Shareholders' equity (Details) - shares shares in Thousands |
Dec. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|
| IfrsStatementLineItems [Line Items] | ||
| Brazilian residents | 285,328 | 303,120 |
| Foreign residents | 7,213,203 | 7,195,411 |
| Total shares | 7,498,531 | 7,498,531 |
| (-) Treasury shares | (27,331) | (38,904) |
| Total outstanding | 7,471,200 | 7,459,627 |
| Ordinary shares [member] | ||
| IfrsStatementLineItems [Line Items] | ||
| Brazilian residents | 129,745 | 138,618 |
| Foreign residents | 3,688,950 | 3,680,077 |
| Total shares | 3,818,695 | 3,818,695 |
| (-) Treasury shares | (13,666) | (19,452) |
| Total outstanding | 3,805,029 | 3,799,243 |
| Preference shares [member] | ||
| IfrsStatementLineItems [Line Items] | ||
| Brazilian residents | 155,583 | 164,502 |
| Foreign residents | 3,524,253 | 3,515,334 |
| Total shares | 3,679,836 | 3,679,836 |
| (-) Treasury shares | (13,665) | (19,452) |
| Total outstanding | 3,666,171 | 3,660,384 |