XML 111 R74.htm IDEA: XBRL DOCUMENT
v3.22.1

Significant Accounting Policies - Summary of Consolidated Companies (Detail) | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020
Country of domicile [member] | Banco Itau B B A [Member] |  |
Disclosure of subsidiaries [line items] |  |
Incorporation country | Brazil |
Activity | Financial institution |
Interest in voting capital | 100.00% | 100.00%
Interest in total capital | 100.00% | 100.00%
Country of domicile [member] | Banco Itau Consignado S.A. [Member] |  |
Disclosure of subsidiaries [line items] |  |
Incorporation country | Brazil |
Activity | Financial institution |
Interest in voting capital | 100.00% | 100.00%
Interest in total capital | 100.00% | 100.00%
Country of domicile [member] | Banco Itaucard S.A [Member] |  |
Disclosure of subsidiaries [line items] |  |
Incorporation country | Brazil |
Activity | Financial institution |
Interest in voting capital | 100.00% | 100.00%
Interest in total capital | 100.00% | 100.00%
Country of domicile [member] | Banco Itauleasing S.A. [Member] |  |
Disclosure of subsidiaries [line items] |  |
Incorporation country | Brazil |
Activity | Financial institution |
Interest in voting capital | 100.00% | 100.00%
Interest in total capital | 100.00% | 100.00%
Country of domicile [member] | Cia. Itau de Capitalizacao [Member] |  |
Disclosure of subsidiaries [line items] |  |
Incorporation country | Brazil |
Activity | Premium Bonds |
Interest in voting capital | 100.00% | 100.00%
Interest in total capital | 100.00% | 100.00%
Country of domicile [member] | Dibens Leasing S.A. - Arrendamento Mercantil [Member] |  |
Disclosure of subsidiaries [line items] |  |
Incorporation country | Brazil |
Activity | Leasing |
Interest in voting capital | 100.00% | 100.00%
Interest in total capital | 100.00% | 100.00%
Country of domicile [member] | Financeira Itau CBD S.A. Credito, Financiamento e Investimento [Member] |  |
Disclosure of subsidiaries [line items] |  |
Incorporation country | Brazil |
Activity | Consumer finance credit |
Interest in voting capital | 50.00% | 50.00%
Interest in total capital | 50.00% | 50.00%
Country of domicile [member] | Hipercard Banco Multiplo S.A. [Member] |  |
Disclosure of subsidiaries [line items] |  |
Incorporation country | Brazil |
Activity | Financial institution |
Interest in voting capital | 100.00% | 100.00%
Interest in total capital | 100.00% | 100.00%
Country of domicile [member] | Itauseg Seguradora S.A. [Member] |  |
Disclosure of subsidiaries [line items] |  |
Incorporation country | Brazil |
Activity | Insurance |
Interest in voting capital | 100.00% | 100.00%
Interest in total capital | 100.00% | 100.00%
Country of domicile [member] | Itau Corretora de Valores S.A. [Member] |  |
Disclosure of subsidiaries [line items] |  |
Incorporation country | Brazil |
Activity | Securities Broker |
Interest in voting capital | 100.00% | 100.00%
Interest in total capital | 100.00% | 100.00%
Country of domicile [member] | Itau Seguros S.A. [Member] |  |
Disclosure of subsidiaries [line items] |  |
Incorporation country | Brazil |
Activity | Insurance |
Interest in voting capital | 100.00% | 100.00%
Interest in total capital | 100.00% | 100.00%
Country of domicile [member] | Itau Unibanco SA [Member] |  |
Disclosure of subsidiaries [line items] |  |
Incorporation country | Brazil |
Activity | Financial institution |
Interest in voting capital | 100.00% | 100.00%
Interest in total capital | 100.00% | 100.00%
Country of domicile [member] | Itau Vida e Previdencia S.A. [Member] |  |
Disclosure of subsidiaries [line items] |  |
Incorporation country | Brazil |
Activity | Pension plan |
Interest in voting capital | 100.00% | 100.00%
Interest in total capital | 100.00% | 100.00%
Country of domicile [member] | Luizacred S.A. Sociedade de Credito, Financiamento e Investimento [Member] |  |
Disclosure of subsidiaries [line items] |  |
Incorporation country | Brazil |
Activity | Consumer finance credit |
Interest in voting capital | 50.00% | 50.00%
Interest in total capital | 50.00% | 50.00%
Country of domicile [member] | Redecard Instituio de Pagamento S.A. [Member] |  |
Disclosure of subsidiaries [line items] |  |
Incorporation country | Brazil |
Activity | Acquirer |
Interest in voting capital | 100.00% | 100.00%
Interest in total capital | 100.00% | 100.00%
Foreign [member] | Itau Corpbanca Colombia S.A. [Member] |  |
Disclosure of subsidiaries [line items] |  |
Functional currency | Colombian peso |
Incorporation country | Colombia |
Activity | Financial institution |
Interest in voting capital | 49.30% | 34.16%
Interest in total capital | 49.30% | 34.16%
Foreign [member] | Banco Itau Argentina S.A. [Member] |  |
Disclosure of subsidiaries [line items] |  |
Functional currency | Argentinian peso |
Incorporation country | Argentina |
Activity | Financial institution |
Interest in voting capital | 100.00% | 100.00%
Interest in total capital | 100.00% | 100.00%
Foreign [member] | Banco Itau Paraguay S.A. [Member] |  |
Disclosure of subsidiaries [line items] |  |
Functional currency | Guarani |
Incorporation country | Paraguay |
Activity | Financial institution |
Interest in voting capital | 100.00% | 100.00%
Interest in total capital | 100.00% | 100.00%
Foreign [member] | Banco Itau (Suisse) SA [Member] |  |
Disclosure of subsidiaries [line items] |  |
Functional currency | Swiss franc |
Incorporation country | Switzerland |
Activity | Financial institution |
Interest in voting capital | 100.00% | 100.00%
Interest in total capital | 100.00% | 100.00%
Foreign [member] | Banco Itau Uruguay S.A. [Member] |  |
Disclosure of subsidiaries [line items] |  |
Functional currency | Uruguayan peso |
Incorporation country | Uruguay |
Activity | Financial institution |
Interest in voting capital | 100.00% | 100.00%
Interest in total capital | 100.00% | 100.00%
Foreign [member] | Itau Bank, Ltd. [Member] |  |
Disclosure of subsidiaries [line items] |  |
Functional currency | Real |
Incorporation country | Cayman Islands |
Activity | Financial institution |
Interest in voting capital | 100.00% | 100.00%
Interest in total capital | 100.00% | 100.00%
Foreign [member] | Itau BBA International plc [Member] |  |
Disclosure of subsidiaries [line items] |  |
Functional currency | US Dollar |
Incorporation country | United Kingdom |
Activity | Financial institution |
Interest in voting capital | 100.00% | 100.00%
Interest in total capital | 100.00% | 100.00%
Foreign [member] | Itau BBA USA Securities Inc. [Member] |  |
Disclosure of subsidiaries [line items] |  |
Functional currency | Real |
Incorporation country | United States |
Activity | Securities Broker |
Interest in voting capital | 100.00% | 100.00%
Interest in total capital | 100.00% | 100.00%
Foreign [member] | Itau CorpBanca [Member] |  |
Disclosure of subsidiaries [line items] |  |
Functional currency | Chilean peso |
Incorporation country | Chile |
Activity | Financial institution |
Interest in voting capital | 56.60% | 39.22%
Interest in total capital | 56.60% | 39.22%

X
- Definition The country in which a subsidiary of the entity is incorporated. [Refer: Subsidiaries [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 27 -IssueDate 2021-01-01 -Paragraph 16 -Subparagraph b -Clause ii -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=27&code=ifrs-tx-2021-en-r&anchor=para_16_b_ii&doctype=Standard -URIDate 2021-03-24 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 27 -IssueDate 2021-01-01 -Paragraph 17 -Subparagraph b -Clause ii -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=27&code=ifrs-tx-2021-en-r&anchor=para_17_b_ii&doctype=Standard -URIDate 2021-03-24 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2021-01-01 -Paragraph 12 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2021-en-r&anchor=para_12_b&doctype=Standard -URIDate 2021-03-24 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2021-01-01 -Paragraph 19B -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2021-en-r&anchor=para_19B_b&doctype=Standard -URIDate 2021-03-24 + Details
Name: | ifrs-full_CountryOfIncorporationOrResidenceOfSubsidiary
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The description of the currency of the primary economic environment in which the entity operates. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 21 -IssueDate 2021-01-01 -Paragraph 53 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=21&code=ifrs-tx-2021-en-r&anchor=para_53&doctype=Standard -URIDate 2021-03-24 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 21 -IssueDate 2021-01-01 -Paragraph 57 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=21&code=ifrs-tx-2021-en-r&anchor=para_57_c&doctype=Standard -URIDate 2021-03-24 + Details
Name: | ifrs-full_DescriptionOfFunctionalCurrency
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The description of the nature of the entity's operations and principal activities. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2021-01-01 -Paragraph 138 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_138_b&doctype=Standard -URIDate 2021-03-24 + Details
Name: | ifrs-full_DescriptionOfNatureOfEntitysOperationsAndPrincipalActivities
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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

X
- Definition The proportion of ownership interest in a subsidiary attributable to the entity. [Refer: Subsidiaries [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 27 -IssueDate 2021-01-01 -Paragraph 17 -Subparagraph b -Clause iii -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=27&code=ifrs-tx-2021-en-r&anchor=para_17_b_iii&doctype=Standard -URIDate 2021-03-24 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 27 -IssueDate 2021-01-01 -Paragraph 16 -Subparagraph b -Clause iii -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=27&code=ifrs-tx-2021-en-r&anchor=para_16_b_iii&doctype=Standard -URIDate 2021-03-24 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2021-01-01 -Paragraph 19B -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2021-en-r&anchor=para_19B_c&doctype=Standard -URIDate 2021-03-24 + Details
Name: | ifrs-full_ProportionOfOwnershipInterestInSubsidiary
Namespace Prefix: | ifrs-full_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition The proportion of the voting rights in a subsidiary held by the entity. [Refer: Subsidiaries [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 27 -IssueDate 2021-01-01 -Paragraph 17 -Subparagraph b -Clause iii -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=27&code=ifrs-tx-2021-en-r&anchor=para_17_b_iii&doctype=Standard -URIDate 2021-03-24 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 27 -IssueDate 2021-01-01 -Paragraph 16 -Subparagraph b -Clause iii -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=27&code=ifrs-tx-2021-en-r&anchor=para_16_b_iii&doctype=Standard -URIDate 2021-03-24 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2021-01-01 -Paragraph 19B -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2021-en-r&anchor=para_19B_c&doctype=Standard -URIDate 2021-03-24 + Details
Name: | ifrs-full_ProportionOfVotingPowerHeldInSubsidiary
Namespace Prefix: | ifrs-full_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | ifrs-full_GeographicalAreasAxis=ifrs-full_CountryOfDomicileMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=itub_BancoItauBBAMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=itub_BancoItauConsignadoSAMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=itub_BancoItaucardSAMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=itub_BancoItauleasingSAMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=itub_CiaItaudeCapitalizacaoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=itub_DibensLeasingArrendamentoMercantilMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=itub_FinanceiraItauCBDSACreditoFinanciamentoeInvestimentoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=itub_HipercardBancoMultiploSAMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=itub_ItausegSeguradoraSAMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=itub_ItauCorretoradeValoresSAMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=itub_ItauSegurosSAMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=itub_ItauUnibancoSaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=itub_ItauVidaePrevidenciaSAMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=itub_LuizacredSASociedadedeCreditoFinanciamentoeInvestimentoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=itub_RedecardInstituioDePagamentoS.a.Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_GeographicalAreasAxis=ifrs-full_ForeignCountriesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=itub_ItauCorpbancaColombiaSAMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=itub_BancoItauArgentinaSAMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=itub_BancoItauParaguaySAMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=itub_BancoItauSuisseSAMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=itub_BancoItauUruguaySAMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=itub_ItauBankLtdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=itub_ItauBBAInternationalPlcMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=itub_ItauBBAUSASecuritiesIncMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=itub_ItauCorpbancaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |