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Loan and Lease Operations - Summary of Loan Operations and Lease Operations by Type (Parenthetical) (Detail) - BRL (R$) R$ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Disclosure of loans and lease operations [Line Items] |  |  |
Provision for Expected Loss | R$ (41,079) | R$ (47,051) |
Commitments released | (4,433) | (3,485) | R$ (3,303)
Financial guarantees pledged [member] |  |  |
Disclosure of loans and lease operations [Line Items] |  |  |
Provision for Expected Loss | R$ (767) | R$ (907) |

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- Definition The amount of an allowance account used to record impairments to financial assets due to credit losses. [Refer: Financial assets] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Note Expiry date 2023-01-01 -Name IFRS -Number 7 -IssueDate 2021-01-01 -Paragraph 16 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2017-en-b&anchor=para_16&doctype=Standard&book=b -URIDate 2021-03-24 + Details
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- Definition Disclosure of loans and lease operations + References No definition available. + Details
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- Definition Expected loan losses commitments released + References No definition available. + Details
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- Details
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