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35 Financial Instruments (Details 3) - Foreign Exchange Risk [Member] - BRL (R$) R$ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2019 | Dec. 31, 2020
Disclosure of detailed information about financial instruments [line items] |  |
Financial assets, Baseline | R$ 98,433 |
Financial assets, projected probable |  | R$ 13,903
Financial assets, projected scenario 1 |  | 14,181
Financial assets, projected scenario 2 |  | 42,265
Financial liabilities, Baseline | R$ (410,588) |
Financial liabilities, projected probable |  | 57,992
Financial liabilities, projected scenario 1 |  | 175,137
Financial liabilities, projected scenario 2 |  | 292,282
Loans and Financing [Member] |  |
Disclosure of detailed information about financial instruments [line items] |  |
Financial assets and liabilities risk | USD appreciation |
Financial liabilities, Baseline | R$ (108,983) |
Financial liabilities, projected probable |  | (4,578)
Financial liabilities, projected scenario 1 |  | (32,968)
Financial liabilities, projected scenario 2 |  | (61,358)
Suppliers - Eletrobras (Itaipu) [Member] |  |
Disclosure of detailed information about financial instruments [line items] |  |
Financial assets and liabilities risk | USD appreciation |
Financial liabilities, Baseline | R$ (222,431) |
Financial liabilities, projected probable |  | 31,416
Financial liabilities, projected scenario 1 |  | 94,878
Financial liabilities, projected scenario 2 |  | 158,340
Suppliers - Acquisition Of Gas [Member] |  |
Disclosure of detailed information about financial instruments [line items] |  |
Financial assets and liabilities risk | USD appreciation |
Financial liabilities, Baseline | R$ (79,174) |
Financial liabilities, projected probable |  | 11,183
Financial liabilities, projected scenario 1 |  | 33,772
Financial liabilities, projected scenario 2 |  | 56,361
Collaterals And Escrow Accounts - Stn [Member] |  |
Disclosure of detailed information about financial instruments [line items] |  |
Financial assets and liabilities risk | USD depreciation |
Financial assets, Baseline | R$ 98,433 |
Financial assets, projected probable |  | 13,903
Financial assets, projected scenario 1 |  | 14,181
Financial assets, projected scenario 2 |  | R$ 42,265

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