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28. EQUITY AND REMUNERATION TO SHAREHOLDERS (Details 3) - BRL (R$) R$ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Disclosure of reserves within equity [abstract] |  |  |
Investment-related donations and subsidies | R$ 1,857 | R$ 1,857 | R$ 1,857
Goodwill on issuance of shares | 394 | 394 | 69
Shares in treasury | (1) | (1) | (1)
Capital reserves and shares in Treasury | 2,250 | 2,250 | 1,925
Legal reserve | 853 | 853 | 853
Statutory reserve | 57 | 57 | 57
Retained earnings reserve | 5,500 | 3,965 | 3,341
Unrealized profit reserve | 835 |  |
Incentive tax reserve | 85 | 67 | 58
Reserve for mandatory dividends not distributed |  | 1,420 | 1,420
Profit reserves | R$ 8,750 | R$ 6,362 | R$ 5,729

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- Definition The amount received or receivable from the issuance of the entity's shares in excess of nominal value and amounts received from other transactions involving the entity's stock or stockholders. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2019-01-01 -Paragraph 55 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_55&doctype=Standard -URIDate 2019-03-27 + Details
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- Definition A component of equity resulting from discretionary participation features. Discretionary participation features are contractual rights to receive, as a supplement to guaranteed benefits, additional benefits: (a) that are likely to be a significant portion of the total contractual benefits; (b) whose amount or timing is contractually at the discretion of the issuer; and (c) that are contractually based on: (i) the performance of a specified pool of contracts or a specified type of contract; (ii) realised and/or unrealised investment returns on a specified pool of assets held by the issuer; or (iii) the profit or loss of the company, fund or other entity that issues the contract. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Note Expiry date 2021-01-01 -Name IFRS -Number 4 -IssueDate 2019-01-01 -Paragraph IG22 -Subparagraph f -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=4&code=ifrs-tx-2019-en-b&anchor=para_IG22_f&doctype=Implementation%20Guidance&book=b -URIDate 2019-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Note Expiry date 2021-01-01 -Name IFRS -Number 4 -IssueDate 2019-01-01 -Paragraph 34 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=4&code=ifrs-tx-2019-en-b&anchor=para_34_b&doctype=Standard&book=b -URIDate 2019-03-27 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Note Expiry date 2021-01-01 -Name IAS -Number 1 -IssueDate 2019-01-01 -Paragraph 78 -Subparagraph e -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-b&anchor=para_78_e&doctype=Standard&book=b -URIDate 2019-03-27 + Details
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