XML 210 R173.htm IDEA: XBRL DOCUMENT
v3.22.1

Earnings Per Share - Summary of Earnings Per Share (Detail) - BRL (R$) R$ / shares in Units, R$ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Earnings per share [line items] |  |  |
Net income | R$ 26,760 | R$ 18,896 | R$ 27,113
Minimum non-cumulative dividends on preferred shares | (106) | (106) | (105)
Total net income available to ordinary equity owners | 26,760 | 18,896 | 27,113
Retained earnings to be distributed to common equity owners in an amount per share equal to the minimum dividend payable to preferred equity owners | R$ (109) | R$ (109) | R$ (109)
Basic earnings per share – R$ |  |  |
Preferred | 4,818,741,579 | 4,801,324,161 | 4,781,855,588
Incremental from stock options granted under our share-based payment | 54,300,535 | 41,909,674 | 45,069,519
Ordinary shares [member] |  |  |
Earnings per share [line items] |  |  |
Net income | R$ 13,571 | R$ 9,600 | R$ 13,802
Weighted average number of shares outstanding | 4,958,290,359 | 4,958,290,359 | 4,958,290,359
Total net income available to ordinary equity owners | R$ 13,571 | R$ 9,600 | R$ 13,802
Dividend on preferred shares after dilution effects | (75) | (41) | (64)
Retained earnings to be distributed, on a pro rata basis, to common and preferred equity owners: |  |  |
Retained earnings | 13,462 | 9,491 | 13,693
Net income available to ordinary equity owners considering preferred shares afterthe dilution effect | R$ 13,496 | R$ 9,559 | R$ 13,738
Basic earnings per share – R$ |  |  |
Basic earnings per share | R$ 2.74 | R$ 1.94 | R$ 2.78
Preferred | 4,958,290,359 | 4,958,290,359 | 4,958,290,359
Common | 4,958,290,359 | 4,958,290,359 | 4,958,290,359
Common | R$ 2.72 | R$ 1.93 | R$ 2.77
Preference shares [member] |  |  |
Earnings per share [line items] |  |  |
Net income | R$ 13,189 | R$ 9,296 | R$ 13,311
Weighted average number of shares outstanding | 4,818,741,579 | 4,801,324,161 | 4,781,855,588
Total net income available to ordinary equity owners | R$ 13,189 | R$ 9,296 | R$ 13,311
Dividend on preferred shares after dilution effects | 75 | 41 | 64
Retained earnings to be distributed, on a pro rata basis, to common and preferred equity owners: |  |  |
Retained earnings | 13,083 | 9,190 | 13,206
Net income available to ordinary equity owners considering preferred shares afterthe dilution effect | R$ 13,264 | R$ 9,337 | R$ 13,375
Basic earnings per share – R$ |  |  |
Basic earnings per share | R$ 2.74 | R$ 1.94 | R$ 2.78
Preferred | 4,873,042,114 | 4,843,233,835 | 4,826,925,107
Common | 4,818,741,579 | 4,801,324,161 | 4,781,855,588
Common | R$ 2.72 | R$ 1.93 | R$ 2.77

X
- Definition The weighted average number of ordinary shares outstanding plus the weighted average number of ordinary shares that would be issued on the conversion of all the dilutive potential ordinary shares into ordinary shares. [Refer: Ordinary shares [member]; Weighted average [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 33 -IssueDate 2021-01-01 -Paragraph 70 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=33&code=ifrs-tx-2021-en-r&anchor=para_70_b&doctype=Standard -URIDate 2021-03-24 + Details
Name: | ifrs-full_AdjustedWeightedAverageShares
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of profit (loss) attributable to ordinary equity holders of the parent entity (the numerator) divided by the weighted average number of ordinary shares outstanding during the period (the denominator). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 33 -IssueDate 2021-01-01 -Paragraph 66 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=33&code=ifrs-tx-2021-en-r&anchor=para_66&doctype=Standard -URIDate 2021-03-24 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 33 -IssueDate 2021-01-01 -Paragraph 67 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=33&code=ifrs-tx-2021-en-r&anchor=para_67&doctype=Standard -URIDate 2021-03-24 + Details
Name: | ifrs-full_BasicEarningsLossPerShare
Namespace Prefix: | ifrs-full_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | ifrs-full_BasicEarningsPerShareAbstract
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of profit (loss) attributable to ordinary equity holders of the parent entity (the numerator), divided by the weighted average number of ordinary shares outstanding during the period (the denominator), both adjusted for the effects of all dilutive potential ordinary shares. [Refer: Ordinary shares [member]; Weighted average [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 33 -IssueDate 2021-01-01 -Paragraph 66 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=33&code=ifrs-tx-2021-en-r&anchor=para_66&doctype=Standard -URIDate 2021-03-24 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 33 -IssueDate 2021-01-01 -Paragraph 67 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=33&code=ifrs-tx-2021-en-r&anchor=para_67&doctype=Standard -URIDate 2021-03-24 + Details
Name: | ifrs-full_DilutedEarningsLossPerShare
Namespace Prefix: | ifrs-full_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition The number of dilutive potential ordinary shares that relate to the assumed exercise of the entity's share options. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 33 -IssueDate 2021-01-01 -Paragraph 70 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=33&code=ifrs-tx-2021-en-r&anchor=para_70_b&doctype=Standard -URIDate 2021-03-24 + Details
Name: | ifrs-full_DilutiveEffectOfShareOptionsOnNumberOfOrdinaryShares
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

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_EarningsPerShareLineItems
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The profit (loss) attributable to ordinary equity holders of the parent entity, adjusted for the effects of all dilutive potential ordinary shares. [Refer: Profit (loss)] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 33 -IssueDate 2021-01-01 -Paragraph 70 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=33&code=ifrs-tx-2021-en-r&anchor=para_70_a&doctype=Standard -URIDate 2021-03-24 + Details
Name: | ifrs-full_ProfitLossAttributableToOrdinaryEquityHoldersOfParentEntityIncludingDilutiveEffects
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The profit (loss) from continuing and discontinued operations attributable to owners of the parent. [Refer: Profit (loss)] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2021-01-01 -Paragraph 81B -Subparagraph a -Clause ii -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_81B_a_ii&doctype=Standard -URIDate 2021-03-24 + Details
Name: | ifrs-full_ProfitLossAttributableToOwnersOfParent
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- References No definition available. + Details
Name: | ifrs-full_RetainedEarningsAbstract
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The number of ordinary shares outstanding at the beginning of the period, adjusted by the number of ordinary shares bought back or issued during the period multiplied by a time-weighting factor. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 33 -IssueDate 2021-01-01 -Paragraph 70 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=33&code=ifrs-tx-2021-en-r&anchor=para_70_b&doctype=Standard -URIDate 2021-03-24 + Details
Name: | ifrs-full_WeightedAverageShares
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Dividend on preferred shares after dilution effects. + References No definition available. + Details
Name: | itub_DividendOnPreferredSharesAfterDilutionEffects
Namespace Prefix: | itub_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Minimum non cumulative dividend on preferred shares. + References No definition available. + Details
Name: | itub_MinimumNonCumulativeDividendOnPreferredShares
Namespace Prefix: | itub_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Retained earnings to be distributed to common shares. + References No definition available. + Details
Name: | itub_RetainedEarningsToBeDistributedToCommonShares
Namespace Prefix: | itub_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Retained earnings to be distributed to owners of parent on pro-rata basis + References No definition available. + Details
Name: | itub_RetainedEarningsToBeDistributedToOwnersOfParentOnProRataBasis
Namespace Prefix: | itub_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | ifrs-full_ClassesOfShareCapitalAxis=ifrs-full_OrdinarySharesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfShareCapitalAxis=ifrs-full_PreferenceSharesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |