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v3.21.1

Operations - Main risks and associated measures (Details Textuals) - BRL (R$) R$ in Millions | 1 Months Ended
--- | ---
Nov. 30, 2020 | Jul. 31, 2020 | Apr. 30, 2020
Disclosure of detailed information about borrowings [line items] |  |  |
Decrease percentage of investment plan |  |  | 30.00%
Promissory notes [Member] | IPP [member] |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |
New financing contracted amount |  |  | R$ 1,500
Borrowings, maturity period |  |  | 1 year
Proceeds through the issuance of borrowings |  |  | R$ 1,300
Repayments of borrowings | R$ 300 |  |
Bonds maturing in 2029 [Member] |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |
Proceeds through the issuance of borrowings |  | R$ 350 |
Borrowings, coupon rate |  | 5.25% |

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