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LONG-TERM INCENTIVE PLANS - Restricted Shares and Performance Shares (Details) | 12 Months Ended |  |
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Dec. 31, 2022 BRL (R$) EquityInstruments shares | Dec. 31, 2021 BRL (R$) EquityInstruments shares | Dec. 31, 2020 BRL (R$) EquityInstruments shares | Nov. 08, 2022 shares | Dec. 31, 2019 shares
Preferred shares |  |  |  |  |
LONG-TERM INCENTIVE PLANS |  |  |  |  |
Outstanding shares | shares | 1,091,630,395 | 1,133,816,901 | 1,129,231,487 | 1,101,467,245 | 1,127,010,827
Treasury Stocks | Preferred shares |  |  |  |  |
LONG-TERM INCENTIVE PLANS |  |  |  |  |
Outstanding shares | shares | 9,836,850 | 12,214,344 | 16,799,758 |  | 19,020,418
Restricted Shares and Performance Shares |  |  |  |  |
LONG-TERM INCENTIVE PLANS |  |  |  |  |
Balance, beginning of year | 8,534,567 | 12,469,334 | 13,018,407 |  |
Granted | 5,922,879 | 2,228,196 | 3,146,696 |  |
Cancelled | (1,267,065) | (1,755,522) | (1,777,100) |  |
Exercised | (2,377,494) | (4,407,441) | (1,918,669) |  |
Balance, end of year | 10,812,887 | 8,534,567 | 12,469,334 |  |
Fair value of options granted | R$ | R$ 27.25 | R$ 26.88 |  |  |
Expense from equity-settled long-term incentive plan | R$ | R$ 104,714,000 | R$ 65,289,000 | R$ 62,801,000 |  |
Restricted Shares and Performance Shares | Awards granted in 2017 and later |  |  |  |  |
LONG-TERM INCENTIVE PLANS |  |  |  |  |
Grace period | 3 years |  |  |  |

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- Definition The amount of expense arising from equity-settled share-based payment transactions in which the goods or services received did not qualify for recognition as assets. [Refer: Expense from share-based payment transactions] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 2 -IssueDate 2022-03-24 -Paragraph 51 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2022-en-r&anchor=para_51_a&doctype=Standard -URIDate 2022-03-24 + Details
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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 2022-03-24 -Paragraph 47 -Subparagraph b -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2022-en-r&anchor=para_47_b&doctype=Standard -URIDate 2022-03-24 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Name IFRS -Number 2 -IssueDate 2022-03-24 -Paragraph 45 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2022-en-r&anchor=para_45&doctype=Standard -URIDate 2022-03-24 + Details
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