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Share-based payment (Tables) | 12 Months Ended
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Dec. 31, 2021
Statement [Line Items] |
Summary of Expenses on Stock Based Payment Plans | Expenses on share-based payment plans are presented in the table below:
|  | 01/01 to 12/31/2021 |  |  | 01/01 to 12/31/2020 |  |  | 01/01 to 12/31/2019 |
Partner Plan |  |  | (129 | ) |  |  | (241 | ) |  |  | (242 | )
Share-based plan |  |  | (381 | ) |  |  | (489 | ) |  |  | (384 | )
Total |  |  | (510 | ) |  |  | (730 | ) |  |  | (626 | )
Partner plan [member] |
Statement [Line Items] |
Summary of Changes in Share-based Compensation Plan | Change in the Partner Program
|  | 01/01 to 12/31/2021 |  |  | 01/01 to 12/31/2020 |
|  | Quantity |  |  | Quantity |
Opening balance |  |  | 36,291,760 |  |  |  | 39,305,211 |
New (1) |  |  | 14,583,318 |  |  |  | 10,488,126 |
Delivered |  |  | (11,652,700 | ) |  |  | (11,408,109 | )
Cancelled |  |  | (2,278,382 | ) |  |  | (2,093,468 | )
Closing balance |  |  | 36,943,996 |  |  |  | 36,291,760 |
Weighted average of remaining contractual life (years) |  |  | 1.80 |  |  |  | 1.69 |
Market value weighted average (R$) |  |  | 16.71 |  |  |  | 23.37 |
(1) | As a result of the reduction of the minority interest in XP Inc. and subsequent merger of Xpart S.A. (Note 3), as from October 2021, there was and increase in the number of ITUB4 shares to be delivered under the variable compensation plans.
Variable compensation [Member] |
Statement [Line Items] |
Summary of Changes in Share-based Compensation Plan | Change in share-based variable compensation
|  | 01/01 to 12/31/2021 |  |  | 01/01 to 12/31/2020 |
|  | Quantity |  |  | Quantity |
Opening balance |  |  | 27,407,231 |  |  |  | 20,220,934 |
New (1) |  |  | 21,767,235 |  |  |  | 18,329,108 |
Delivered |  |  | (10,818,958 | ) |  |  | (10,574,321 | )
Cancelled |  |  | (1,541,260 | ) |  |  | (568,490 | )
Closing balance |  |  | 36,814,248 |  |  |  | 27,407,231 |
Weighted average of remaining contractual life (years) |  |  | 1.04 |  |  |  | 1.21 |
Market value weighted average (R$) |  |  | 23.59 |  |  |  | 31.22 |
(1) | As a result of the reduction of the minority interest in XP Inc. and subsequent merger of XPart S.A. (Note 3), as from October 2021, there was an increase in the number of ITUB4 shares to be delivered under the variable compensation plans.

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