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30 Equity (Details 3) - BRL (R$) R$ / shares in Units, R$ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Basic and diluted numerator |  |  |
Basic and diluted earnings | R$ 3,904,202 |  |
Basic and diluted denominator |  |  |
Weighted average of shares | 2,736,553,750 |  |
Restated [Member] |  |  |
Basic and diluted numerator |  |  |
Basic and diluted earnings |  | R$ 1,989,946 | R$ 1,407,063
Basic and diluted denominator |  |  |
Weighted average of shares |  | 2,736,553,750 | 2,736,553,750
Common shares [member] |  |  |
Basic and diluted numerator |  |  |
Basic and diluted earnings | R$ 1,975,751 |  |
Basic and diluted denominator |  |  |
Weighted average of shares | 1,450,310,800 |  |
Basic and diluted earnings per share attributable to shareholders of parent company | R$ 1.36229 |  |
Common shares [member] | Restated [Member] |  |  |
Basic and diluted numerator |  |  |
Basic and diluted earnings |  | R$ 1,007,102 | R$ 712,234
Basic and diluted denominator |  |  |
Weighted average of shares |  | 1,450,310,800 | 1,450,310,800
Basic and diluted earnings per share attributable to shareholders of parent company |  | R$ 0.69440 | R$ 0.49109
Class "A" preferred [member] |  |  |
Basic and diluted numerator |  |  |
Basic and diluted earnings | R$ 5,883 |  |
Basic and diluted denominator |  |  |
Weighted average of shares | 3,273,682 |  |
Basic and diluted earnings per share attributable to shareholders of parent company | R$ 1.80062 |  |
Class "A" preferred [member] | Restated [Member] |  |  |
Basic and diluted numerator |  |  |
Basic and diluted earnings |  | R$ 2,809 | R$ 1,776
Basic and diluted denominator |  |  |
Weighted average of shares |  | 3,273,682 | 3,286,270
Basic and diluted earnings per share attributable to shareholders of parent company |  | R$ 0.85790 | R$ 0.54020
Class "B" preferred [member] |  |  |
Basic and diluted numerator |  |  |
Basic and diluted earnings | R$ 1,922,568 |  |
Basic and diluted denominator |  |  |
Weighted average of shares | 1,282,969,268 |  |
Basic and diluted earnings per share attributable to shareholders of parent company | R$ 1.49852 |  |
Class "B" preferred [member] | Restated [Member] |  |  |
Basic and diluted numerator |  |  |
Basic and diluted earnings |  | R$ 980,035 | R$ 693,053
Basic and diluted denominator |  |  |
Weighted average of shares |  | 1,282,969,268 | 1,282,956,680
Basic and diluted earnings per share attributable to shareholders of parent company |  | R$ 0.76388 | R$ 0.54020
Continuing operations [member] |  |  |
Basic and diluted numerator |  |  |
Basic and diluted earnings | R$ 3,823,981 | R$ 2,078,267 | R$ 1,308,901
Basic and diluted denominator |  |  |
Weighted average of shares | 2,736,553,750 | 2,736,553,750 | 2,736,553,750
Continuing operations [member] | Common shares [member] |  |  |
Basic and diluted numerator |  |  |
Basic and diluted earnings | R$ 1,935,144 | R$ 1,051,809 | R$ 662,546
Basic and diluted denominator |  |  |
Weighted average of shares | 1,450,310,800 | 1,450,310,800 | 1,450,310,800
Basic and diluted earnings per share attributable to shareholders of parent company | R$ 1.33430 | R$ 0.72523 | R$ 0.45683
Continuing operations [member] | Class "A" preferred [member] |  |  |
Basic and diluted numerator |  |  |
Basic and diluted earnings | R$ 5,783 | R$ 2,920 | R$ 1,652
Basic and diluted denominator |  |  |
Weighted average of shares | 3,268,067 | 3,273,682 | 3,286,270
Basic and diluted earnings per share attributable to shareholders of parent company | R$ 1.76982 | R$ 0.89086 | R$ 0.50251
Continuing operations [member] | Class "B" preferred [member] |  |  |
Basic and diluted numerator |  |  |
Basic and diluted earnings | R$ 1,883,054 | R$ 1,023,538 | R$ 644,703
Basic and diluted denominator |  |  |
Weighted average of shares | 1,282,974,883 | 1,282,969,268 | 1,282,956,680
Basic and diluted earnings per share attributable to shareholders of parent company | R$ 1.46773 | R$ 0.79778 | R$ 0.50251
Discontinued operations [member] |  |  |
Basic and diluted numerator |  |  |
Basic and diluted earnings | R$ 80,221 | R$ (88,321) | R$ 98,162
Basic and diluted denominator |  |  |
Weighted average of shares | 2,736,553,750 | 2,736,553,750 | 2,736,553,750
Discontinued operations [member] | Common shares [member] |  |  |
Basic and diluted numerator |  |  |
Basic and diluted earnings | R$ 40,607 | R$ (44,707) | R$ 49,688
Basic and diluted denominator |  |  |
Weighted average of shares | 1,450,310,800 | 1,450,310,800 | 1,450,310,800
Basic and diluted earnings per share attributable to shareholders of parent company | R$ 0.02800 | R$ (0.03083) | R$ 0.03426
Discontinued operations [member] | Class "A" preferred [member] |  |  |
Basic and diluted numerator |  |  |
Basic and diluted earnings | R$ 100 | R$ (111) | R$ 124
Basic and diluted denominator |  |  |
Weighted average of shares | 3,268,067 | 3,273,682 | 3,286,270
Basic and diluted earnings per share attributable to shareholders of parent company | R$ 0.03080 | R$ (0.03391) | R$ 0.03769
Discontinued operations [member] | Class "B" preferred [member] |  |  |
Basic and diluted numerator |  |  |
Basic and diluted earnings | R$ 39,514 | R$ (43,503) | R$ 48,350
Basic and diluted denominator |  |  |
Weighted average of shares | 1,282,974,883 | 1,282,969,268 | 1,282,956,680
Basic and diluted earnings per share attributable to shareholders of parent company | R$ 0.03080 | R$ (0.03391) | R$ 0.03769

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