XML 219 R182.htm IDEA: XBRL DOCUMENT
v3.22.1

Post-Employment Benefits - Summary of Maturity Profile of Defined Benefit Liabilities (Detail) R$ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2021 BRL (R$)
Disclosure of net defined benefit liability (asset) [line items] |
2022 | R$ 1,784
2023 | 1,714
2024 | 1,767
2025 | 1,713
2026 | 1,776
2027 to 2031 | R$ 9,612
Pension plan - FIU [member] |
Disclosure of net defined benefit liability (asset) [line items] |
Duration | 9 years 9 months 18 days
2022 | R$ 1,050
2023 | 943
2024 | 984
2025 | 1,025
2026 | 1,072
2027 to 2031 | R$ 5,862
Pension plan - FUNBEP [member] |
Disclosure of net defined benefit liability (asset) [line items] |
Duration | 9 years 1 month 6 days
2022 | R$ 594
2023 | 614
2024 | 634
2025 | 652
2026 | 667
2027 to 2031 | R$ 3,541
Other post employment benefits [member] |
Disclosure of net defined benefit liability (asset) [line items] |
Duration | 7 years 1 month 2 days
2022 | R$ 140
2023 | 157
2024 | 149
2025 | 36
2026 | 37
2027 to 2031 | R$ 209

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

X
- Definition Defined benefit plan expected future benefit payments in year five. + References No definition available. + Details
Name: | itub_DefinedBenefitPlanExpectedFutureBenefitPaymentYearFive
Namespace Prefix: | itub_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Defined benefit plan expected future benefit payments year four. + References No definition available. + Details
Name: | itub_DefinedBenefitPlanExpectedFutureBenefitPaymentYearFour
Namespace Prefix: | itub_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Defined benefit plan expected future benefit payments year three + References No definition available. + Details
Name: | itub_DefinedBenefitPlanExpectedFutureBenefitPaymentYearThree
Namespace Prefix: | itub_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Defined benefit plan expected future benefit payments year two. + References No definition available. + Details
Name: | itub_DefinedBenefitPlanExpectedFutureBenefitPaymentYearTwo
Namespace Prefix: | itub_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Defined benefit plan expected future benefit payments next twelve months. + References No definition available. + Details
Name: | itub_DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths1
Namespace Prefix: | itub_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Defined benefit plan expected future benefit payments years six and there after. + References No definition available. + Details
Name: | itub_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearsSixAndThereAfter
Namespace Prefix: | itub_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Defined benefit plan obligation average duration. + References No definition available. + Details
Name: | itub_DefinedBenefitPlanObligationAverageDuration
Namespace Prefix: | itub_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | ifrs-full_DefinedBenefitPlansAxis=itub_FundacaoItauUnibancoPrevidenciaComplementarMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_DefinedBenefitPlansAxis=itub_FunbepFundoDePensaoMultipatrocinadoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_DefinedBenefitPlansAxis=itub_OtherPostEmploymentBenefitsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |