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EQUITY - Changes in treasury stocks (Details) - BRL (R$) R$ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 | Nov. 08, 2022
Value of shares |  |  |  |
Balance at beginning of year | R$ 42,815,649 | R$ 31,085,210 | R$ 27,173,127 |
Exercise of long-term incentive plan | 45,566 | 143,982 | 9,596 |
Balance at end of year | R$ 46,298,193 | R$ 42,815,649 | R$ 31,085,210 |
Common shares |  |  |  |
Number of shares |  |  |  |
Balance at beginning of the year | 571,929,945 | 571,929,945 | 571,929,945 |
Balance at end of year | 571,929,945 | 571,929,945 | 571,929,945 |
Preferred shares |  |  |  |
Number of shares |  |  |  |
Balance at beginning of the year | 1,133,816,901 | 1,129,231,487 | 1,127,010,827 |
Share buyback program | 44,564,000 |  |  |
Exercise of long-term incentive plan | (2,377,494) | (4,585,414) | (2,220,660) |
Balance at end of year | 1,091,630,395 | 1,133,816,901 | 1,129,231,487 |
Treasury Stocks |  |  |  |
Value of shares |  |  |  |
Balance at beginning of year | R$ (152,409) | R$ (229,309) | R$ (242,542) |
Exercise of long-term incentive plan | 21,452 | 76,900 | 13,233 |
Balance at end of year | R$ (179,995) | R$ (152,409) | R$ (229,309) |
Treasury Stocks | Common shares |  |  |  |
Number of shares |  |  |  |
Balance at beginning of the year | 1,697,538 | 1,697,538 | 1,697,538 |
Cancellation of treasury stocks | (1,697,538) |  |  | (1,697,538)
Balance at end of year | 0 | 1,697,538 | 1,697,538 |
Value of shares |  |  |  |
Balance at beginning of year | R$ 557 | R$ 557 | R$ 557 |
Cancellation of treasury stocks | (557) |  |  |
Balance at end of year | R$ 0 | R$ 557 | R$ 557 |
Treasury Stocks | Preferred shares |  |  |  |
Number of shares |  |  |  |
Balance at beginning of the year | 12,214,344 | 16,799,758 | 19,020,418 |
Share buyback program | 44,564,000 |  |  |
Exercise of long-term incentive plan | (2,377,494) | 4,585,414 | 2,220,660 |
Cancellation of treasury stocks | (44,564,000) |  |  | (44,564,000)
Balance at end of year | 9,836,850 | 12,214,344 | 16,799,758 |
Value of shares |  |  |  |
Balance at beginning of year | R$ 151,852 | R$ 228,752 | R$ 241,985 |
Share buyback program | 1,073,124 |  |  |
Exercise of long-term incentive plan | (21,452) | (76,900) | (13,233) |
Cancellation of treasury stocks | (1,023,529) |  |  |
Balance at end of year | R$ 179,995 | R$ 151,852 | R$ 228,752 |

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