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Risk and Capital Management (Details 8) - BRL (R$) R$ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023
IfrsStatementLineItems [Line Items] |  |
Over-collateralized assets, Carrying value of the assets | R$ 527,992 | R$ 482,898
Over-collateralized assets, Fair value of collateral | 1,423,267 | 1,300,349
Under-collateralized assets, Carrying value of the assets | 79,750 | 57,826
Under-collateralized assets, Fair value of collateral | 67,332 | 49,165
Micro Small And Medium Companies And Corporates [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Over-collateralized assets, Carrying value of the assets | 166,845 | 167,843
Over-collateralized assets, Fair value of collateral | 592,523 | 596,817
Under-collateralized assets, Carrying value of the assets | 63,892 | 45,885
Under-collateralized assets, Fair value of collateral | 60,395 | 43,484
Foreign Loans [Member] | Foreign countries [member] |  |
IfrsStatementLineItems [Line Items] |  |
Over-collateralized assets, Carrying value of the assets | 188,756 | 160,734
Over-collateralized assets, Fair value of collateral | 374,316 | 304,597
Under-collateralized assets, Carrying value of the assets | 12,731 | 8,340
Under-collateralized assets, Fair value of collateral | 4,201 | 2,508
Individuals [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Over-collateralized assets, Carrying value of the assets | 172,391 | 154,321
Over-collateralized assets, Fair value of collateral | 456,428 | 398,935
Under-collateralized assets, Carrying value of the assets | 3,127 | 3,601
Under-collateralized assets, Fair value of collateral | 2,736 | 3,173
Individuals [Member] | Vehicles [member] |  |
IfrsStatementLineItems [Line Items] |  |
Over-collateralized assets, Carrying value of the assets | 31,859 | 31,230
Over-collateralized assets, Fair value of collateral | 70,772 | 73,967
Under-collateralized assets, Carrying value of the assets | 1,119 | 1,315
Under-collateralized assets, Fair value of collateral | 1,026 | 1,240
Individuals [Member] | Personal Loan [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Over-collateralized assets, Carrying value of the assets | 8,128 | 4,359
Over-collateralized assets, Fair value of collateral | 25,156 | 16,157
Under-collateralized assets, Carrying value of the assets | 1,673 | 1,881
Under-collateralized assets, Fair value of collateral | 1,556 | 1,760
Individuals [Member] | Mortgage Loans [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Over-collateralized assets, Carrying value of the assets | 132,404 | 118,732
Over-collateralized assets, Fair value of collateral | 360,500 | 308,811
Under-collateralized assets, Carrying value of the assets | 335 | 405
Under-collateralized assets, Fair value of collateral | R$ 154 | R$ 173

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