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19. LEASING TRANSACTIONS (Details 4) - BRL (R$) R$ in Millions | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | [1]
--- | --- | --- | --- | ---
Disclosure of fair value measurement of assets [line items] |  |  |
Undiscounted values | R$ 644 |  |
Embedded interest | (417) |  |
Lease liabilities | 227 | R$ 288 | R$ 342
2021 [member] |  |  |
Disclosure of fair value measurement of assets [line items] |  |  |
Undiscounted values | 56 |  |
2022 [member] |  |  |
Disclosure of fair value measurement of assets [line items] |  |  |
Undiscounted values | 27 |  |
2023 [member] |  |  |
Disclosure of fair value measurement of assets [line items] |  |  |
Undiscounted values | 26 |  |
2024 [member] |  |  |
Disclosure of fair value measurement of assets [line items] |  |  |
Undiscounted values | 26 |  |
2025 [member] |  |  |
Disclosure of fair value measurement of assets [line items] |  |  |
Undiscounted values | 26 |  |
2026 To 2045 [member] |  |  |
Disclosure of fair value measurement of assets [line items] |  |  |
Undiscounted values | R$ 483 |  |
[1] | Financial expenses recognized in the income statement are net of PIS/Pasep and Cofins taxes credits on lease payments in the amounts of R$2 (R$2 on December 31, 2019).

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