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26. EQUITY AND REMUNERATION TO SHAREHOLDERS (Details 2) - BRL (R$) R$ / shares in Units, R$ in Millions |  | 12 Months Ended
--- | --- | ---
Jan. 02, 2019 | [1] | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Earnings per share [line items] |  |  |  |  |  |
Net income for the year attributed to equity holders of the parent |  | R$ 2,865 | R$ 2,969 | [1] | R$ 1,401 | [1]
Net income for the year from continuing operations attributed to equity holders of the parent |  | 2,865 | 2,969 | [1] | 1,401 | [1]
Restated [member] |  |  |  |  |  |
Earnings per share [line items] |  |  |  |  |  |
Net income for the year attributed to equity holders of the parent | R$ 1,401 |  | 2,971 | [2] | 1,401 | [2]
Total earnings |  |  |  |  |  |
Net income for the year from continuing operations attributed to equity holders of the parent | R$ 1,401 |  | 2,971 | [2] | 1,401 | [2]
Preferred Shares [member] |  |  |  |  |  |
Earnings per share [line items] |  |  |  |  |  |
Minimum mandatory dividend from net income for the year |  | 986 |  |  |  |
Net income for the year not distributed |  | 920 |  |  |  |
Total earnings |  | R$ 1,906 |  |  |  |
Basic and diluted earnings per share |  | R$ 1.69 |  |  |  |
Minimum mandatory dividend from net income for the year from continuing operations |  | R$ 496 |  |  |  |
Net income for the year from continuing operations not distributed |  | 462 |  |  |  |
Total earnings from continuing operations |  | R$ 958 |  |  |  |
Basic and diluted earnings from continuing operations per share |  | R$ 1.69 |  |  |  |
Preferred Shares [member] | Restated [member] |  |  |  |  |  |
Earnings per share [line items] |  |  |  |  |  |
Minimum mandatory dividend from net income for the year |  |  | 509 |  | 577 |
Net income for the year not distributed |  |  | 1,573 |  | 554 |
Total earnings |  |  | R$ 2,082 |  | R$ 1,131 |
Basic and diluted earnings per share |  |  | R$ 1.89 |  | R$ 1.02 |
Minimum mandatory dividend from net income for the year from continuing operations |  |  | R$ 509 |  | R$ 527 |
Net income for the year from continuing operations not distributed |  |  | 1,424 |  | 390 |
Total earnings from continuing operations |  |  | R$ 1,933 |  | R$ 917 |
Basic and diluted earnings from continuing operations per share |  |  | R$ 1.75 |  | R$ 0.83 |
Common Shares [member] |  |  |  |  |  |
Earnings per share [line items] |  |  |  |  |  |
Minimum mandatory dividend from net income for the year |  | R$ 496 |  |  |  |
Net income for the year not distributed |  | 462 |  |  |  |
Total earnings |  | R$ 958 |  |  |  |
Basic and diluted earnings per share |  | R$ 1.69 |  |  |  |
Minimum mandatory dividend from net income for the year from continuing operations |  | R$ 986 |  |  |  |
Net income for the year from continuing operations not distributed |  | 920 |  |  |  |
Total earnings from continuing operations |  | R$ 1,906 |  |  |  |
Basic and diluted earnings from continuing operations per share |  | R$ 1.69 |  |  |  |
Common Shares [member] | Restated [member] |  |  |  |  |  |
Earnings per share [line items] |  |  |  |  |  |
Minimum mandatory dividend from net income for the year |  |  | R$ 255 |  | R$ 290 |
Net income for the year not distributed |  |  | 790 |  | 279 |
Total earnings |  |  | R$ 1,045 |  | R$ 569 |
Basic and diluted earnings per share |  |  | R$ 1.89 |  | R$ 1.02 |
Minimum mandatory dividend from net income for the year from continuing operations |  |  | R$ 256 |  | R$ 290 |
Net income for the year from continuing operations not distributed |  |  | 737 |  | 171 |
Total earnings from continuing operations |  |  | R$ 993 |  | R$ 461 |
Basic and diluted earnings from continuing operations per share |  |  | R$ 1.75 |  | R$ 0.83 |
[1] | See note 2.8.
[2] | For further details of restatement of comparative balances, see Note 2.8

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