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Deposits - Summary of Breakdown of Deposits (Detail) - BRL (R$) R$ in Millions | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Disclosure of deposits [Line Items] |  |
Current | R$ 493,752 | R$ 511,015
Non-current | 356,620 | 297,995
Total | 850,372 | 809,010
Interest-bearing deposits [Member] |  |
Disclosure of deposits [Line Items] |  |
Current | 334,808 | 376,139
Non-current | 356,620 | 297,995
Total | 691,428 | 674,134
Time deposits [Member] |  |
Disclosure of deposits [Line Items] |  |
Current | 140,717 | 193,484
Non-current | 356,334 | 297,750
Total | 497,051 | 491,234
Interbank [member] |  |
Disclosure of deposits [Line Items] |  |
Current | 3,490 | 3,185
Non-current | 286 | 245
Total | 3,776 | 3,430
Savings deposits [member] |  |
Disclosure of deposits [Line Items] |  |
Current | 190,601 | 179,470
Total | 190,601 | 179,470
Non-interest bearing deposits [Member] |  |
Disclosure of deposits [Line Items] |  |
Current | 158,944 | 134,876
Total | 158,944 | 134,876
Demand deposits [Member] |  |
Disclosure of deposits [Line Items] |  |
Current | 158,116 | 134,805
Total | 158,116 | 134,805
Other [Member] |  |
Disclosure of deposits [Line Items] |  |
Current | 828 | 71
Total | R$ 828 | R$ 71

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- Definition The amount of current deposits from customers. [Refer: Deposits from customers] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2021-01-01 -Paragraph 55 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_55&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition The amount of deposit liabilities from customers held by the entity. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2021-01-01 -Paragraph 55 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_55&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition The amount of non-current deposits from customers. [Refer: Deposits from customers] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2021-01-01 -Paragraph 55 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_55&doctype=Standard -URIDate 2021-03-24 + Details
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