XML 185 R155.htm IDEA: XBRL DOCUMENT
v3.25.1

Taxes (Details 3) - BRL (R$) R$ in Millions | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | --- | ---
IfrsStatementLineItems [Line Items] |  |  |
Temporary differences | R$ 67,737 |  |
Temporary differences, percentage | 100.00% |  |
Deferred tax assets Tax loss /social contribution loss Carryforwards | R$ 2,469 |  |
Deferred tax assets Tax loss /social contribution loss Carryforwards, percentage | 100.00% |  |
Deferred tax assets | R$ 70,206 | R$ 61,668 | R$ 59,259
Deferred tax assets, percentage | 100.00% |  |
Deferred tax liabilities | R$ (11,950) |  |
Deferred tax liabilities, percentage | 100.00% |  |
Net deferred taxes | R$ 58,256 |  |
Net deferred taxes,percentage | 100.00% |  |
Present value of temporary differences | R$ 52,656 |  |
Present value of tax loss /social contribution loss carryforwards | 1,806 |  |
Present value of deferred tax assets | 54,462 |  |
Present value of deferred taxes liabilites | (8,021) |  |
Present value of net deferred taxes | 46,441 |  |
Not later than one year [member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Temporary differences | R$ 12,140 |  |
Temporary differences, percentage | 17.90% |  |
Deferred tax assets Tax loss /social contribution loss Carryforwards | R$ 404 |  |
Deferred tax assets Tax loss /social contribution loss Carryforwards, percentage | 16.40% |  |
Deferred tax assets | R$ 12,544 |  |
Deferred tax assets, percentage | 17.90% |  |
Deferred tax liabilities | R$ (1,209) |  |
Deferred tax liabilities, percentage | 10.10% |  |
Net deferred taxes | R$ 11,335 |  |
Net deferred taxes,percentage | 19.50% |  |
Later than one year and not later than two years [member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Temporary differences | R$ 7,872 |  |
Temporary differences, percentage | 11.60% |  |
Deferred tax assets Tax loss /social contribution loss Carryforwards | R$ 171 |  |
Deferred tax assets Tax loss /social contribution loss Carryforwards, percentage | 6.90% |  |
Deferred tax assets | R$ 8,043 |  |
Deferred tax assets, percentage | 11.50% |  |
Deferred tax liabilities | R$ (313) |  |
Deferred tax liabilities, percentage | 2.60% |  |
Net deferred taxes | R$ 7,730 |  |
Net deferred taxes,percentage | 13.30% |  |
Later than one year and not later than three years [member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Temporary differences | R$ 7,468 |  |
Temporary differences, percentage | 11.00% |  |
Deferred tax assets Tax loss /social contribution loss Carryforwards | R$ 99 |  |
Deferred tax assets Tax loss /social contribution loss Carryforwards, percentage | 4.00% |  |
Deferred tax assets | R$ 7,567 |  |
Deferred tax assets, percentage | 10.80% |  |
Deferred tax liabilities | R$ (272) |  |
Deferred tax liabilities, percentage | 2.30% |  |
Net deferred taxes | R$ 7,295 |  |
Net deferred taxes,percentage | 12.50% |  |
Later than three years and not later than four years [member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Temporary differences | R$ 7,093 |  |
Temporary differences, percentage | 10.50% |  |
Deferred tax assets Tax loss /social contribution loss Carryforwards | R$ 100 |  |
Deferred tax assets Tax loss /social contribution loss Carryforwards, percentage | 4.10% |  |
Deferred tax assets | R$ 7,193 |  |
Deferred tax assets, percentage | 10.20% |  |
Deferred tax liabilities | R$ (405) |  |
Deferred tax liabilities, percentage | 3.40% |  |
Net deferred taxes | R$ 6,788 |  |
Net deferred taxes,percentage | 11.70% |  |
Later than four years and not later than five years [member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Temporary differences | R$ 6,758 |  |
Temporary differences, percentage | 10.00% |  |
Deferred tax assets Tax loss /social contribution loss Carryforwards | R$ 170 |  |
Deferred tax assets Tax loss /social contribution loss Carryforwards, percentage | 6.90% |  |
Deferred tax assets | R$ 6,928 |  |
Deferred tax assets, percentage | 9.90% |  |
Deferred tax liabilities | R$ (851) |  |
Deferred tax liabilities, percentage | 7.10% |  |
Net deferred taxes | R$ 6,077 |  |
Net deferred taxes,percentage | 10.40% |  |
Later than five years [member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Temporary differences | R$ 26,406 |  |
Temporary differences, percentage | 39.00% |  |
Deferred tax assets Tax loss /social contribution loss Carryforwards | R$ 1,525 |  |
Deferred tax assets Tax loss /social contribution loss Carryforwards, percentage | 61.70% |  |
Deferred tax assets | R$ 27,931 |  |
Deferred tax assets, percentage | 39.70% |  |
Deferred tax liabilities | R$ (8,900) |  |
Deferred tax liabilities, percentage | 74.50% |  |
Net deferred taxes | R$ 19,031 |  |
Net deferred taxes,percentage | 32.60% |  |

X
- Definition The amounts of income taxes recoverable in future periods in respect of: (a) deductible temporary differences; (b) the carryforward of unused tax losses; and (c) the carryforward of unused tax credits. [Refer: Temporary differences [member]; Unused tax credits [member]; Unused tax losses [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 12 -IssueDate 2024-01-01 -Paragraph 81 -Subparagraph g -Clause i -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=12&code=ifrs-tx-2024-en-r&anchor=para_81_g_i&doctype=Standard -URIDate 2024-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 54 -Subparagraph o -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_54_o&doctype=Standard -URIDate 2024-03-27 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 56 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_56&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_DeferredTaxAssets
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The amounts of income taxes payable in future periods in respect of taxable temporary differences. [Refer: Temporary differences [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 12 -IssueDate 2024-01-01 -Paragraph 81 -Subparagraph g -Clause i -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=12&code=ifrs-tx-2024-en-r&anchor=para_81_g_i&doctype=Standard -URIDate 2024-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 54 -Subparagraph o -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_54_o&doctype=Standard -URIDate 2024-03-27 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 56 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_56&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_DeferredTaxLiabilities
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The amount of deferred tax assets net of deferred tax liabilities, when the absolute amount of deferred tax assets is greater than the absolute amount of deferred tax liabilities. [Refer: Deferred tax assets; Deferred tax liabilities] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 12 -IssueDate 2024-01-01 -Paragraph 81 -Subparagraph g -Clause i -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=12&code=ifrs-tx-2024-en-r&anchor=para_81_g_i&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_NetDeferredTaxAssets
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- References No definition available. + Details
Name: | itub_DeferredTaxAssetsPercentage
Namespace Prefix: | itub_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- References No definition available. + Details
Name: | itub_DeferredTaxAssetsTaxLossCarryForwards
Namespace Prefix: | itub_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- References No definition available. + Details
Name: | itub_DeferredTaxAssetsTaxLossCarryForwardsPercentage
Namespace Prefix: | itub_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- References No definition available. + Details
Name: | itub_DeferredTaxAssetsTemporaryDifferences
Namespace Prefix: | itub_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- References No definition available. + Details
Name: | itub_DeferredTaxAssetsTemporaryDifferencesPercentage
Namespace Prefix: | itub_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- References No definition available. + Details
Name: | itub_DeferredTaxLiabilitiesPercentage
Namespace Prefix: | itub_
Data Type: | dtr-types:percentItemType
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
- References No definition available. + Details
Name: | itub_NetDeferredTaxAssetsPercentage
Namespace Prefix: | itub_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- References No definition available. + Details
Name: | itub_PresentValueOfDeferredTaxAssets
Namespace Prefix: | itub_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- References No definition available. + Details
Name: | itub_PresentValueOfDeferredTaxAssetsTaxLossCarryForwards
Namespace Prefix: | itub_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- References No definition available. + Details
Name: | itub_PresentValueOfDeferredTaxAssetsTemporaryDifferences
Namespace Prefix: | itub_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- References No definition available. + Details
Name: | itub_PresentValueOfDeferredTaxLiabilites
Namespace Prefix: | itub_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- References No definition available. + Details
Name: | itub_PresentValueOfNetDeferredTaxAssets
Namespace Prefix: | itub_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | ifrs-full_MaturityAxis=ifrs-full_NotLaterThanOneYearMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_MaturityAxis=ifrs-full_LaterThanOneYearAndNotLaterThanTwoYearsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_MaturityAxis=ifrs-full_LaterThanOneYearAndNotLaterThanThreeYearsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_MaturityAxis=ifrs-full_LaterThanThreeYearsAndNotLaterThanFourYearsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_MaturityAxis=ifrs-full_LaterThanFourYearsAndNotLaterThanFiveYearsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_MaturityAxis=ifrs-full_LaterThanFiveYearsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |