Derivative financial instruments (Details) - BRL (R$) R$ in Thousands |
Dec. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Derivative Financial Instruments | ||
| Swap Differentials Receivable | R$ 11,595,591 | R$ 16,710,659 |
| Option Premiums to Exercise | 6,312,487 | 4,960,933 |
| Forward Contracts and Others | 47,899,620 | 18,534,707 |
| Trading Derivative And Used As Hedge Assets Total | 65,807,698 | 40,206,299 |
| Swap Differentials Payable | 11,893,221 | 16,746,167 |
| Option Premiums Launched | 5,970,844 | 4,455,074 |
| Forward Contracts and Others | 42,147,926 | 18,209,033 |
| Trading Derivative And Used As Hedge Liabilities Total | R$ 60,011,991 | R$ 39,410,274 |