XML 219 R189.htm IDEA: XBRL DOCUMENT
v3.25.1

Related parties (Details) - BRL (R$) R$ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Assets |  |  |
lnterbank investments | R$ 820 | R$ 321 |
Loan operations | 589 | 679 |
Securities and derivatives (asset and liability position) | 4,111 | 4,720 |
Other assets | 491 | 397 |
Total assets | 6,011 | 6,117 |
Liabilities |  |  |
Deposits | (1,286) | (1,398) |
Deposits received under securities repurchase agreements | (350) | (194) |
Funds from acceptances and issuance of securities | (175) | (82) |
Other liabilities | (1,591) | (1,089) |
Total Liabilities | (3,402) | (2,763) |
Statement of lncome |  |  |
lncome | 1,161 | 850 | R$ 1,186
Expenses | (556) | (318) | (194)
Other operating revenues / (expenses) | (992) | (263) | (145)
lncome | (387) | 269 | 847
Parent [member] |  |  |
Assets |  |  |
lnterbank investments |  |  |
Loan operations |  |  |
Securities and derivatives (asset and liability position) | 527 | 1,307 |
Other assets |  | 1 |
Total assets | 527 | 1,308 |
Liabilities |  |  |
Deposits |  |  |
Deposits received under securities repurchase agreements |  |  |
Funds from acceptances and issuance of securities |  |  |
Other liabilities | (2) | (8) |
Total Liabilities | (2) | (8) |
Statement of lncome |  |  |
lncome | 156 | 173 | 166
Expenses |  |  |
Other operating revenues / (expenses) | 14 | 14 | 13
lncome | 170 | 187 | 179
Associates And Joint Ventures [Member] |  |  |
Assets |  |  |
lnterbank investments | 820 | 321 |
Loan operations | 141 | 355 |
Securities and derivatives (asset and liability position) | 373 | 317 |
Other assets | 437 | 357 |
Total assets | 1,771 | 1,350 |
Liabilities |  |  |
Deposits | (129) | (92) |
Deposits received under securities repurchase agreements | (279) | (119) |
Funds from acceptances and issuance of securities | (29) |  |
Other liabilities | (13) | (9) |
Total Liabilities | (450) | (220) |
Statement of lncome |  |  |
lncome | 91 | 48 | 51
Expenses | (74) | (20) | (7)
Other operating revenues / (expenses) | (167) | (81) | (98)
lncome | (150) | (53) | (54)
Other related parties [member] |  |  |
Assets |  |  |
lnterbank investments |  |  |
Loan operations | 448 | 324 |
Securities and derivatives (asset and liability position) | 3,211 | 3,096 |
Other assets | 54 | 39 |
Total assets | 3,713 | 3,459 |
Liabilities |  |  |
Deposits | (1,157) | (1,306) |
Deposits received under securities repurchase agreements | (71) | (75) |
Funds from acceptances and issuance of securities | (146) | (82) |
Other liabilities | (1,576) | (1,072) |
Total Liabilities | (2,950) | (2,535) |
Statement of lncome |  |  |
lncome | 914 | 629 | 969
Expenses | (482) | (298) | (187)
Other operating revenues / (expenses) | (839) | (196) | (60)
lncome | R$ (407) | R$ 135 | R$ 722

X
- References No definition available. + Details
Name: | ifrs-full_AssetsAbstract
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | ifrs-full_LiabilitiesAbstract
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | ifrs-full_StatementOfFinancialPositionAbstract
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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

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

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

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

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

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

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

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

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

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

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

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

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

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

X
- Details
Name: | ifrs-full_CategoriesOfRelatedPartiesAxis=ifrs-full_ParentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CategoriesOfRelatedPartiesAxis=itub_AssociatesAndJointVenturesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CategoriesOfRelatedPartiesAxis=ifrs-full_OtherRelatedPartiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |