XML 175 R143.htm IDEA: XBRL DOCUMENT
v3.23.1

Interest and similar income and expenses and income of financial assets and liabilities at fair value through profit or loss (Details 2) - BRL (R$) R$ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
IfrsStatementLineItems [Line Items] |  |  |
Income of financial assets and liabilities at fair value through profit or loss | R$ 34,173 | R$ 16,678 | R$ 6,553
Derivatives [member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Income of financial assets and liabilities at fair value through profit or loss | 3,477 | 9,716 | (9,393)
Financial Assets Designated At Fair Value Through Profit Or Loss Equity Securities [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Income of financial assets and liabilities at fair value through profit or loss | 660 | (483) | (118)
Financial liabilities at fair value through profit or loss, category [member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Income of financial assets and liabilities at fair value through profit or loss |  |  | (9)
Securities [member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Income of financial assets and liabilities at fair value through profit or loss | 29,730 | 7,439 | 16,035
Other Financial Assets at Fair Value Through Profit or Loss [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Income of financial assets and liabilities at fair value through profit or loss | 1,800 | 838 |
Financial liabilities at fair value through profit or loss, category [member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Income of financial assets and liabilities at fair value through profit or loss | (1,535) | (843) |
Financial Liability Designated At Fair Value [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Income of financial assets and liabilities at fair value through profit or loss | R$ 41 | R$ 11 | R$ 38

X
- Definition Adjustments for gains (losses) on changes in the fair value of derivatives to reconcile profit (loss) to net cash flow from (used in) operating activities. [Refer: At fair value [member]; Derivatives [member]; Profit (loss)] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 7 -IssueDate 2022-03-24 -Paragraph 20 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=7&code=ifrs-tx-2022-en-r&anchor=para_20&doctype=Standard -URIDate 2022-03-24 + Details
Name: | ifrs-full_AdjustmentsForGainsLossesOnChangeInFairValueOfDerivatives
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
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_ClassesOfFinancialAssetsAxis=ifrs-full_DerivativesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfFinancialAssetsAxis=itub_FinancialAssetsDesignatedAtFairValueThroughProfitOrLossEquitySecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfFinancialAssetsAxis=ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLossCategoryMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CategoriesOfFinancialAssetsAxis=itub_SecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CategoriesOfFinancialAssetsAxis=itub_OtherFinancialAssetsAtFairValueThroughProfitOrLossMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CategoriesOfFinancialAssetsAxis=ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLossCategoryMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CategoriesOfFinancialAssetsAxis=itub_FinancialLiabilityDesignatedAtFairValueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |