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Earnings per share | 12 Months Ended
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Dec. 31, 2022
Earnings per share [abstract] |
Earnings per share | Note 25 - Earnings per share a) Basic earnings per share
Net income attributable to ITAÚ UNIBANCO HOLDING's shareholders is divided by the average number of outstanding shares in the period, excluding treasury shares.
Summary of Earnings Per Share |  |  |
| 01/01 to 12/31/2022 | 01/01 to 12/31/2021 | 01/01 to 12/31/2020
Net income attributable to owners of the parent company | 29,702 | 26,760 | 18,896
Minimum non-cumulative dividends on preferred shares | (106) | (106) | (106)
Retained earnings to be distributed to common equity owners in an amount per share equal to the minimum dividend payable to preferred equity owners | (109) | (109) | (109)
Retained earnings to be distributed, on a pro rata basis, to common and preferred equity owners: |  |  |
Common | 14,920 | 13,462 | 9,491
Preferred | 14,567 | 13,083 | 9,190
Total net income available to equity owners |  |  |
Common | 15,029 | 13,571 | 9,600
Preferred | 14,673 | 13,189 | 9,296
Weighted average number of outstanding shares |  |  |
Common | 4,958,290,359 | 4,958,290,359 | 4,958,290,359
Preferred | 4,840,703,872 | 4,818,741,579 | 4,801,324,161
Basic earnings per share – R$ |  |  |
Common | 3.03 | 2.74 | 1.94
Preferred | 3.03 | 2.74 | 1.94
b) Diluted earnings per share
Calculated similarly to the basic earnings per share; however, it includes the conversion of all preferred shares potentially dilutable in the denominator.
Schedule of diluted earnings per share |  |  |
| 01/01 to 12/31/2022 | 01/01 to 12/31/2021 | 01/01 to 12/31/2020
Net income available to preferred equity owners | 14,673 | 13,189 | 9,296
Dividends on preferred shares after dilution effects | 91 | 75 | 41
Net income available to preferred equity owners considering preferred shares after the dilution effect | 14,764 | 13,264 | 9,337
Net income available to ordinary equity owners | 15,029 | 13,571 | 9,600
Dividend on preferred shares after dilution effects | (91) | (75) | (41)
Net income available to ordinary equity owners considering preferred shares after the dilution effect | 14,938 | 13,496 | 9,559
Adjusted weighted average of shares |  |  |
Common | 4,958,290,359 | 4,958,290,359 | 4,958,290,359
Preferred | 4,900,469,300 | 4,873,042,114 | 4,843,233,835
Preferred | 4,840,703,872 | 4,818,741,579 | 4,801,324,161
Incremental as per share-based payment plans | 59,765,428 | 54,300,535 | 41,909,674
Diluted earnings per share – R$ |  |  |
Common | 3.01 | 2.72 | 1.93
Preferred | 3.01 | 2.72 | 1.93
There was no potentially antidulitive effect of the shares in share-based payment plans, in both periods.

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