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v3.22.1

Supplementary information - Additional Information (Detail) - BRL (R$) R$ in Millions | 1 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Mar. 31, 2020 | Dec. 31, 2021 | Dec. 31, 2020
Disclosure of assets and liabilities according to their remaining contractual maturities [Line Items] |  |  |
Maximum number of grace days allowed in agreement | 60 days |  |
Percentage of decrease in application of renegotiation |  | 5.40% |
Increase in allowance for loan losses |  | R$ 44,316 |
Donations and subsidies expense |  | R$ 1,000 |
Bottom of range [member] |  |  |
Disclosure of assets and liabilities according to their remaining contractual maturities [Line Items] |  |  |
Number of grace days extended during agreement | 120 days |  |
Percentage of provisions coverage in loan portfolio |  | 193.00% |
Percentage of securities portfolio in market component | (1.30%) |  |
Top of range [member] |  |  |
Disclosure of assets and liabilities according to their remaining contractual maturities [Line Items] |  |  |
Number of grace days extended during agreement | 180 days |  |
Percentage of provisions coverage in loan portfolio |  |  | 255.00%
Percentage of provision posted during year |  | 8.30% |
Expenses related to credit life and life insurance |  | R$ 361 |
PESE Pronampe PeacFGI and CGPE programs [member] |  |  |
Disclosure of assets and liabilities according to their remaining contractual maturities [Line Items] |  |  |
Payment made for development of programs |  | 21,492 |
BACEN [member] |  |  |
Disclosure of assets and liabilities according to their remaining contractual maturities [Line Items] |  |  |
Payments for development project expenditure |  | R$ 30,547 |

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- Definition The amount of expense arising from donations and subsidies. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2021-01-01 -Paragraph 112 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_112_c&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition The increase (decrease) in the allowance account used to record the impairment of financial assets due to credit losses. [Refer: Financial assets; Allowance account for credit losses of 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 The cash outflow for expenditure related to development projects. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 7 -IssueDate 2021-01-01 -Paragraph 16 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=7&code=ifrs-tx-2021-en-r&anchor=para_16&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition Expenses related to credit life and life insurance. + References No definition available. + Details
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- Definition Number of grace days allowed in agreement. + References No definition available. + Details
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