Provision for legal and administrative proceedings (Details 2) - BRL (R$) R$ in Thousands |
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
Dec. 31, 2022 |
|---|---|---|---|---|
| IfrsStatementLineItems [Line Items] | ||||
| Tax proceeding | R$ 1,559,687 | R$ 1,564,293 | R$ 1,410,299 | R$ 1,112,153 |
| Provision For Tax [Member] | ||||
| IfrsStatementLineItems [Line Items] | ||||
| Tax proceeding | 896,045 | 759,584 | R$ 666,209 | R$ 473,391 |
| Federal Taxes [Member] | Provision For Tax [Member] | ||||
| IfrsStatementLineItems [Line Items] | ||||
| Tax proceeding | 377,027 | 321,404 | ||
| State Taxes [Member] | Provision For Tax [Member] | ||||
| IfrsStatementLineItems [Line Items] | ||||
| Tax proceeding | 436,204 | 357,011 | ||
| Municipal Taxes [Member] | Provision For Tax [Member] | ||||
| IfrsStatementLineItems [Line Items] | ||||
| Tax proceeding | 11,861 | 10,216 | ||
| Tim SA Proceedings Purchase Price Allocation [Member] | Provision For Tax [Member] | ||||
| IfrsStatementLineItems [Line Items] | ||||
| Tax proceeding | R$ 70,953 | R$ 70,953 |