XML 187 R150.htm IDEA: XBRL DOCUMENT
v3.22.1

Stockholders' equity - Schedule of Stockholders' Compensation (Detail) - BRL (R$) R$ / shares in Units, R$ in Millions |  | 11 Months Ended | 12 Months Ended
--- | --- | --- | ---
Oct. 14, 2021 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Disclosure of fair value measurement of liabilities [line items] |  |  |  |  |  |
Dividends |  |  |  | R$ 0.0150 | R$ 0.0150 | R$ 0.0150
Dividends |  |  |  | 0.0150 | 0.0150 | 0.0150
Interest on capital |  |  |  | 0.0150 |  |
Dividends provision |  |  |  |  |  | 0.7869
Interest on capital |  |  |  |  | R$ 0.0450 |
Interest on capital |  |  |  |  |  | 0.0376
Interest on capital |  |  |  | R$ 0.0116 |  |
Identified in Profit Reserve In Stockholders' Equity |  |  |  |  |  | R$ 1.0067
Paid / prepaid, Gross |  |  |  | R$ 4,179 | R$ 2,127 | R$ 9,274
Dividends-paid, Gross |  |  |  |  |  | 7,668
Dividend Or Interest On Capital Payable Per Share |  |  |  |  | R$ 0.1394 |
Accrued (Recorded in Other Liabilities) |  | R$ 2,861 | R$ 512 | 2,894 | R$ 2,861 | 512
Interest on capital |  |  |  | 173 |  |
Interest on capital-paid |  |  |  | 2,540 | 517 | 366
Interest on capital Value |  |  |  | 134 |  |
Identified in Profit Reserve In Stockholders' Equity |  |  |  |  |  | 9,811
Declared (Recorded in Other Liabilities) |  |  |  |  | 146 | 146
Dividends Or Interest On Capital |  |  |  |  | 1,601 |
Total,Gross |  |  |  | 7,073 | 4,988 | 19,597
Accrued (Recorded in Other Liabilities) |  | (407) | (55) | (435) | (407) | (55)
Paid / prepaid |  |  |  | (407) | (78) |
Interest on capital, WHT |  |  |  | (26) |  |
Interest on capital, WHT |  |  |  | (381) | (78) | (55)
Interest on capital, WHT |  |  |  | (21) |  |
Dividend or Interest on capital tax WHT |  |  |  |  | (240) |
Identified in Profit Reserve In Stockholders' Equity |  |  |  |  |  | (765)
Total, WHT |  |  |  | (842) | (485) | (820)
Accrued (Recorded in Other Liabilities) |  | 2,454 | 457 | 2,459 | 2,454 | 457
Paid / prepaid |  |  |  | 3,772 | 2,049 | 9,274
Dividends - 1 monthly installment paid |  |  |  |  | 146 | 146
Dividends - 11 monthly installments paid from February to December |  |  |  | 1,596 | 2,261 | 9,697
Interest on capital |  |  |  | 113 |  |
Interest on capital - paid |  |  |  | 147 |  |
Interest on capital - paid | R$ 2,199 |  |  |  | 439 |
Interest on capital - credited |  |  |  |  |  | 311
Identified in Profit Reserve In Stockholders' Equity |  |  |  |  |  | 9,046
Total |  | 4,503 | 18,777 | R$ 6,231 | 4,503 | 18,777
Dividends or Interest on capital |  |  |  |  | R$ 1,361 |
Interest On Capital One [Member] |  |  |  |  |  |
Disclosure of fair value measurement of liabilities [line items] |  |  |  |  |  |
Interest on capital |  |  |  | R$ 0.0150 |  |
Interest on capital |  |  |  | R$ 0.2207 |  |
Interest on capital |  |  |  |  | R$ 0.0544 |
Interest on capital |  |  |  | R$ 173 |  |
Interest on capital-paid |  |  |  |  | R$ 624 |
Interest on capital, WHT |  |  |  | (26) |  |
Interest on capital, WHT |  |  |  |  | (93) |
Dividends - 11 monthly installments paid from February to December |  | R$ 1,610 | R$ 1,606 | 1,466 | 1,610 | R$ 1,606
Interest on capital - paid |  |  |  | 147 |  |
Interest on capital - paid |  |  |  | R$ 2,159 | R$ 531 |
Interest On Capital Two [Member] |  |  |  |  |  |
Disclosure of fair value measurement of liabilities [line items] |  |  |  |  |  |
Interest on capital |  |  |  | R$ 0.2249 | R$ 0.0426 |
Interest on capital-paid |  |  |  | R$ 2,587 | R$ 490 |
Interest on capital, WHT |  |  |  | (388) | (74) |
Interest on capital - paid |  |  |  | R$ 2,199 | R$ 416 |

X
- Definition The amount of current dividend payables. [Refer: Dividend payables] + 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
Name: | ifrs-full_CurrentDividendPayables
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table. + References No definition available. + Details
Name: | ifrs-full_DisclosureOfFairValueMeasurementOfLiabilitiesLineItems
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of dividends recognised as distributions to owners. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2021-01-01 -Paragraph 107 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_107&doctype=Standard -URIDate 2021-03-24 + Details
Name: | ifrs-full_DividendsPaid
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The amount of dividends paid per ordinary share. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 34 -IssueDate 2021-01-01 -Paragraph 16A -Subparagraph f -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=34&code=ifrs-tx-2021-en-r&anchor=para_16A_f&doctype=Standard -URIDate 2021-03-24 + Details
Name: | ifrs-full_DividendsPaidOrdinarySharesPerShare
Namespace Prefix: | ifrs-full_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Current Dividend Payables Gross. + References No definition available. + Details
Name: | itub_CurrentDividendPayablesGross
Namespace Prefix: | itub_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Current Dividend Payables With holdingTax. + References No definition available. + Details
Name: | itub_CurrentDividendPayablesWithHoldingtax
Namespace Prefix: | itub_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Dividend And Interest On Capital Paid + References No definition available. + Details
Name: | itub_DividendAndInterestOnCapitalPaid
Namespace Prefix: | itub_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Dividend or interest on capital payable per share. + References No definition available. + Details
Name: | itub_DividendOrInterestOnCapitalPayablePerShare
Namespace Prefix: | itub_
Data Type: | dtr-types:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Dividend or interest on capital tax witheld. + References No definition available. + Details
Name: | itub_DividendOrInterestOnCapitalTaxWitheld
Namespace Prefix: | itub_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Dividends and interest on shareholder's equity payable. + References No definition available. + Details
Name: | itub_DividendsAndInterestOnShareholderEquityPayable
Namespace Prefix: | itub_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Dividends Or Interest On Capital + References No definition available. + Details
Name: | itub_DividendsOrInterestOnCapital
Namespace Prefix: | itub_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Dividends or interest on capital recognised as distributions to owners of parent relating to prior years gross. + References No definition available. + Details
Name: | itub_DividendsOrInterestOnCapitalRecognisedAsDistributionsToOwnersOfParentRelatingToPriorYearsGross
Namespace Prefix: | itub_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Dividends or interest on capital recognised as distributions to owners of parent relating to prior years withholding tax. + References No definition available. + Details
Name: | itub_DividendsOrInterestOnCapitalRecognisedAsDistributionsToOwnersOfParentRelatingToPriorYearsWithholdingTax
Namespace Prefix: | itub_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Dividends paid and prepaid. + References No definition available. + Details
Name: | itub_DividendsPaidAndPrepaid
Namespace Prefix: | itub_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Dividends paid and prepaid gross. + References No definition available. + Details
Name: | itub_DividendsPaidAndPrepaidGross
Namespace Prefix: | itub_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Dividends paid and prepaid withholding tax. + References No definition available. + Details
Name: | itub_DividendsPaidAndPrepaidWithholdingTax
Namespace Prefix: | itub_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Dividends paid gross. + References No definition available. + Details
Name: | itub_DividendsPaidGross
Namespace Prefix: | itub_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Dividends provided for recorded in other liabilities. + References No definition available. + Details
Name: | itub_DividendsProvidedForRecordedInOtherLiabilities
Namespace Prefix: | itub_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Dividends provided for recorded in other liabilities gross. + References No definition available. + Details
Name: | itub_DividendsProvidedForRecordedInOtherLiabilitiesGross
Namespace Prefix: | itub_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Dividends Provision Per Share + References No definition available. + Details
Name: | itub_DividendsProvisionPerShare
Namespace Prefix: | itub_
Data Type: | dtr-types:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Identified In Profit Reserve In Gross Value . + References No definition available. + Details
Name: | itub_IdentifiedInProfitReserveInGrossValue
Namespace Prefix: | itub_
Data Type: | dtr-types:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Identified In Profit Reserve In Stockholders Equity. + References No definition available. + Details
Name: | itub_IdentifiedInProfitReserveInStockholdersEquity
Namespace Prefix: | itub_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Identified In Profit Reserve In Stockholders Equity Gross. + References No definition available. + Details
Name: | itub_IdentifiedInProfitReserveInStockholdersEquityGross
Namespace Prefix: | itub_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Identified In Profit Reserve In Stockholders Equity With holding tax. + References No definition available. + Details
Name: | itub_IdentifiedInProfitReserveInStockholdersEquityWithHoldingTax
Namespace Prefix: | itub_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Interest on capital monthly installment paid and prepaid. + References No definition available. + Details
Name: | itub_InterestOnCapitalMonthlyInstallmentPaidAndPrepaid
Namespace Prefix: | itub_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Interest on capital monthly installment paid and prepaid gross. + References No definition available. + Details
Name: | itub_InterestOnCapitalMonthlyInstallmentPaidAndPrepaidGross
Namespace Prefix: | itub_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Interest on capital monthly installment paid and prepaid withholding tax. + References No definition available. + Details
Name: | itub_InterestOnCapitalMonthlyInstallmentPaidAndPrepaidWithholdingTax
Namespace Prefix: | itub_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Interest on capital monthly installment paid per share. + References No definition available. + Details
Name: | itub_InterestOnCapitalMonthlyInstallmentPaidPerShare
Namespace Prefix: | itub_
Data Type: | dtr-types:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Interest on capital paid. + References No definition available. + Details
Name: | itub_InterestOnCapitalPaid
Namespace Prefix: | itub_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Interest on capital paid and prepaid. + References No definition available. + Details
Name: | itub_InterestOnCapitalPaidAndPrepaid
Namespace Prefix: | itub_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Interest on capital paid and prepaid gross. + References No definition available. + Details
Name: | itub_InterestOnCapitalPaidAndPrepaidGross
Namespace Prefix: | itub_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Interest on capital paid and prepaid withholding tax. + References No definition available. + Details
Name: | itub_InterestOnCapitalPaidAndPrepaidWithholdingTax
Namespace Prefix: | itub_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Interest on capital paid per share. + References No definition available. + Details
Name: | itub_InterestOnCapitalPaidPerShare
Namespace Prefix: | itub_
Data Type: | dtr-types:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Interest on capital payable per share. + References No definition available. + Details
Name: | itub_InterestOnCapitalPayablePerShare
Namespace Prefix: | itub_
Data Type: | dtr-types:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Interest on capital provided for recorded in other liabilities. + References No definition available. + Details
Name: | itub_InterestOnCapitalProvidedForRecordedInOtherLiabilities
Namespace Prefix: | itub_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Interest on capital tax witheld. + References No definition available. + Details
Name: | itub_InterestOnCapitalTaxWitheld
Namespace Prefix: | itub_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Interest On Capital To Be PaidIin Future Paid Per Share. + References No definition available. + Details
Name: | itub_InterestOnCapitalToBePaidiinFuturePaidPerShare
Namespace Prefix: | itub_
Data Type: | dtr-types:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Interest on capital value. + References No definition available. + Details
Name: | itub_InterestOnCapitalValue
Namespace Prefix: | itub_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | ifrs-full_ClassesOfLiabilitiesAxis=itub_InterestOnCapitalOneMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfLiabilitiesAxis=itub_InterestOnCapitalTwoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |