XML 123 R59.htm IDEA: XBRL DOCUMENT
v3.20.1

Share-based payment (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2019
Statement [Line Items] |
Summary of Expenses on Stock Based Payment Plans | Expenses on stock-based payment plans are presented in the table below:
|  | 01/01 to 12/31/2019 |  |  | 01/01 to 12/31/2018 |  |  | 01/01 to 12/31/2017 |
Partner Plan |  |  | (242 | ) |  |  | (226 | ) |  |  | (234 | )
Variable compensation plan |  |  | (384 | ) |  |  | (377 | ) |  |  | (302 | )
Total |  |  | (626 | ) |  |  | (603 | ) |  |  | (536 | )
Summary of Changes in Share-based Compensation Plan | Summary of changes in the Simple options plan
|  | 01/01 to 12/31/2019 |  |  | 01/01 to 12/31/2018 |
|  | Quantity |  |  | Weighted average exercise price |  |  | Quantity |  |  | Weighted average exercise price |
Opening balance |  |  | 3,089,599 |  |  |  | 22.11 |  |  |  | 24,514,359 |  |  |  | 25.21 |
Options vested at the end of the period |  |  | 3,089,599 |  |  |  | 22.11 |  |  |  | 24,514,359 |  |  |  | 25.21 |
Options: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Canceled / Forfeited (*) |  |  | (72,318 | ) |  |  | 24.36 |  |  |  | (352,085 | ) |  |  | 29.29 |
Exercised |  |  | (3,017,281 | ) |  |  | 22.68 |  |  |  | (21,072,675 | ) |  |  | 28.26 |
Closing balance |  |  | — |  |  |  | — |  |  |  | 3,089,599 |  |  |  | 22.11 |
Options vested at the end of the period |  |  | — |  |  |  | — |  |  |  | 3,089,599 |  |  |  | 22.11 |
Range of exercise prices |  |  |  |  |  |  | 22.95 |  |  |  |  |  |  |  | 14.47 - 29.51 |
Weighted average of the remaining contractual life (in years) |  |  |  |  |  |  | — |  |  |  |  |  |  |  | 0.99 |
Market value weighted average (R$) |  |  |  |  |  |  | 36.34 |  |  |  |  |  |  |  | 33.98 |
Partner plan [member] |
Statement [Line Items] |
Summary of Changes in Share-based Compensation Plan | Changes in the Partner Program
|  | 01/01 to 12/31/2019 |  |  | 01/01 to 12/31/2018 |
|  | Quantity |  |  | Quantity |
Opening balance |  |  | 48,871,182 |  |  |  | 51,074,441 |
New |  |  | 8,096,700 |  |  |  | 9,912,356 |
Delivered |  |  | (15,627,167 | ) |  |  | (11,597,420 | )
Cancelled |  |  | (2,035,504 | ) |  |  | (518,195 | )
Closing balance |  |  | 39,305,211 |  |  |  | 48,871,182 |
Weighted average of remaining contractual life (years) |  |  | 1.59 |  |  |  | 2.52 |
Market value weighted average (R$) |  |  | 25.49 |  |  |  | 26.22 |
Variable compensation [Member] |
Statement [Line Items] |
Summary of Changes in Share-based Compensation Plan | Change in share-based variable compensation
|  | 01/01 to 12/31/2019 |  |  | 01/01 to 12/31/2018 |
|  | Quantity |  |  | Quantity |
Opening balance |  |  | 25,016,145 |  |  |  | 31,229,973 |
New |  |  | 9,794,250 |  |  |  | 10,552,225 |
Delivered |  |  | (14,237,280 | ) |  |  | (16,611,521 | )
Cancelled |  |  | (352,181 | ) |  |  | (154,532 | )
Closing balance |  |  | 20,220,934 |  |  |  | 25,016,145 |
Market value weighted average (R$) |  |  | 37.55 |  |  |  | 34.04 |

X
- Definition Additional information about share-based payment arrangements necessary to satisfy the disclosure requirements of IFRS 2. [Refer: Share-based payment arrangements [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 2 -IssueDate 2019-01-01 -Paragraph 52 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2019-en-r&anchor=para_52&doctype=Standard -URIDate 2019-03-27 + Details
Name: | ifrs-full_AdditionalInformationAboutSharebasedPaymentArrangements
Namespace Prefix: | ifrs-full_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition The disclosure of the number and weighted average exercise prices of other equity instruments (ie other than share options). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IFRS -Number 2 -IssueDate 2019-01-01 -Paragraph 45 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2019-en-r&anchor=para_45&doctype=Standard -URIDate 2019-03-27 + Details
Name: | ifrs-full_DisclosureOfNumberAndWeightedAverageExercisePricesOfOtherEquityInstrumentsExplanatory
Namespace Prefix: | ifrs-full_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition The disclosure of the number and weighted average exercise prices of share options. [Refer: Weighted average [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 2 -IssueDate 2019-01-01 -Paragraph 45 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2019-en-r&anchor=para_45_b&doctype=Standard -URIDate 2019-03-27 + Details
Name: | ifrs-full_DisclosureOfNumberAndWeightedAverageExercisePricesOfShareOptionsExplanatory
Namespace Prefix: | ifrs-full_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

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

X
- Details
Name: | ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=itub_PartnerPlanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=itub_VariableCompensationMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |