Deposits (Details) - BRL (R$) R$ in Millions |
Dec. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Disclosure of financial liabilities [line items] | ||
| Amortized cost | R$ 1,114,482 | R$ 1,054,741 |
| Current | 527,366 | 526,152 |
| Non-current | 587,116 | 528,589 |
| Interest-bearing deposits | ||
| Disclosure of financial liabilities [line items] | ||
| Amortized cost | 978,478 | 923,330 |
| Savings | ||
| Disclosure of financial liabilities [line items] | ||
| Amortized cost | 177,305 | 180,730 |
| Interbank | ||
| Disclosure of financial liabilities [line items] | ||
| Amortized cost | 11,530 | 7,224 |
| Time deposits | ||
| Disclosure of financial liabilities [line items] | ||
| Amortized cost | 789,643 | 735,376 |
| Non-interest-bearing deposits | ||
| Disclosure of financial liabilities [line items] | ||
| Amortized cost | 136,004 | 131,411 |
| Demand | ||
| Disclosure of financial liabilities [line items] | ||
| Amortized cost | 135,383 | 124,920 |
| Other | ||
| Disclosure of financial liabilities [line items] | ||
| Amortized cost | R$ 621 | R$ 6,491 |