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EQUITY AND REMUNERATION TO SHAREHOLDERS (Details 4) - BRL (R$)
R$ in Millions
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Equity And Remuneration To Shareholders      
Investment-related donations and subsidies R$ 1,857 R$ 1,857 R$ 1,857
Goodwill on issuance of shares 394 394 394
Shares in treasury (1) (1) (1)
Capital reserves and shares in Treasury  R$ 2,250 R$ 2,250 R$ 2,250