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Interest and similar income and expenses and income of financial assets and liabilities at fair value through profit or loss (Details Narrative) - BRL (R$)
R$ in Millions
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
IfrsStatementLineItems [Line Items]    
Financial assets, expense recognized on expected losses R$ 120 R$ 1,127
Financial assets at amortised cost, class [member]    
IfrsStatementLineItems [Line Items]    
Total loss, net of reversals 90 1,117
Financial assets at fair value through other comprehensive income, category [member]    
IfrsStatementLineItems [Line Items]    
Total loss, net of reversals R$ 30 R$ 10