Income tax and social contribution (Details 2) - BRL (R$) R$ in Thousands |
Dec. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Income Tax And Social Contribution | ||
| Tax loss carryforwards and negative basis of social contribution | R$ 12,132 | |
| Provision for legal and administrative proceedings | 515,324 | 536,550 |
| Provision for expected credit losses | 236,537 | 257,645 |
| Taxes with suspended enforceability | 1,553,124 | 1,230,521 |
| Derivative financial instruments | (118,647) | (274,140) |
| Capitalized interest - 4G and 5G | (211,522) | (246,621) |
| Adjustments related to IFRS 16 | 826,882 | 730,015 |
| Accelerated depreciation (iii) | (1,035,883) | (990,374) |
| Fair value adjustment systems | (249,477) | (249,477) |
| Impairment loss (v) | 192,507 | 269,172 |
| Amortized goodwill cozani | (544,596) | (388,245) |
| Other assets | 273,245 | 287,234 |
| Other liabilities | (81,890) | (92,779) |
| Total deferred taxes - Assets | 1,355,604 | 1,081,633 |
| Deferred tax asset | 3,597,619 | 3,323,269 |
| Deferred tax liability | R$ (2,242,015) | R$ (2,241,636) |