XML 183 R146.htm IDEA: XBRL DOCUMENT
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Stockholders' equity - Additional Information (Detail) R$ / shares in Units, R$ in Millions |  | 12 Months Ended |
--- | --- | --- | ---
Oct. 14, 2021 $ / shares | Oct. 14, 2021 BRL (R$) | Dec. 31, 2021 R$ / shares shares | Dec. 31, 2020 BRL (R$) shares | Dec. 31, 2019 shares
Disclosure of classes of share capital [line items] |  |  |  |  |
Total share capital |  |  | 9,804,135,348 | 9,804,135,348 | 9,804,135,348
Number of common stock |  |  | 4,958,290,359 |  |
Number of preferred stock |  |  | 4,845,844,989 |  |
Annual minimum priority dividend | R$ / shares |  |  | R$ 0.015 |  |
Monthly dividend per share | $ / shares | $ 0.015 |  |  |  |
Payment of interest on supplementary capital per share | $ / shares | $ 0.224868 |  |  |  |
Interest on capital to be distributed net of taxes | R$ |  | R$ 2,199 |  | R$ 439 |
Bottom of range [member] |  |  |  |  |
Disclosure of classes of share capital [line items] |  |  |  |  |
Annual mandatory dividend rate |  |  | 25.00% |  |
Preference shares [member] |  |  |  |  |
Disclosure of classes of share capital [line items] |  |  |  |  |
Total share capital |  |  | 4,845,844,989 | 4,845,844,989 | 4,845,844,989
Annual minimum priority dividend | R$ / shares |  |  | R$ 0.022 |  |

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