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Risk and Capital Management (Details 4) - BRL (R$) R$ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023
IfrsStatementLineItems [Line Items] |  |
Loan operations and lease operations portfolio | R$ 1,025,493 | R$ 910,590
Percentage of loan operations and lease operations portfolio | 100.00% | 100.00%
Loans to corporate entities [member] |  |
IfrsStatementLineItems [Line Items] |  |
Loan operations and lease operations portfolio | R$ 282,327 | R$ 240,407
Micro Small And Medium Companies [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Loan operations and lease operations portfolio | 314,970 | 277,666
Foreign Loans [Member] | Foreign countries [member] |  |
IfrsStatementLineItems [Line Items] |  |
Loan operations and lease operations portfolio | R$ 303,142 | R$ 250,121
Total Stage Two [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Percentage of loan operations and lease operations portfolio | 100.00% | 100.00%
Total Stage Three [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Percentage of loan operations and lease operations portfolio | 100.00% | 100.00%
Loan Operations [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Loan operations and lease operations portfolio | R$ 1,025,493 | R$ 910,590
Percentage of loan operations and lease operations portfolio | 62.20% | 63.10%
Loan Operations [Member] | Loans to corporate entities [member] |  |
IfrsStatementLineItems [Line Items] |  |
Loan operations and lease operations portfolio | R$ 160,840 | R$ 136,461
Loan Operations [Member] | Micro Small And Medium Companies [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Loan operations and lease operations portfolio | 194,192 | 169,110
Loan Operations [Member] | Foreign Loans [Member] | Foreign countries [member] |  |
IfrsStatementLineItems [Line Items] |  |
Loan operations and lease operations portfolio | 224,887 | 188,403
Commitments To Be Released [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Loan operations and lease operations portfolio | R$ 499,814 | R$ 430,078
Percentage of loan operations and lease operations portfolio | 30.30% | 29.80%
Commitments To Be Released [Member] | Loans to corporate entities [member] |  |
IfrsStatementLineItems [Line Items] |  |
Loan operations and lease operations portfolio | R$ 36,416 | R$ 30,549
Commitments To Be Released [Member] | Micro Small And Medium Companies [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Loan operations and lease operations portfolio | 107,281 | 97,192
Commitments To Be Released [Member] | Foreign Loans [Member] | Foreign countries [member] |  |
IfrsStatementLineItems [Line Items] |  |
Loan operations and lease operations portfolio | 53,726 | 44,409
Financial guarantee contracts [member] |  |
IfrsStatementLineItems [Line Items] |  |
Loan operations and lease operations portfolio | R$ 123,915 | R$ 102,622
Percentage of loan operations and lease operations portfolio | 7.50% | 7.10%
Financial guarantee contracts [member] | Loans to corporate entities [member] |  |
IfrsStatementLineItems [Line Items] |  |
Loan operations and lease operations portfolio | R$ 85,071 | R$ 73,397
Financial guarantee contracts [member] | Micro Small And Medium Companies [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Loan operations and lease operations portfolio | 13,497 | 11,364
Financial guarantee contracts [member] | Foreign Loans [Member] | Foreign countries [member] |  |
IfrsStatementLineItems [Line Items] |  |
Loan operations and lease operations portfolio | 24,529 | 17,309
Total Assets [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Loan operations and lease operations portfolio | R$ 1,649,222 | R$ 1,443,290
Percentage of loan operations and lease operations portfolio | 100.00% | 100.00%
Stage One [Member] | Stage One Loan [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Loan operations and lease operations portfolio | R$ 1,479,306 | R$ 1,274,121
Stage One [Member] | Stage One Loan [Member] | Loans to corporate entities [member] |  |
IfrsStatementLineItems [Line Items] |  |
Loan operations and lease operations portfolio | 275,565 | 231,554
Stage One [Member] | Stage One Loan [Member] | Micro Small And Medium Companies [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Loan operations and lease operations portfolio | 291,033 | 252,361
Stage One [Member] | Stage One Loan [Member] | Foreign Loans [Member] | Foreign countries [member] |  |
IfrsStatementLineItems [Line Items] |  |
Loan operations and lease operations portfolio | 273,746 | 225,512
Stage One [Member] | Loan Operations [Member] | Stage One Loan [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Loan operations and lease operations portfolio | R$ 876,653 | R$ 760,654
Percentage of loan operations and lease operations portfolio | 59.30% | 59.70%
Stage One [Member] | Loan Operations [Member] | Stage One Loan [Member] | Loans to corporate entities [member] |  |
IfrsStatementLineItems [Line Items] |  |
Loan operations and lease operations portfolio | R$ 157,973 | R$ 130,916
Stage One [Member] | Loan Operations [Member] | Stage One Loan [Member] | Micro Small And Medium Companies [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Loan operations and lease operations portfolio | 171,866 | 145,422
Stage One [Member] | Loan Operations [Member] | Stage One Loan [Member] | Foreign Loans [Member] | Foreign countries [member] |  |
IfrsStatementLineItems [Line Items] |  |
Loan operations and lease operations portfolio | 199,065 | 166,981
Stage One [Member] | Commitments To Be Released [Member] | Stage One Loan [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Loan operations and lease operations portfolio | R$ 483,308 | R$ 414,954
Percentage of loan operations and lease operations portfolio | 32.70% | 32.60%
Stage One [Member] | Commitments To Be Released [Member] | Stage One Loan [Member] | Loans to corporate entities [member] |  |
IfrsStatementLineItems [Line Items] |  |
Loan operations and lease operations portfolio | R$ 36,191 | R$ 30,053
Stage One [Member] | Commitments To Be Released [Member] | Stage One Loan [Member] | Micro Small And Medium Companies [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Loan operations and lease operations portfolio | 106,004 | 95,886
Stage One [Member] | Commitments To Be Released [Member] | Stage One Loan [Member] | Foreign Loans [Member] | Foreign countries [member] |  |
IfrsStatementLineItems [Line Items] |  |
Loan operations and lease operations portfolio | 50,716 | 42,206
Stage One [Member] | Financial Guarantees [Member] | Stage One Loan [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Loan operations and lease operations portfolio | R$ 119,345 | R$ 98,513
Percentage of loan operations and lease operations portfolio | 8.00% | 7.70%
Stage One [Member] | Financial Guarantees [Member] | Stage One Loan [Member] | Loans to corporate entities [member] |  |
IfrsStatementLineItems [Line Items] |  |
Loan operations and lease operations portfolio | R$ 81,401 | R$ 70,585
Stage One [Member] | Financial Guarantees [Member] | Stage One Loan [Member] | Micro Small And Medium Companies [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Loan operations and lease operations portfolio | 13,163 | 11,053
Stage One [Member] | Financial Guarantees [Member] | Stage One Loan [Member] | Foreign Loans [Member] | Foreign countries [member] |  |
IfrsStatementLineItems [Line Items] |  |
Loan operations and lease operations portfolio | 23,965 | 16,325
Stage Two [Member] | Stage Two Loan [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Loan operations and lease operations portfolio | 111,267 | 105,655
Stage Two [Member] | Stage Two Loan [Member] | Loans to corporate entities [member] |  |
IfrsStatementLineItems [Line Items] |  |
Loan operations and lease operations portfolio | 1,875 | 1,563
Stage Two [Member] | Stage Two Loan [Member] | Micro Small And Medium Companies [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Loan operations and lease operations portfolio | 13,576 | 14,413
Stage Two [Member] | Stage Two Loan [Member] | Foreign Loans [Member] | Foreign countries [member] |  |
IfrsStatementLineItems [Line Items] |  |
Loan operations and lease operations portfolio | 17,400 | 15,126
Stage Two [Member] | Loan Operations [Member] | Stage Two Loan [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Loan operations and lease operations portfolio | R$ 93,709 | R$ 89,699
Percentage of loan operations and lease operations portfolio | 84.20% | 84.90%
Stage Two [Member] | Loan Operations [Member] | Stage Two Loan [Member] | Loans to corporate entities [member] |  |
IfrsStatementLineItems [Line Items] |  |
Loan operations and lease operations portfolio | R$ 1,015 | R$ 956
Stage Two [Member] | Loan Operations [Member] | Stage Two Loan [Member] | Micro Small And Medium Companies [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Loan operations and lease operations portfolio | 12,222 | 13,087
Stage Two [Member] | Loan Operations [Member] | Stage Two Loan [Member] | Foreign Loans [Member] | Foreign countries [member] |  |
IfrsStatementLineItems [Line Items] |  |
Loan operations and lease operations portfolio | 14,004 | 12,077
Stage Two [Member] | Commitments To Be Released [Member] | Stage Two Loan [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Loan operations and lease operations portfolio | R$ 16,063 | R$ 14,740
Percentage of loan operations and lease operations portfolio | 14.40% | 14.00%
Stage Two [Member] | Commitments To Be Released [Member] | Stage Two Loan [Member] | Loans to corporate entities [member] |  |
IfrsStatementLineItems [Line Items] |  |
Loan operations and lease operations portfolio | R$ 60 | R$ 461
Stage Two [Member] | Commitments To Be Released [Member] | Stage Two Loan [Member] | Micro Small And Medium Companies [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Loan operations and lease operations portfolio | 1,195 | 1,216
Stage Two [Member] | Commitments To Be Released [Member] | Stage Two Loan [Member] | Foreign Loans [Member] | Foreign countries [member] |  |
IfrsStatementLineItems [Line Items] |  |
Loan operations and lease operations portfolio | 2,862 | 2,091
Stage Two [Member] | Financial guarantee contracts [member] | Stage Two Loan [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Loan operations and lease operations portfolio | R$ 1,495 | R$ 1,216
Percentage of loan operations and lease operations portfolio | 1.40% | 1.10%
Stage Two [Member] | Financial guarantee contracts [member] | Stage Two Loan [Member] | Loans to corporate entities [member] |  |
IfrsStatementLineItems [Line Items] |  |
Loan operations and lease operations portfolio | R$ 800 | R$ 146
Stage Two [Member] | Financial guarantee contracts [member] | Stage Two Loan [Member] | Micro Small And Medium Companies [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Loan operations and lease operations portfolio | 159 | 110
Stage Two [Member] | Financial guarantee contracts [member] | Stage Two Loan [Member] | Foreign Loans [Member] | Foreign countries [member] |  |
IfrsStatementLineItems [Line Items] |  |
Loan operations and lease operations portfolio | 534 | 958
Stage Three [Member] | Stage Three Loan [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Loan operations and lease operations portfolio | 58,649 | 63,514
Stage Three [Member] | Stage Three Loan [Member] | Loans to corporate entities [member] |  |
IfrsStatementLineItems [Line Items] |  |
Loan operations and lease operations portfolio | 4,887 | 7,290
Stage Three [Member] | Stage Three Loan [Member] | Micro Small And Medium Companies [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Loan operations and lease operations portfolio | 10,361 | 10,892
Stage Three [Member] | Stage Three Loan [Member] | Foreign Loans [Member] | Foreign countries [member] |  |
IfrsStatementLineItems [Line Items] |  |
Loan operations and lease operations portfolio | 11,996 | 9,483
Stage Three [Member] | Loan Operations [Member] | Stage Three Loan [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Loan operations and lease operations portfolio | R$ 55,131 | R$ 60,237
Percentage of loan operations and lease operations portfolio | 94.00% | 94.80%
Stage Three [Member] | Loan Operations [Member] | Stage Three Loan [Member] | Loans to corporate entities [member] |  |
IfrsStatementLineItems [Line Items] |  |
Loan operations and lease operations portfolio | R$ 1,852 | R$ 4,589
Stage Three [Member] | Loan Operations [Member] | Stage Three Loan [Member] | Micro Small And Medium Companies [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Loan operations and lease operations portfolio | 10,104 | 10,601
Stage Three [Member] | Loan Operations [Member] | Stage Three Loan [Member] | Foreign Loans [Member] | Foreign countries [member] |  |
IfrsStatementLineItems [Line Items] |  |
Loan operations and lease operations portfolio | 11,818 | 9,345
Stage Three [Member] | Commitments To Be Released [Member] | Stage Three Loan [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Loan operations and lease operations portfolio | R$ 443 | R$ 384
Percentage of loan operations and lease operations portfolio | 0.80% | 0.60%
Stage Three [Member] | Commitments To Be Released [Member] | Stage Three Loan [Member] | Loans to corporate entities [member] |  |
IfrsStatementLineItems [Line Items] |  |
Loan operations and lease operations portfolio | R$ 165 | R$ 35
Stage Three [Member] | Commitments To Be Released [Member] | Stage Three Loan [Member] | Micro Small And Medium Companies [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Loan operations and lease operations portfolio | 82 | 90
Stage Three [Member] | Commitments To Be Released [Member] | Stage Three Loan [Member] | Foreign Loans [Member] | Foreign countries [member] |  |
IfrsStatementLineItems [Line Items] |  |
Loan operations and lease operations portfolio | 148 | 112
Stage Three [Member] | Financial guarantee contracts [member] | Stage Three Loan [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Loan operations and lease operations portfolio | R$ 3,075 | R$ 2,893
Percentage of loan operations and lease operations portfolio | 5.20% | 4.60%
Stage Three [Member] | Financial guarantee contracts [member] | Stage Three Loan [Member] | Loans to corporate entities [member] |  |
IfrsStatementLineItems [Line Items] |  |
Loan operations and lease operations portfolio | R$ 2,870 | R$ 2,666
Stage Three [Member] | Financial guarantee contracts [member] | Stage Three Loan [Member] | Micro Small And Medium Companies [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Loan operations and lease operations portfolio | 175 | 201
Stage Three [Member] | Financial guarantee contracts [member] | Stage Three Loan [Member] | Foreign Loans [Member] | Foreign countries [member] |  |
IfrsStatementLineItems [Line Items] |  |
Loan operations and lease operations portfolio | R$ 30 | R$ 26
Total Stage One [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Percentage of loan operations and lease operations portfolio | 100.00% | 100.00%
Individuals [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Loan operations and lease operations portfolio | R$ 748,783 | R$ 675,096
Individuals [Member] | Loan Operations [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Loan operations and lease operations portfolio | 445,574 | 416,616
Individuals [Member] | Commitments To Be Released [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Loan operations and lease operations portfolio | 302,391 | 257,928
Individuals [Member] | Financial Guarantees [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Loan operations and lease operations portfolio | 818 | 552
Individuals [Member] | Stage One [Member] | Stage One Loan [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Loan operations and lease operations portfolio | 638,962 | 564,694
Individuals [Member] | Stage One [Member] | Loan Operations [Member] | Stage One Loan [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Loan operations and lease operations portfolio | 347,749 | 317,335
Individuals [Member] | Stage One [Member] | Commitments To Be Released [Member] | Stage One Loan [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Loan operations and lease operations portfolio | 290,397 | 246,809
Individuals [Member] | Stage One [Member] | Financial guarantee contracts [member] | Stage One Loan [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Loan operations and lease operations portfolio | 816 | 550
Individuals [Member] | Stage Two [Member] | Stage Two Loan [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Loan operations and lease operations portfolio | 78,416 | 74,553
Individuals [Member] | Stage Two [Member] | Loan Operations [Member] | Stage Two Loan [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Loan operations and lease operations portfolio | 66,468 | 63,579
Individuals [Member] | Stage Two [Member] | Commitments To Be Released [Member] | Stage Two Loan [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Loan operations and lease operations portfolio | 11,946 | 10,972
Individuals [Member] | Stage Two [Member] | Financial guarantee contracts [member] |  |
IfrsStatementLineItems [Line Items] |  |
Loan operations and lease operations portfolio | 2 | 2
Individuals [Member] | Stage Three [Member] | Stage Three Loan [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Loan operations and lease operations portfolio | 31,405 | 35,849
Individuals [Member] | Stage Three [Member] | Loan Operations [Member] | Stage Three Loan [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Loan operations and lease operations portfolio | 31,357 | 35,702
Individuals [Member] | Stage Three [Member] | Commitments To Be Released [Member] | Stage Three Loan [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Loan operations and lease operations portfolio | R$ 48 | R$ 147

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