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Risk and Capital Management - Additional Information (Detail) - BRL (R$) R$ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020
Disclosure of financial risk and capital management [line items] |  |
Total credit and finance lease operations | R$ 326,862.0 | R$ 271,372.0
Total assets repossessed | R$ 258.0 | 224.0
VaR calculation confidence level percentage | 99.00% |
VaR calculation period | historical period of 4 years (1000 business days |
Value at risk | R$ 696.0 | R$ 223.0
Percentage of VaR of total stockholders' equity | 0.30% | 0.20%
Funds from clients | R$ 405.2 |
Percentage of aggregate funds from customers available on demand | 37.90% |
Liquid assets | R$ 229.0 |
Percentage of financial assets | 100.00% | 100.00%
Surplus Capital in relation to the Minimum Referential Equity Required | R$ 77,490.0 |
Percentage of reinsurance premiums operations | 38.00% | 59.00%
Capital Adequcy ratio | 14.70% | 14.50%
Additional Tier I Capital, Required | R$ 34,615.0 | R$ 23,450.0
Increase Decrease in Referential Equity | 56,280.0 | 39,274.0
subordinated debt ,Tier I capital [Member] |  |
Disclosure of financial risk and capital management [line items] |  |
subordinated debt ,Tier I capital | 18,167.0 | 17,078.0
subordinated debt ,Tier II capital [Member] |  |
Disclosure of financial risk and capital management [line items] |  |
subordinated debt ,Tier I capital |  | 14,024.0
subordinated debt ,Tier II capital | 19,469.0 |
Average [Member] |  |
Disclosure of financial risk and capital management [line items] |  |
Value at risk | 441.0 | 282.0
Top of range [member] |  |
Disclosure of financial risk and capital management [line items] |  |
Value at risk | R$ 707.0 | R$ 763.0
Capital Adequcy ratio | 14.70% |
Percentage of adjusted capital ratio | 50.00% |
Percentage of fixed assets ratio |  | (24.00%)
Bottom of range [member] |  |
Disclosure of financial risk and capital management [line items] |  |
Value at risk | R$ 198.0 | R$ 166.0
Surplus Capital in relation to the Minimum Referential Equity Required |  | R$ 67,867.0
Capital Adequcy ratio |  | 0.20%
Percentage of fixed assets ratio | 16.90% |
Bottom of range [member] | BACEN |  |
Disclosure of financial risk and capital management [line items] |  |
Leverage Ratio | 3 |
Short term redeemable obligation [Member] |  |
Disclosure of financial risk and capital management [line items] |  |
Percentage of financial assets | 56.50% |
Funding [Member] |  |
Disclosure of financial risk and capital management [line items] |  |
Percentage of financial assets | 21.40% |
Total assets [Member] |  |
Disclosure of financial risk and capital management [line items] |  |
Percentage of financial assets | 16.20% |
IRB-Brasil Resseguros S.A. [Member] |  |
Disclosure of financial risk and capital management [line items] |  |
Percentage of social security operations related to reinsurance premiums | 25.00% |
Mapfre Re Do Brasil Companhia De Resseguros [Member] |  |
Disclosure of financial risk and capital management [line items] |  |
Percentage of social security operations related to reinsurance premiums | 60.00% | 45.00%
Mapfre Re Do Brasil Companhia De Resseguros [Member] | Credit risk [member] |  |
Disclosure of financial risk and capital management [line items] |  |
Percentage of reinsurance premiums operations | 36.00% | 21.00%
Austral Ressugodara SA [Member] |  |
Disclosure of financial risk and capital management [line items] |  |
Percentage of social security operations related to reinsurance premiums | 30.00% |
Austral Ressugodara SA [Member] | Credit risk [member] |  |
Disclosure of financial risk and capital management [line items] |  |
Percentage of reinsurance premiums operations | 4.00% | 20.00%
RGA Global Reinsurance [Member] |  |
Disclosure of financial risk and capital management [line items] |  |
Percentage of social security operations related to reinsurance premiums | 40.00% |
RGA Global Reinsurance [Member] | Credit risk [member] |  |
Disclosure of financial risk and capital management [line items] |  |
Percentage of reinsurance premiums operations | 22.00% |

X
- Definition The amount of contractual undiscounted cash flows in relation to lease liabilities before deducting finance charges. [Refer: Lease liabilities] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 16 -IssueDate 2021-01-01 -Paragraph 58 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2021-en-r&anchor=para_58&doctype=Standard -URIDate 2021-03-24 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Name IFRS -Number 7 -IssueDate 2021-01-01 -Paragraph B11D -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2021-en-r&anchor=para_B11D_a&doctype=Appendix&subtype=B -URIDate 2021-03-24 + Details
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- Definition The measure of a potential loss exposure as a result of future market movements, based on a specified confidence interval and measurement horizon. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IFRS -Number 7 -IssueDate 2021-01-01 -Paragraph 41 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2021-en-r&anchor=para_41&doctype=Standard -URIDate 2021-03-24 + Details
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