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Deposits - Summary of Breakdown of Deposits (Detail) - BRL (R$) R$ in Millions | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | ---
Disclosure of deposits [Line Items] |  |
Current | R$ 334,197 | R$ 307,832
Non-current | 172,863 | 155,592
Total | 507,060 | 463,424
Interest-bearing deposits [Member] |  |
Disclosure of deposits [Line Items] |  |
Current | 251,882 | 235,248
Non-current | 172,863 | 155,592
Total | 424,745 | 390,840
Time deposits [Member] |  |
Disclosure of deposits [Line Items] |  |
Current | 104,458 | 95,914
Non-current | 172,708 | 155,386
Total | 277,166 | 251,300
Interbank [member] |  |
Disclosure of deposits [Line Items] |  |
Current | 2,866 | 2,469
Non-current | 155 | 206
Total | 3,021 | 2,675
Savings deposits [member] |  |
Disclosure of deposits [Line Items] |  |
Current | 144,558 | 136,865
Total | 144,558 | 136,865
Non-interest bearing deposits [Member] |  |
Disclosure of deposits [Line Items] |  |
Current | 82,315 | 72,584
Total | 82,315 | 72,584
Demand deposits [Member] |  |
Disclosure of deposits [Line Items] |  |
Current | 82,306 | 72,581
Total | 82,306 | 72,581
Other [Member] |  |
Disclosure of deposits [Line Items] |  |
Current | 9 | 3
Total | R$ 9 | R$ 3

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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 2019-01-01 -Paragraph 55 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_55&doctype=Standard -URIDate 2019-03-27 + 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 2019-01-01 -Paragraph 55 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_55&doctype=Standard -URIDate 2019-03-27 + 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 2019-01-01 -Paragraph 55 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_55&doctype=Standard -URIDate 2019-03-27 + Details
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