XML 224 R192.htm IDEA: XBRL DOCUMENT
v3.23.1

Risk and Capital Management (Details 9) - BRL (R$) R$ in Millions | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | ---
IfrsStatementLineItems [Line Items] |  |
Risk factor group | R$ 734 | R$ 696
Interest rate risk [member] |  |
IfrsStatementLineItems [Line Items] |  |
Risk factor group | 1,160 | 1,257
Currency risk [member] |  |
IfrsStatementLineItems [Line Items] |  |
Risk factor group | 26 | 13
Equity price risk [member] |  |
IfrsStatementLineItems [Line Items] |  |
Risk factor group | 65 | 24
Commodity price risk [member] |  |
IfrsStatementLineItems [Line Items] |  |
Risk factor group | 10 | 4
Risk diversification effect [member] |  |
IfrsStatementLineItems [Line Items] |  |
Risk factor group | (527) | (602)
Average [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Risk factor group | 678 | 441
Average [Member] | Interest rate risk [member] |  |
IfrsStatementLineItems [Line Items] |  |
Risk factor group | 1,102 | 937
Average [Member] | Currency risk [member] |  |
IfrsStatementLineItems [Line Items] |  |
Risk factor group | 26 | 18
Average [Member] | Equity price risk [member] |  |
IfrsStatementLineItems [Line Items] |  |
Risk factor group | 27 | 42
Average [Member] | Commodity price risk [member] |  |
IfrsStatementLineItems [Line Items] |  |
Risk factor group | 4 | 4
Bottom of range [member] |  |
IfrsStatementLineItems [Line Items] |  |
Risk factor group | 494 | 198
Bottom of range [member] | Interest rate risk [member] |  |
IfrsStatementLineItems [Line Items] |  |
Risk factor group | 885 | 425
Bottom of range [member] | Currency risk [member] |  |
IfrsStatementLineItems [Line Items] |  |
Risk factor group | 9 | 10
Bottom of range [member] | Equity price risk [member] |  |
IfrsStatementLineItems [Line Items] |  |
Risk factor group | 18 | 17
Bottom of range [member] | Commodity price risk [member] |  |
IfrsStatementLineItems [Line Items] |  |
Risk factor group | 2 | 1
Top of range [member] |  |
IfrsStatementLineItems [Line Items] |  |
Risk factor group | 1,172 | 707
Top of range [member] | Interest rate risk [member] |  |
IfrsStatementLineItems [Line Items] |  |
Risk factor group | 1,751 | 1,411
Top of range [member] | Currency risk [member] |  |
IfrsStatementLineItems [Line Items] |  |
Risk factor group | 55 | 37
Top of range [member] | Equity price risk [member] |  |
IfrsStatementLineItems [Line Items] |  |
Risk factor group | 65 | 98
Top of range [member] | Commodity price risk [member] |  |
IfrsStatementLineItems [Line Items] |  |
Risk factor group | R$ 10 | R$ 8

X
- Definition The measure of a potential loss exposure as a result of future market movements, based on a specified confidence interval and measurement horizon. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IFRS -Number 7 -IssueDate 2022-03-24 -Paragraph 41 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2022-en-r&anchor=para_41&doctype=Standard -URIDate 2022-03-24 + Details
Name: | ifrs-full_ValueAtRisk
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | instant

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_TypesOfRisksAxis=ifrs-full_InterestRateRiskMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfRisksAxis=ifrs-full_CurrencyRiskMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfRisksAxis=ifrs-full_EquityPriceRiskMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfRisksAxis=ifrs-full_CommodityPriceRiskMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfRisksAxis=ifrs-full_RiskDiversificationEffectMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_RangeAxis=itub_AverageMember
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: |