Tax assets and liabilities (Details 1) - BRL (R$) R$ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|
| Notes and other explanatory information [abstract] | |||
| Gains losses arising from exchange rate fluctuations on the banks investments | R$ (7,474,761) | R$ 13,627,778 | R$ (3,281,452) |
| Income generated from the use of derivative contracts as foreign exchange hedge | 7,838,473 | (14,292,394) | 3,444,617 |
| Tax effect of derivative contracts used as hedge - PIS / COFINS | R$ (363,712) | R$ 664,616 | R$ (163,165) |