v3.26.1
Related parties (Tables)
 12 Months Ended
Dec. 31, 2025
Notes and other explanatory information [abstract]  
Schedule of Transactions Between Related Parties Transactions with related parties:
ITAÚ UNIBANCO HOLDING12/31/202512/31/2024
Parent companiesAssociates and joint
ventures		Other related partiesTotalParent companiesAssociates and joint
ventures		Other related partiesTotal
Assets
lnterbank investments- 1,328 - 1,328 - 820 - 820 
Loan operations- 232 408 640 - 141 448 589 
Securities and derivatives (assets and liabilities)- 795 3,380 4,175 527 373 3,211 4,111 
Other assets- 406 301 707 - 437 54 491 
Total assets- 2,761 4,089 6,850 527 1,771 3,713 6,011 
Liabilities
Deposits(47)(80)(1,159)(1,286)- (129)(1,157)(1,286)
Securities sold under repurchase agreements- (287)(793)(1,080)- (279)(71)(350)
Debt instruments- (84)(213)(297)- (29)(146)(175)
lnterbank and lnterbranch accounts (assets and liabilities)- (290)- (290)- - - - 
Other liabilities- (200)(4,263)(4,463)(2)(13)(1,576)(1,591)
Total Liabilities(47)(941)(6,428)(7,416)(2)(450)(2,950)(3,402)
ITAÚ UNIBANCO HOLDING01/01 to 12/31/202501/01 to 12/31/202401/01 to 12/31/2023
Parent companiesAssociates and
joint ventures		Other related
parties		TotalParent companiesAssociates and
joint ventures		Other related
parties		TotalParent companiesAssociates and
joint ventures		Other related
parties		Total
Statement of lncome
lncome41 263 14 318 156 91 914 1,161 173 48 629 850 
Expenses(5)(29)(230)(264)- (74)(482)(556)- (20)(298)(318)
Other operating income / (expenses)7 (261)(481)(735)14 (167)(839)(992)14 (81)(196)(263)
lncome43 (27)(697)(681)170 (150)(407)(387)187 (53)135 269 
Schedule of Compensation and Benefits of Key Management Personnel
Compensation and benefits attributed to Management Members, members of the Audit Committee and the Board of Directors of ITAÚ UNIBANCO HOLDING in the period correspond to:
01/01 to 12/31/202501/01 to 12/31/202401/01 to 12/31/2023
Fees(851)(711)(686)
Profit sharing(548)(321)(275)
Post-employment benefits(10)(10)(6)
Share-based payment plan(357)(229)(179)
Total(1,766)(1,271)(1,146)