XML 106 R74.htm IDEA: XBRL DOCUMENT v3.23.1

Significant accounting policies (Details 1)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Country of domicile [member] | Banco Itau B B A [Member]
IfrsStatementLineItems [Line Items]
Incorporation country	Brazil
Activity	Financial institution
Interest in voting capital	100000000.00%	100000000.00%
Interest in total capital	100000000.00%	100000000.00%
Country of domicile [member] | Banco Itau Consignado S.A. [Member]
IfrsStatementLineItems [Line Items]
Incorporation country	Brazil
Activity	Financial institution
Interest in voting capital	100000000.00%	100000000.00%
Interest in total capital	100000000.00%	100000000.00%
Country of domicile [member] | Banco Itaucard S.A [Member]
IfrsStatementLineItems [Line Items]
Incorporation country	Brazil
Activity	Financial institution
Interest in voting capital	100000000.00%	100000000.00%
Interest in total capital	100000000.00%	100000000.00%
Country of domicile [member] | Banco Itauleasing S.A. [Member]
IfrsStatementLineItems [Line Items]
Incorporation country	Brazil
Activity	Financial institution
Interest in voting capital		100000000.00%
Interest in total capital		100000000.00%
Country of domicile [member] | Cia. Itau de Capitalizacao [Member]
IfrsStatementLineItems [Line Items]
Incorporation country	Brazil
Activity	Premium Bonds
Interest in voting capital	100000000.00%	100000000.00%
Interest in total capital	100000000.00%	100000000.00%
Country of domicile [member] | Dibens Leasing S.A. - Arrendamento Mercantil [Member]
IfrsStatementLineItems [Line Items]
Incorporation country	Brazil
Activity	Leasing
Interest in voting capital	100000000.00%	100000000.00%
Interest in total capital	100000000.00%	100000000.00%
Country of domicile [member] | Financeira Itau CBD S.A. Credito, Financiamento e Investimento [Member]
IfrsStatementLineItems [Line Items]
Incorporation country	Brazil
Activity	Consumer finance credit
Country of domicile [member] | Financeira Itau C B D S A Credito Financiamentoe Inves [Member]
IfrsStatementLineItems [Line Items]
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]
IfrsStatementLineItems [Line Items]
Incorporation country	Brazil
Activity	Financial institution
Interest in voting capital	100000000.00%	100000000.00%
Interest in total capital	100000000.00%	100000000.00%
Country of domicile [member] | Itau Corretora de Valores S.A. [Member]
IfrsStatementLineItems [Line Items]
Incorporation country	Brazil
Activity	Securities Broker
Interest in voting capital	100000000.00%	100000000.00%
Interest in total capital	100000000.00%	100000000.00%
Country of domicile [member] | Itau Seguros S.A. [Member]
IfrsStatementLineItems [Line Items]
Incorporation country	Brazil
Activity	Insurance
Interest in voting capital	100000000.00%	100000000.00%
Interest in total capital	100000000.00%	100000000.00%
Country of domicile [member] | Itau Unibanco SA [Member]
IfrsStatementLineItems [Line Items]
Incorporation country	Brazil
Activity	Financial institution
Interest in voting capital	100000000.00%	100000000.00%
Interest in total capital	100000000.00%	100000000.00%
Country of domicile [member] | Itau Vida e Previdencia S.A. [Member]
IfrsStatementLineItems [Line Items]
Incorporation country	Brazil
Activity	Pension plan
Interest in voting capital	100000000.00%	100000000.00%
Interest in total capital	100000000.00%	100000000.00%
Country of domicile [member] | Luizacred S.A. Sociedade de Credito, Financiamento e Investimento [Member]
IfrsStatementLineItems [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]
IfrsStatementLineItems [Line Items]
Incorporation country	Brazil
Activity	Acquirer
Interest in voting capital	100000000.00%	100000000.00%
Interest in total capital	100000000.00%	100000000.00%
Foreign countries [member] | Itau Corpbanca Colombia S.A. [Member]
IfrsStatementLineItems [Line Items]
Incorporation country	Colombia
Activity	Financial institution
Interest in voting capital	65.27%	49.30%
Interest in total capital	65.27%	49.30%
Functional currency	Colombian peso
Foreign countries [member] | Banco Itau (Suisse) SA [Member]
IfrsStatementLineItems [Line Items]
Incorporation country	Switzerland
Activity	Financial institution
Interest in voting capital	100000000.00%	100000000.00%
Interest in total capital	100000000.00%	100000000.00%
Functional currency	Swiss franc
Foreign countries [member] | Banco Itau Argentina S.A. [Member]
IfrsStatementLineItems [Line Items]
Incorporation country	Argentina
Activity	Financial institution
Interest in voting capital	100000000.00%	100000000.00%
Interest in total capital	100000000.00%	100000000.00%
Functional currency	Argentine peso
Foreign countries [member] | Banco Itau Paraguay S.A. [Member]
IfrsStatementLineItems [Line Items]
Incorporation country	Paraguay
Activity	Financial institution
Interest in voting capital	100000000.00%	100000000.00%
Interest in total capital	100000000.00%	100000000.00%
Functional currency	Guarani
Foreign countries [member] | Banco Itau Uruguay S.A. [Member]
IfrsStatementLineItems [Line Items]
Incorporation country	Uruguay
Activity	Financial institution
Interest in voting capital	100000000.00%	100000000.00%
Interest in total capital	100000000.00%	100000000.00%
Functional currency	Uruguayan peso
Foreign countries [member] | Itau Bank, Ltd. [Member]
IfrsStatementLineItems [Line Items]
Incorporation country	Cayman Islands
Activity	Financial institution
Interest in voting capital	100000000.00%	100000000.00%
Interest in total capital	100000000.00%	100000000.00%
Functional currency	Real
Foreign countries [member] | Itau BBA International plc [Member]
IfrsStatementLineItems [Line Items]
Incorporation country	United Kingdom
Activity	Financial institution
Interest in voting capital	100000000.00%	100000000.00%
Interest in total capital	100000000.00%	100000000.00%
Functional currency	US Dollar
Foreign countries [member] | Itau BBA USA Securities Inc. [Member]
IfrsStatementLineItems [Line Items]
Incorporation country	United States
Activity	Securities Broker
Interest in voting capital	100000000.00%	100000000.00%
Interest in total capital	100000000.00%	100000000.00%
Functional currency	US Dollar
Foreign countries [member] | Itau Corpbanca [Member]
IfrsStatementLineItems [Line Items]
Incorporation country	Chile
Activity	Financial institution
Interest in voting capital	65.62%	56.60%
Interest in total capital	65.62%	56.60%
Functional currency	Chilean peso

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 2022-03-24
-Paragraph 16
-Subparagraph b
-Clause ii
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=27&code=ifrs-tx-2022-en-r&anchor=para_16_b_ii&doctype=Standard
-URIDate 2022-03-24

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 27
-IssueDate 2022-03-24
-Paragraph 17
-Subparagraph b
-Clause ii
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=27&code=ifrs-tx-2022-en-r&anchor=para_17_b_ii&doctype=Standard
-URIDate 2022-03-24

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 12
-IssueDate 2022-03-24
-Paragraph 12
-Subparagraph b
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2022-en-r&anchor=para_12_b&doctype=Standard
-URIDate 2022-03-24

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 12
-IssueDate 2022-03-24
-Paragraph 19B
-Subparagraph b
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2022-en-r&anchor=para_19B_b&doctype=Standard
-URIDate 2022-03-24

+ 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 2022-03-24
-Paragraph 53
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=21&code=ifrs-tx-2022-en-r&anchor=para_53&doctype=Standard
-URIDate 2022-03-24

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 21
-IssueDate 2022-03-24
-Paragraph 57
-Subparagraph c
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=21&code=ifrs-tx-2022-en-r&anchor=para_57_c&doctype=Standard
-URIDate 2022-03-24

+ 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 2022-03-24
-Paragraph 138
-Subparagraph b
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2022-en-r&anchor=para_138_b&doctype=Standard
-URIDate 2022-03-24

+ Details

Name:	ifrs-full_DescriptionOfNatureOfEntitysOperationsAndPrincipalActivities
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 2022-03-24
-Paragraph 17
-Subparagraph b
-Clause iii
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=27&code=ifrs-tx-2022-en-r&anchor=para_17_b_iii&doctype=Standard
-URIDate 2022-03-24

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 27
-IssueDate 2022-03-24
-Paragraph 16
-Subparagraph b
-Clause iii
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=27&code=ifrs-tx-2022-en-r&anchor=para_16_b_iii&doctype=Standard
-URIDate 2022-03-24

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 12
-IssueDate 2022-03-24
-Paragraph 19B
-Subparagraph c
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2022-en-r&anchor=para_19B_c&doctype=Standard
-URIDate 2022-03-24

+ Details

Name:	ifrs-full_ProportionOfOwnershipInterestInSubsidiary
Namespace Prefix:	ifrs-full_
Data Type:	dtr-types: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 2022-03-24
-Paragraph 17
-Subparagraph b
-Clause iii
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=27&code=ifrs-tx-2022-en-r&anchor=para_17_b_iii&doctype=Standard
-URIDate 2022-03-24

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 27
-IssueDate 2022-03-24
-Paragraph 16
-Subparagraph b
-Clause iii
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=27&code=ifrs-tx-2022-en-r&anchor=para_16_b_iii&doctype=Standard
-URIDate 2022-03-24

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 12
-IssueDate 2022-03-24
-Paragraph 19B
-Subparagraph c
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2022-en-r&anchor=para_19B_c&doctype=Standard
-URIDate 2022-03-24

+ Details

Name:	ifrs-full_ProportionOfVotingPowerHeldInSubsidiary
Namespace Prefix:	ifrs-full_
Data Type:	dtr-types:percentItemType
Balance Type:	na
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_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_FinanceiraItauCBDSACreditoFinanciamentoeInvesMember
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_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_BancoItauSuisseSAMember
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_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: