Leases (Details) - Schedule of lease expense on variable rents, low-value, and short-term assets - BRL (R$) R$ in Millions |
12 Months Ended | |||
|---|---|---|---|---|
Sep. 30, 2022 |
Sep. 30, 2021 |
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| Variables (1% of sales) [Member] | ||||
| Leases (Details) - Schedule of lease expense on variable rents, low-value, and short-term assets [Line Items] | ||||
| (Expenses) revenues for the period | R$ (25) | R$ (5) | ||
| Subleases [Member] | ||||
| Leases (Details) - Schedule of lease expense on variable rents, low-value, and short-term assets [Line Items] | ||||
| (Expenses) revenues for the period | [1] | R$ 36 | R$ 21 | |
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