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32. ASSETS AS HELD FOR SALE AND DISCONTINUED OPERATIONS (Details Narrative) - BRL (R$) R$ / shares in Units, R$ in Millions |  |  |  |  | 12 Months Ended |
--- | --- | --- | --- | --- | --- | ---
Jan. 30, 2021 | Jan. 22, 2021 | Jan. 07, 2021 | Jul. 17, 2019 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | Jul. 31, 2020
Disclosure of assets and liabilities classified as held for sale [line items] |  |  |  |  |  |  |  |
Number of shares sold (in shares) |  |  |  |  | 1,518,752,601 | 1,458,752,601 | 1,458,752,601 | 60,000,000
Share price |  |  |  |  |  |  |  | R$ 5.00
Gain on disposal of assets |  |  |  |  | R$ 1,753 | R$ 998 | R$ 893 |
Estimated costs for the sale |  |  |  |  | R$ 29 |  |  |
Dividends declared |  |  |  |  |  | R$ 364 |  |
Light [member] | Events after reporting period [member] |  |  |  |  |  |  |  |
Disclosure of assets and liabilities classified as held for sale [line items] |  |  |  |  |  |  |  |
Description of sale of common shares |  |  | The Company Board of Directors approved the sale of its 68,621,264 common shares in Light, comprising the Company’s entire holding, in a public offering for distribution of a total of 137,242,528 common shares in Light. This offering comprises: (a) primary distribution of 68,621,264 new common shares in Light (“the Primary Offering”); and (b) a secondary distribution, of the Company shares, with restricted placement efforts. The Board of Directors also approved the non-exercise of the Company’s right of first refusal in the Primary Offering, and, consequently waiver, by the Company, of that right of priority in subscription of shares in the Primary Offering. |  |  |  |  |
Total |  | R$ 1,372 |  |  |  |  |  |
Share price |  | R$ 20 |  |  |  |  |  |
Gain after taxes | R$ 109 |  |  |  |  |  |  |
Adjustment in the tax calculation resulted in a positive effect | R$ 113 |  |  |  |  |  |  |
Bottom Of Range [member] |  |  |  |  |  |  |  |
Disclosure of assets and liabilities classified as held for sale [line items] |  |  |  |  |  |  |  |
Number of shares sold (in shares) |  |  |  |  | 68,621,263 |  |  |
Voting rights percentage |  |  |  |  | 22.58% |  |  |
Top of Range [member] |  |  |  |  |  |  |  |
Disclosure of assets and liabilities classified as held for sale [line items] |  |  |  |  |  |  |  |
Number of shares sold (in shares) |  |  |  |  | 303,934,060 |  |  |
Voting rights percentage |  |  |  |  | 49.99% |  |  |
Initial public offering [member] |  |  |  |  |  |  |  |
Disclosure of assets and liabilities classified as held for sale [line items] |  |  |  |  |  |  |  |
Number of shares sold (in shares) |  |  |  | 33,333,333 |  |  |  |
Proceeds from issuance of shares |  |  |  | R$ 625 |  |  |  |
Share price |  |  |  | R$ 18.75 |  |  |  |

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