehensive income 222 57  
Financial assets at fair value through profit or loss 2,046 1,654  
Corporate securities | Debentures      
Disclosure of financial assets [line items]      
Financial assets at fair value through other comprehensive income 4,413 1,498  
Financial assets at fair value through profit or loss 97,906 87,142  
Corporate securities | Eurobonds and other      
Disclosure of financial assets [line items]      
Financial assets at fair value through other comprehensive income 5,871 4,812  
Financial assets at fair value through profit or loss 3,098 1,991  
Corporate securities | Financial credit bills      
Disclosure of financial assets [line items]      
Financial assets at fair value through other comprehensive income 5 53  
Financial assets at fair value through profit or loss 37,345 33,071  
Corporate securities | Other      
Disclosure of financial assets [line items]      
Financial assets at fair value through other comprehensive income 125 235  
Financial assets at fair value through profit or loss 2,062 2,827  
Corporate securities | Shares      
Disclosure of financial assets [line items]      
Financial assets at fair value through other comprehensive income 780 566  
Corporate securities | Investment funds      
Disclosure of financial assets [line items]      
Financial assets at fair value through profit or loss 39,845 37,103  
Corporate securities | Promissory and commercial notes      
Disclosure of financial assets [line items]      
Financial assets at fair value through profit or loss 1,174 1,216  
Corporate securities | Level 1      
Disclosure of financial assets [line items]      
Financial assets at fair value through other comprehensive income 6,948 3,937  
Financial assets at fair value through profit or loss 75,221 58,396  
Corporate securities | Level 1 | Rural product note      
Disclosure of financial assets [line items]      
Financial assets at fair value through other comprehensive income 0 0  
Financial assets at fair value through profit or loss 0 0  
Corporate securities | Level 1 | Bank deposit certificates      
Disclosure of financial assets [line items]      
Financial assets at fair value through other comprehensive income 0 0  
Financial assets at fair value through profit or loss 0 0  
Corporate securities | Level 1 | Real estate receivables certificates      
Disclosure of financial assets [line items]      
Financial assets at fair value through other comprehensive income 0 0  
Financial assets at fair value through profit or loss 249 265  
Corporate securities | Level 1 | Debentures      
Disclosure of financial assets [line items]      
Financial assets at fair value through other comprehensive income 2,248 761  
Financial assets at fair value through profit or loss 71,016 55,942  
Corporate securities | Level 1 | Eurobonds and other      
Disclosure of financial assets [line items]      
Financial assets at fair value through other comprehensive income 4,700 3,162  
Financial assets at fair value through profit or loss 3,001 1,968  
Corporate securities | Level 1 | Financial credit bills      
Disclosure of financial assets [line items]      
Financial assets at fair value through other comprehensive income 0 0  
Financial assets at fair value through profit or loss 0 0  
Corporate securities | Level 1 | Other      
Disclosure of financial assets [line items]      
Financial assets at fair value through other comprehensive income 0 14  
Financial assets at fair value through profit or loss 955 221  
Corporate securities | Level 1 | Shares      
Disclosure of financial assets [line items]      
Financial assets at fair value through other comprehensive income 719 509  
Corporate securities | Level 1 | Investment funds      
Disclosure of financial assets [line items]      
Financial assets at fair value through profit or loss 1,780 1,280  
Corporate securities | Level 1 | Promissory and commercial notes      
Disclosure of financial assets [line items]      
Financial assets at fair value through profit or loss 0 0  
Corporate securities | Level 2      
Disclosure of financial assets [line items]      
Financial assets at fair value through other comprehensive income 3,603 2,709  
Financial assets at fair value through profit or loss 69,789 69,062  
Corporate securities | Level 2 | Rural product note      
Disclosure of financial assets [line items]      
Financial assets at fair value through other comprehensive income 0 126  
Financial assets at fair value through profit or loss 636 941  
Corporate securities | Level 2 | Bank deposit certificates      
Disclosure of financial assets [line items]      
Financial assets at fair value through other comprehensive income 167 83  
Financial assets at fair value through profit or loss 1,108 450  
Corporate securities | Level 2 | Real estate receivables certificates      
Disclosure of financial assets [line items]      
Financial assets at fair value through other comprehensive income 222 57  
Financial assets at fair value through profit or loss 1,714 1,289  
Corporate securities | Level 2 | Debentures      
Disclosure of financial assets [line items]      
Financial assets at fair value through other comprehensive income 1,913 519  
Financial assets at fair value through profit or loss 26,612 29,466  
Corporate securities | Level 2 | Eurobonds and other      
Disclosure of financial assets [line items]      
Financial assets at fair value through other comprehensive income 1,171 1,650  
Financial assets at fair value through profit or loss 97 23  
Corporate securities | Level 2 | Financial credit bills      
Disclosure of financial assets [line items]      
Financial assets at fair value through other comprehensive income 5 53  
Financial assets at fair value through profit or loss 37,343 33,071  
Corporate securities | Level 2 | Other      
Disclosure of financial assets [line items]      
Financial assets at fair value through other comprehensive income 125 221  
Financial assets at fair value through profit or loss 1,105 2,606  
Corporate securities | Level 2 | Shares      
Disclosure of financial assets [line items]      
Financial assets at fair value through other comprehensive income 59 57  
Corporate securities | Level 2 | Investment funds      
Disclosure of financial assets [line items]      
Financial assets at fair value through profit or loss 38,065 35,823  
Corporate securities | Level 2 | Promissory and commercial notes      
Disclosure of financial assets [line items]      
Financial assets at fair value through profit or loss 1,174 1,216  
Corporate securities | Level 3      
Disclosure of financial assets [line items]      
Financial assets at fair value through other comprehensive income 252 218  
Financial assets at fair value through profit or loss 365 1,834  
Corporate securities | Level 3 | Rural product note      
Disclosure of financial assets [line items]      
Financial assets at fair value through other comprehensive income 0 0  
Financial assets at fair value through profit or loss 0 0  
Corporate securities | Level 3 | Bank deposit certificates      
Disclosure of financial assets [line items]      
Financial assets at fair value through other comprehensive income 0 0  
Financial assets at fair value through profit or loss 0 0  
Corporate securities | Level 3 | Real estate receivables certificates      
Disclosure of financial assets [line items]      
Financial assets at fair value through other comprehensive income 0 0  
Financial assets at fair value through profit or loss 83 100  
Corporate securities | Level 3 | Debentures      
Disclosure of financial assets [line items]      
Financial assets at fair value through other comprehensive income 252 218  
Financial assets at fair value through profit or loss 278 1,734  
Corporate securities | Level 3 | Eurobonds and other      
Disclosure of financial assets [line items]      
Financial assets at fair value through other comprehensive income 0 0  
Financial assets at fair value through profit or loss 0 0  
Corporate securities | Level 3 | Financial credit bills      
Disclosure of financial assets [line items]      
Financial assets at fair value through other comprehensive income 0 0  
Financial assets at fair value through profit or loss 2 0  
Corporate securities | Level 3 | Other      
Disclosure of financial assets [line items]      
Financial assets at fair value through other comprehensive income 0 0  
Financial assets at fair value through profit or loss 2 0  
Corporate securities | Level 3 | Shares      
Disclosure of financial assets [line items]      
Financial assets at fair value through other comprehensive income 2 0  
Corporate securities | Level 3 | Investment funds      
Disclosure of financial assets [line items]      
Financial assets at fair value through profit or loss 0 0  
Corporate securities | Level 3 | Promissory and commercial notes      
Disclosure of financial assets [line items]      
Financial assets at fair value through profit or loss 0 0  
Designated as fair value through profit or loss      
Disclosure of financial assets [line items]      
Designated as fair value through profit or loss 15,505 318  
Designated as fair value through profit or loss | Level 1      
Disclosure of financial assets [line items]      
Designated as fair value through profit or loss 15,505 318  
Designated as fair value through profit or loss | Level 2      
Disclosure of financial assets [line items]      
Designated as fair value through profit or loss 0 0  
Designated as fair value through profit or loss | Level 3      
Disclosure of financial assets [line items]      
Designated as fair value through profit or loss 0 0  
Other financial assets      
Disclosure of financial assets [line items]      
Other financial assets 3,092 1,612  
Other financial assets | Level 1      
Disclosure of financial assets [line items]      
Other financial assets 0 0  
Other financial assets | Level 2      
Disclosure of financial assets [line items]      
Other financial assets 3,092 1,612  
Other financial assets | Level 3      
Disclosure of financial assets [line items]      
Other financial assets 0 0  
Shares      
Disclosure of financial assets [line items]      
Financial assets at fair value through profit or loss 25,175 25,880  
Shares | Level 1      
Disclosure of financial assets [line items]      
Financial assets at fair value through profit or loss 12,126 7,659  
Shares | Level 2      
Disclosure of financial assets [line items]      
Financial assets at fair value through profit or loss 12,945 18,115  
Shares | Level 3      
Disclosure of financial assets [line items]      
Financial assets at fair value through other comprehensive income 2   193
Financial assets at fair value through profit or loss R$ 104 R$ 106 R$ 71