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SUBORDINATED DEBTS (Details 1) - BRL (R$)
R$ in Thousands
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Notes and other explanatory information [abstract]    
Opening balances on January 1 R$ 50,337,854 R$ 52,241,332
Issuance 9,000,300 1,129,800
Interest accrued 6,378,786 7,007,236
Settlement and interest payments (8,258,013) (10,040,514)
Closing balance on December 31 R$ 57,458,927 R$ 50,337,854