Risk management (Details 2) - BRL (R$) R$ in Thousands |
Dec. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Risk Management | ||
| Credit risk exposure - customers (Thousand of Reais) | R$ 778,881,139 | R$ 750,357,060 |
| Loans and advances to customers, gross (note 9) | 602,039,987 | 599,687,844 |
| Contingent Liabilities - Guarantees and other sureties (note 43.a) | 58,917,343 | 64,387,753 |
| Private securities | R$ 117,923,809 | R$ 86,281,463 |
| Non-performing loans ratio (%) | 8.12% | 7.03% |
| Impairment coverage ratio (%) | 83.22% | 84.44% |
| Specific credit loss provisions, net of RAWO (*) (Thousand of Reais) | R$ 40,694,182 | R$ 35,668,907 |