Income tax and social contribution (Details) - Schedule of changes in deferred income tax and social contribution - BRL (R$) R$ in Millions |
9 Months Ended | 12 Months Ended |
|---|---|---|
Sep. 30, 2022 |
Dec. 31, 2021 |
|
| Schedule Of Changes In Deferred Income Tax And Social Contribution Abstract | ||
| At the beginning of the period | R$ 45 | R$ (82) |
| Benefits (expenses) in the period | (24) | 127 |
| Tax over other comprehensive income | 1 | |
| Others | 1 | |
| At the end of the period | R$ 23 | R$ 45 |