XML 220 R188.htm IDEA: XBRL DOCUMENT
v3.23.1

Risk and Capital Management (Details 5) - BRL (R$) R$ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021
IfrsStatementLineItems [Line Items] |  |
Loan operations and lease operations portfolio | R$ 909,422 | R$ 822,590
Percentage of loan operations and lease operations portfolio | 100.00% | 100.00%
Lower risk [member] |  |
IfrsStatementLineItems [Line Items] |  |
Loan operations and lease operations portfolio | R$ 768,126 | R$ 704,867
Medium [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Loan operations and lease operations portfolio | 71,603 | 58,219
Higher risk [member] |  |
IfrsStatementLineItems [Line Items] |  |
Loan operations and lease operations portfolio | 10,525 | 8,984
Credit Impaired [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Loan operations and lease operations portfolio | 59,168 | 50,520
Stage One [member] |  |
IfrsStatementLineItems [Line Items] |  |
Loan operations and lease operations portfolio | R$ 763,552 | R$ 702,164
Percentage of loan operations and lease operations portfolio | 84.00% | 85.40%
Stage One [member] | Lower risk [member] |  |
IfrsStatementLineItems [Line Items] |  |
Loan operations and lease operations portfolio | R$ 705,625 | R$ 662,839
Stage One [member] | Medium [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Loan operations and lease operations portfolio | 57,508 | 38,980
Stage One [member] | Higher risk [member] |  |
IfrsStatementLineItems [Line Items] |  |
Loan operations and lease operations portfolio | 419 | 345
Stage Two [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Loan operations and lease operations portfolio | R$ 86,702 | R$ 69,906
Percentage of loan operations and lease operations portfolio | 9.50% | 8.50%
Stage Two [Member] | Lower risk [member] |  |
IfrsStatementLineItems [Line Items] |  |
Loan operations and lease operations portfolio | R$ 62,501 | R$ 42,028
Stage Two [Member] | Medium [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Loan operations and lease operations portfolio | 14,095 | 19,239
Stage Two [Member] | Higher risk [member] |  |
IfrsStatementLineItems [Line Items] |  |
Loan operations and lease operations portfolio | 10,106 | 8,639
Stage three [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Loan operations and lease operations portfolio | R$ 59,168 | R$ 50,520
Percentage of loan operations and lease operations portfolio | 6.50% | 6.10%
Stage three [Member] | Credit Impaired [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Loan operations and lease operations portfolio | R$ 59,168 | R$ 50,520

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

X
- Definition Loan operations and lease operations portfolio gross. + References No definition available. + Details
Name: | itub_LoanOperationsAndLeaseOperationsPortfolioGross
Namespace Prefix: | itub_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Percentage of loan operations and lease operations portfolio. + References No definition available. + Details
Name: | itub_PercentageOfLoanOperationsAndLeaseOperationsPortfolio
Namespace Prefix: | itub_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | ifrs-full_InternalCreditGradesAxis=itub_LowerRiskMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_InternalCreditGradesAxis=itub_MediumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_InternalCreditGradesAxis=itub_HigherRiskMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_InternalCreditGradesAxis=itub_CreditImpairedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

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

X
- Details
Name: | ifrs-full_ImpairmentOfFinancialAssetsAxis=itub_StageThreeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |