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Derivatives (Details 5) - BRL (R$) R$ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023
IfrsStatementLineItems [Line Items] |  |
Notional amount of credit protection sold | R$ (73,103) | R$ (39,006)
Notional amount of credit protection purchased with identical underlying amount | 27,708 | 14,027
Net position | (45,395) | (24,979)
Credit Default Swaps [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Notional amount of credit protection sold | (37,066) | (20,268)
Notional amount of credit protection purchased with identical underlying amount | 27,708 | 14,027
Net position | (9,358) | (6,241)
Total Returns Swap [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Notional amount of credit protection sold | (36,037) | (18,738)
Net position | R$ (36,037) | R$ (18,738)

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