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Loan and Lease Operations - Summary of Loan Operations and Lease Operations by Type (Detail) - BRL (R$) R$ in Millions | Dec. 31, 2021 | Dec. 31, 2020
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Disclosure of loans and lease operations [Line Items] |  |
Loan operations and lease operations by type | R$ 822,590 | R$ 714,104
Provision for Expected Loss | (44,316) | (48,322)
Total loans and lease operations, net of Expected Credit Loss | 778,274 | 665,782
Corporate [member] |  |
Disclosure of loans and lease operations [Line Items] |  |
Loan operations and lease operations by type | 135,034 | 134,521
Micro/Small and medium companies [member] |  |
Disclosure of loans and lease operations [Line Items] |  |
Loan operations and lease operations by type | 149,970 | 121,955
Foreign [member] | Foreign loans - Latin America [member] |  |
Disclosure of loans and lease operations [Line Items] |  |
Loan operations and lease operations by type | 205,050 | 202,145
Individuals [member] |  |
Disclosure of loans and lease operations [Line Items] |  |
Loan operations and lease operations by type | 332,536 | 255,483
Individuals [member] | Vehicles [member] |  |
Disclosure of loans and lease operations [Line Items] |  |
Loan operations and lease operations by type | 29,621 | 23,290
Individuals [member] | Credit card [member] |  |
Disclosure of loans and lease operations [Line Items] |  |
Loan operations and lease operations by type | 112,809 | 87,073
Individuals [member] | Personal loan [member] |  |
Disclosure of loans and lease operations [Line Items] |  |
Loan operations and lease operations by type | 42,235 | 35,346
Individuals [member] | Payroll loans [member] |  |
Disclosure of loans and lease operations [Line Items] |  |
Loan operations and lease operations by type | 63,416 | 55,508
Individuals [member] | Mortgages [member] |  |
Disclosure of loans and lease operations [Line Items] |  |
Loan operations and lease operations by type | R$ 84,455 | R$ 54,266

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