Intangible assets (Details 2) - BRL (R$) R$ in Thousands |
12 Months Ended | |
|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
|
| IfrsStatementLineItems [Line Items] | ||
| Goodwill registered | R$ 3,112,169 | R$ 3,112,169 |
| Acquisition Of Cozani [Member] | ||
| IfrsStatementLineItems [Line Items] | ||
| Goodwill registered | 2,636,426 | 2,636,426 |
| Acquisitions Of T I M Fiber [Member] | ||
| IfrsStatementLineItems [Line Items] | ||
| Goodwill registered | 108,172 | 108,172 |
| Acquisition Of Intelig [Member] | ||
| IfrsStatementLineItems [Line Items] | ||
| Goodwill registered | 210,015 | 210,015 |
| Acquisition Of Minority Interests [Member] | ||
| IfrsStatementLineItems [Line Items] | ||
| Goodwill registered | R$ 157,556 | R$ 157,556 |