XML 213 R181.htm IDEA: XBRL DOCUMENT
v3.23.1

Related parties (Details 1) - Management Members, members of the Audit Committee and the Board of Directors [Member] - BRL (R$) R$ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
IfrsStatementLineItems [Line Items] |  |  |
Compensation and benefits of key management personnel | R$ (1,005) | R$ (797) | R$ (927)
Fees [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Compensation and benefits of key management personnel | (603) | (460) | (578)
Employee profit sharing plan [member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Compensation and benefits of key management personnel | (255) | (208) | (112)
Post employment benefits [member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Compensation and benefits of key management personnel | (5) | (9) | (9)
Granting of the Share-based payment [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Compensation and benefits of key management personnel | R$ (142) | R$ (120) | R$ (228)

X
- Definition The amount of compensation to key management personnel. [Refer: Key management personnel of entity or parent [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 24 -IssueDate 2022-03-24 -Paragraph 17 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=24&code=ifrs-tx-2022-en-r&anchor=para_17&doctype=Standard -URIDate 2022-03-24 + Details
Name: | ifrs-full_KeyManagementPersonnelCompensation
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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

X
- Details
Name: | ifrs-full_SeparateManagementEntitiesAxis=itub_ManagementMembersMembersOfTheAuditCommitteeAndTheBoardOfDirectorsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=itub_FeesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=itub_EmployeeProfitSharingPlanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=itub_PostEmploymentBenefitsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=itub_GrantingOfTheSharebasedPaymentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |