XML 172 R142.htm IDEA: XBRL DOCUMENT v3.25.1

Share-based payment (Details) - BRL (R$) R$ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
IfrsStatementLineItems [Line Items]
Compensation expense by plan	R$ (818)	R$ (737)	R$ (598)
Partners Plan [Member]
IfrsStatementLineItems [Line Items]
Compensation expense by plan	(336)	(264)	(180)
Share Based Plan [Member]
IfrsStatementLineItems [Line Items]
Compensation expense by plan	R$ (482)	R$ (473)	R$ (418)

X

- Definition

The amount of expense from share-based payment transactions with employees. [Refer: Expense from share-based payment transactions]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2024-01-01
-Paragraph 112
-Subparagraph c
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_112_c&doctype=Standard
-URIDate 2024-03-27

+ Details

Name:	ifrs-full_ExpenseFromSharebasedPaymentTransactionsWithEmployees
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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_TypesOfSharebasedPaymentArrangementsAxis=itub_PartnersPlanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=itub_ShareBasedPlanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: