Loans and advances to clients (Details 9) - BRL (R$) R$ in Thousands |
Dec. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|
| IfrsStatementLineItems [Line Items] | ||
| Commercial and industrial | R$ 7,238,755 | R$ 7,439,903 |
| Real estate - Construction | 6,693,601 | 6,046,747 |
| Installment loans to individuals | 15,331,081 | 15,123,824 |
| Financial leasing | 30,247 | 37,325 |
| Total | R$ 29,293,684 | R$ 28,647,799 |
| Total Loans Past Due For Less Than 90 Days Member [Member] | ||
| IfrsStatementLineItems [Line Items] | ||
| Commercial and industrial, percentage | 24.71% | 25.97% |
| Real estate - Construction, percentage | 22.85% | 21.11% |
| Installment loans to individuals, percentage | 52.34% | 52.79% |
| Financial leasing, percentage | 0.10% | 0.13% |
| Total, percentage | 100.00% | 100.00% |