XML 112 R75.htm IDEA: XBRL DOCUMENT
v3.22.1

Business Development - Additional Information (Detail) R$ in Millions, $ in Millions |  |  |  |  |  |  | 12 Months Ended |  |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
May 31, 2021 BRL (R$) | May 14, 2021 BRL (R$) | Dec. 17, 2020 | Dec. 02, 2020 BRL (R$) | May 26, 2020 BRL (R$) | Jul. 07, 2016 BRL (R$) | Dec. 31, 2021 BRL (R$) shares | Dec. 31, 2020 BRL (R$) | Dec. 31, 2021 CLP ($) shares | Jul. 13, 2021 CLP ($) shares | Sep. 10, 2020 BRL (R$) | Dec. 31, 2019 BRL (R$) | Oct. 31, 2019 BRL (R$) | Dec. 31, 2015 BRL (R$)
Disclosure of business development [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Additional percentage of capital interest disposed off |  | 0.48% |  |  |  |  |  |  |  |  |  |  |  |
Cash |  |  |  |  |  |  | R$ 44,512.0 | R$ 46,224.0 |  |  |  | R$ 30,367.0 |  |
Increse in capital |  |  |  |  |  |  | R$ 90,729.0 | 97,148.0 |  |  |  | R$ 97,148.0 |  |
Shares subscribed | shares |  |  |  |  |  |  | 350,048,242,004 |  | 350,048,242,004 |  |  |  |  |
Stockholder equity value |  |  |  |  |  |  | R$ 152,864.0 | R$ 142,993.0 |  |  |  |  |  |
Itau CorpBanca [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of business development [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Additional interest on equity percentage |  |  |  |  |  |  |  |  |  |  | 1.08% |  |  |
Amount of capital |  |  |  |  |  |  |  |  |  |  | R$ 229.0 |  |  |
Ownership percentage held |  |  |  |  |  |  |  |  |  |  | 39.22% |  |  |
Percentage ownership |  |  |  |  |  |  | 56.60% |  |  |  |  |  |  |
Business combination step acquisition equity percentage |  |  |  |  |  |  |  |  |  |  | 39.22% |  |  |
Issuance of shares | shares |  |  |  |  |  |  |  |  |  | 461,111,111,111 |  |  |  |
Increse in capital | $ |  |  |  |  |  |  |  |  |  | $ 830,000 |  |  |  |
Stockholder equity value | $ |  |  |  |  |  |  |  |  | $ 630 |  |  |  |  |
XP Holding [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of business development [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage ownership |  |  |  |  |  |  |  | 41.00% |  |  |  |  |  |
Gain on losing control on ownership |  |  |  |  |  |  |  | R$ 3,996.0 |  |  |  |  |  |
Percentage of capital interests disposed |  |  | 0.07% | 4.44% |  |  |  |  |  |  |  |  |  |
Primary subscription |  |  |  | R$ 545.0 |  |  |  |  |  |  |  |  |  |
Recovery Do Brasil Consultoria [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of business development [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amount of capital |  |  |  |  |  |  |  |  |  |  |  |  |  | R$ 735.0
Percentage of interest on capital |  |  |  |  |  |  |  |  |  |  |  |  |  | 89.08%
International finance corporation [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of business development [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Additional interest on equity percentage |  |  |  |  | 4.00% | 6.92% |  |  |  |  |  |  |  |
Amount of capital |  |  |  |  | R$ 20.7 | R$ 59.0 |  |  |  |  |  |  |  |
Acquisition interest on capital |  |  |  |  | 100.00% | 96.00% |  |  |  |  |  |  |  |
ZUP IT Servicos Em Technolgia E Inovaco SA [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of business development [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership percentage held |  |  |  |  |  |  |  |  |  |  |  |  | 100.00% |
Business combination step acquisition equity percentage |  |  |  |  |  |  |  |  |  |  |  |  | 100.00% |
ZUP IT Servicos Em Technolgia E Inovaco SA [Member] | Stage one [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of business development [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amount of capital |  |  |  |  |  |  |  |  |  |  |  |  | R$ 293.0 |
Ownership percentage held |  |  |  |  |  |  |  |  |  |  |  |  | 52.96% |
Business combination step acquisition equity percentage |  |  |  |  |  |  |  |  |  |  |  |  | 52.96% |
ZUP IT Servicos Em Technolgia E Inovaco SA [Member] | Stage two [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of business development [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership percentage held |  |  |  |  |  |  |  |  |  |  |  | 19.60% |  |
Business combination step acquisition equity percentage |  |  |  |  |  |  |  |  |  |  |  | 19.60% |  |
XP INC [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of business development [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amount of capital |  | R$ 486.0 |  |  |  |  |  |  |  |  |  |  |  |
Cash | R$ 10.0 |  |  |  |  |  |  |  |  |  |  |  |  |
X Part S.A. [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of business development [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of capital interest disposed off | 40.52% |  |  |  |  |  |  |  |  |  |  |  |  |
Stockholder equity value | R$ 9,985.0 |  |  |  |  |  |  |  |  |  |  |  |  |

X
- Definition The amount of cash on hand and demand deposits. [Refer: Cash on hand] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 7 -IssueDate 2021-01-01 -Paragraph 45 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=7&code=ifrs-tx-2021-en-r&anchor=para_45&doctype=Standard -URIDate 2021-03-24 + Details
Name: | ifrs-full_Cash
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The amount of equity attributable to the owners of the parent. This specifically excludes non-controlling interest. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2021-01-01 -Paragraph 54 -Subparagraph r -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_54_r&doctype=Standard -URIDate 2021-03-24 + Details
Name: | ifrs-full_EquityAttributableToOwnersOfParent
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The fair value, at the acquisition date, of equity interests of the acquirer transferred as consideration in a business combination. [Refer: Business combinations [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 3 -IssueDate 2021-01-01 -Paragraph B64 -Subparagraph f -Clause iv -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2021-en-r&anchor=para_B64_f_iv&doctype=Appendix&subtype=B -URIDate 2021-03-24 + Details
Name: | ifrs-full_EquityInterestsOfAcquirer
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The nominal value of capital issued. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 1 -IssueDate 2021-01-01 -Paragraph 78 -Subparagraph e -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_78_e&doctype=Standard -URIDate 2021-03-24 + Details
Name: | ifrs-full_IssuedCapital
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The percentage of voting equity interests acquired in a business combination. [Refer: Business combinations [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 3 -IssueDate 2021-01-01 -Paragraph B64 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2021-en-r&anchor=para_B64_c&doctype=Appendix&subtype=B -URIDate 2021-03-24 + Details
Name: | ifrs-full_PercentageOfVotingEquityInterestsAcquired
Namespace Prefix: | ifrs-full_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition The proportion of ownership interest in an associate attributable to the entity. [Refer: Associates [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 27 -IssueDate 2021-01-01 -Paragraph 17 -Subparagraph b -Clause iii -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=27&code=ifrs-tx-2021-en-r&anchor=para_17_b_iii&doctype=Standard -URIDate 2021-03-24 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 27 -IssueDate 2021-01-01 -Paragraph 16 -Subparagraph b -Clause iii -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=27&code=ifrs-tx-2021-en-r&anchor=para_16_b_iii&doctype=Standard -URIDate 2021-03-24 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2021-01-01 -Paragraph 21 -Subparagraph a -Clause iv -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2021-en-r&anchor=para_21_a_iv&doctype=Standard -URIDate 2021-03-24 + Details
Name: | ifrs-full_ProportionOfOwnershipInterestInAssociate
Namespace Prefix: | ifrs-full_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Acquisition interest on capital. + References No definition available. + Details
Name: | itub_AcquisitionInterestOnCapital
Namespace Prefix: | itub_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Additional Interest on equity percentage. + References No definition available. + Details
Name: | itub_AdditionalInterestOnEquityPercentage
Namespace Prefix: | itub_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Additional percentage of capital interest disposed off. + References No definition available. + Details
Name: | itub_AdditionalPercentageOfCapitalInterestDisposedOff
Namespace Prefix: | itub_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Line items representing the disclosure of business development. + References No definition available. + Details
Name: | itub_DisclosureOfBusinessDevelopmentLineItems
Namespace Prefix: | itub_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Equity ownership percentage. + References No definition available. + Details
Name: | itub_EquityOwnershipPercentage
Namespace Prefix: | itub_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Gain loss on losing control ownership. + References No definition available. + Details
Name: | itub_GainLossOnLosingControlOwnership
Namespace Prefix: | itub_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Issuance of shares. + References No definition available. + Details
Name: | itub_IssuanceOfShares
Namespace Prefix: | itub_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Percentage of capital interest disposed off. + References No definition available. + Details
Name: | itub_PercentageOfCapitalInterestDisposedOff
Namespace Prefix: | itub_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Percentage of capital interests disposed off. + References No definition available. + Details
Name: | itub_PercentageOfCapitalInterestsDisposedOff
Namespace Prefix: | itub_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Primary subscription. + References No definition available. + Details
Name: | itub_PrimarySubscription
Namespace Prefix: | itub_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Shares subscribed. + References No definition available. + Details
Name: | itub_SharesSubscribed
Namespace Prefix: | itub_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | ifrs-full_BusinessCombinationsAxis=itub_ItauCorpbancaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_BusinessCombinationsAxis=itub_XPHoldingMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_BusinessCombinationsAxis=itub_RecoveryDoBrasilConsultoriaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_BusinessCombinationsAxis=itub_InternationalFinanceCorporationMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_BusinessCombinationsAxis=itub_ZupItServicosEmTechnolgiaEInovacoSaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | itub_BusinessCombinationStepAcquisitionAxis=itub_StageOneMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | itub_BusinessCombinationStepAcquisitionAxis=itub_StageTwoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_BusinessCombinationsAxis=itub_XpIncMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_BusinessCombinationsAxis=itub_XPartS.a.Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |