XML 159 R129.htm IDEA: XBRL DOCUMENT
v3.25.1

Securities sold under repurchase agreements and interbank and institutional market funds (Details 1) - BRL (R$) R$ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2024 | Dec. 31, 2023
IfrsStatementLineItems [Line Items] |  |
Interbank market funds | R$ 372,294 | R$ 328,645
Current [member] |  |
IfrsStatementLineItems [Line Items] |  |
Interbank market funds | 218,138 | 175,771
Non Current [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Interbank market funds | 154,156 | 152,874
Financial Credit Bills [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Interbank market funds | 70,083 | 81,197
Financial Credit Bills [Member] | Current [member] |  |
IfrsStatementLineItems [Line Items] |  |
Interbank market funds | 23,878 | 38,061
Financial Credit Bills [Member] | Non Current [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Interbank market funds | R$ 46,205 | 43,136
Financial Credit Bills [Member] | Bottom of range [member] |  |
IfrsStatementLineItems [Line Items] |  |
Percentage of interest on interbank market debt | 4.43% |
Financial Credit Bills [Member] | Top of range [member] |  |
IfrsStatementLineItems [Line Items] |  |
Percentage of interest on interbank market debt | 15.06% |
Real Estate Credit Bills [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Interbank market funds | R$ 52,112 | 48,955
Real Estate Credit Bills [Member] | Current [member] |  |
IfrsStatementLineItems [Line Items] |  |
Interbank market funds | 36,871 | 28,476
Real Estate Credit Bills [Member] | Non Current [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Interbank market funds | R$ 15,241 | 20,479
Real Estate Credit Bills [Member] | Bottom of range [member] |  |
IfrsStatementLineItems [Line Items] |  |
Percentage of interest on interbank market debt | 7.00% |
Real Estate Credit Bills [Member] | Top of range [member] |  |
IfrsStatementLineItems [Line Items] |  |
Percentage of interest on interbank market debt | 13.00% |
Rural Credit Bills [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Interbank market funds | R$ 49,744 | 39,072
Rural Credit Bills [Member] | Current [member] |  |
IfrsStatementLineItems [Line Items] |  |
Interbank market funds | 34,803 | 17,037
Rural Credit Bills [Member] | Non Current [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Interbank market funds | R$ 14,941 | 22,035
Rural Credit Bills [Member] | Bottom of range [member] |  |
IfrsStatementLineItems [Line Items] |  |
Percentage of interest on interbank market debt | 5.00% |
Rural Credit Bills [Member] | Top of range [member] |  |
IfrsStatementLineItems [Line Items] |  |
Percentage of interest on interbank market debt | 13.72% |
Guaranteed Real State Notes [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Interbank market funds | R$ 64,491 | 59,190
Guaranteed Real State Notes [Member] | Current [member] |  |
IfrsStatementLineItems [Line Items] |  |
Interbank market funds | 13,252 | 6,131
Guaranteed Real State Notes [Member] | Non Current [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Interbank market funds | R$ 51,239 | 53,059
Guaranteed Real State Notes [Member] | Bottom of range [member] |  |
IfrsStatementLineItems [Line Items] |  |
Percentage of interest on interbank market debt | 5.11% |
Guaranteed Real State Notes [Member] | Top of range [member] |  |
IfrsStatementLineItems [Line Items] |  |
Percentage of interest on interbank market debt | 14.00% |
Credit Facilities Available For Financing Of Imports And Exports [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Interbank market funds | R$ 117,921 | 87,144
Credit Facilities Available For Financing Of Imports And Exports [Member] | Current [member] |  |
IfrsStatementLineItems [Line Items] |  |
Interbank market funds | 102,796 | 81,594
Credit Facilities Available For Financing Of Imports And Exports [Member] | Non Current [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Interbank market funds | R$ 15,125 | 5,550
Credit Facilities Available For Financing Of Imports And Exports [Member] | Bottom of range [member] |  |
IfrsStatementLineItems [Line Items] |  |
Percentage of interest on interbank market debt | 0.00% |
Credit Facilities Available For Financing Of Imports And Exports [Member] | Top of range [member] |  |
IfrsStatementLineItems [Line Items] |  |
Percentage of interest on interbank market debt | 10.20% |
Onlending Domestic [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Interbank market funds | R$ 17,943 | 13,087
Onlending Domestic [Member] | Current [member] |  |
IfrsStatementLineItems [Line Items] |  |
Interbank market funds | 6,538 | 4,472
Onlending Domestic [Member] | Non Current [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Interbank market funds | R$ 11,405 | R$ 8,615
Onlending Domestic [Member] | Bottom of range [member] |  |
IfrsStatementLineItems [Line Items] |  |
Percentage of interest on interbank market debt | 0.00% |
Onlending Domestic [Member] | Top of range [member] |  |
IfrsStatementLineItems [Line Items] |  |
Percentage of interest on interbank market debt | 18.00% |

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

X
- References No definition available. + Details
Name: | itub_InterbankMarketDebt
Namespace Prefix: | itub_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- References No definition available. + Details
Name: | itub_PercentageOfInterestOnInterbankMarketDebt
Namespace Prefix: | itub_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | ifrs-full_PastDueStatusAxis=ifrs-full_CurrentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_PastDueStatusAxis=itub_NonCurrentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfFinancialLiabilitiesAxis=itub_FinancialCreditBillsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_RangeAxis=ifrs-full_BottomOfRangeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_RangeAxis=ifrs-full_TopOfRangeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfFinancialLiabilitiesAxis=itub_RealEstateCreditBillsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfFinancialLiabilitiesAxis=itub_RuralCreditBillsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfFinancialLiabilitiesAxis=itub_GuaranteedRealStateNotesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfFinancialLiabilitiesAxis=itub_CreditFacilitiesAvailableForFinancingOfImportsAndExportsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfFinancialLiabilitiesAxis=itub_OnlendingDomesticMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |