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LONG-TERM INCENTIVE PLANS - Restricted Shares and Performance Shares (Details) - Restricted Shares and Performance Shares R$ in Thousands | 12 Months Ended
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Dec. 31, 2021 BRL (R$) EquityInstruments shares | Dec. 31, 2020 BRL (R$) EquityInstruments | Dec. 31, 2019 BRL (R$) EquityInstruments
LONG-TERM INCENTIVE PLANS |  |  |
Balance, beginning of year | 12,469,334 | 13,018,407 | 14,261,501
Granted | 2,228,196 | 3,146,696 | 2,647,995
Cancelled | (1,755,522) | (1,777,100) | (2,104,754)
Exercised | (4,407,441) | (1,918,669) | (1,786,335)
Balance, end of year | 8,534,567 | 12,469,334 | 13,018,407
Expense from equity-settled long-term incentive plan | R$ | R$ 65,289 | R$ 62,801 | R$ 43,895
Awards granted in 2017 and later |  |  |
LONG-TERM INCENTIVE PLANS |  |  |
Grace period |  | 3 years |
Preferred shares |  |  |
LONG-TERM INCENTIVE PLANS |  |  |
Treasury shares | shares | 12,214,344 |  |

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- Definition The number of other equity instruments (ie other than share options) granted in a share-based payment arrangement. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 2 -IssueDate 2021-01-01 -Paragraph 47 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2021-en-r&anchor=para_47_b&doctype=Standard -URIDate 2021-03-24 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Name IFRS -Number 2 -IssueDate 2021-01-01 -Paragraph 45 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2021-en-r&anchor=para_45&doctype=Standard -URIDate 2021-03-24 + Details
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