XML 241 R211.htm IDEA: XBRL DOCUMENT v3.25.1

Supplementary information (Details Narrative) R$ in Millions	12 Months Ended
	Dec. 31, 2024 BRL (R$)
Supplementary Information
Expenses with donations	R$ 16

X

- Definition

The amount of expense arising from donations and subsidies.

+ 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_DonationsAndSubsidiesExpense
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	itub_DisclosureSupplementaryInformationAbstract
Namespace Prefix:	itub_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration