Securities sold under repurchase agreements and interbank and institutional market funds - Schedule of Institutional Market Debt (Details) - BRL (R$) R$ in Millions |
Dec. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Disclosure of financial liabilities [line items] | ||
| Institutional market funds | R$ 154,194 | R$ 140,547 |
| Current | 11,423 | 17,033 |
| Non-current | 142,771 | 123,514 |
| Subordinated debt | ||
| Disclosure of financial liabilities [line items] | ||
| Institutional market funds | 48,147 | 45,224 |
| Debentures | ||
| Disclosure of financial liabilities [line items] | ||
| Institutional market funds | 4,122 | 0 |
| Foreign loans through securities | ||
| Disclosure of financial liabilities [line items] | ||
| Institutional market funds | 76,348 | 75,912 |
| Funding from structured operations certificates | ||
| Disclosure of financial liabilities [line items] | ||
| Institutional market funds | R$ 25,577 | R$ 19,411 |