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Equity (Tables) | 6 Months Ended
--- | ---
Jun. 30, 2023
Notes and other explanatory information [abstract] |
Schedule of share capital |
Schedule of share capital |
| June 30, 2023
Shareholders | Common shares | Golden shares | Total
Shareholders with more than 5% of total capital | 959,040,176 | - | 959,040,176
Previ | 395,686,156 | - | 395,686,156
Mitsui&co | 286,347,055 | - | 286,347,055
Blackrock, Inc | 277,006,965 | - | 277,006,965
Free floating | 3,384,352,681 | - | 3,384,352,681
Golden shares | - | 12 | 12
Total outstanding (without shares in treasury) | 4,343,392,857 | 12 | 4,343,392,869
Shares in treasury | 195,614,711 | - | 195,614,711
Total capital | 4,539,007,568 | 12 | 4,539,007,580
Schedule of cancellation of treasury shares |
Schedule of cancellation of treasury shares |  |
| Number of canceled shares | Carrying amount
Cancelation approved on March 2, 2023 (i) | 239,881,683 | 4,164
Six-month period ended June 30, 2023 | 239,881,683 | 4,164
Cancelation approved on February 24, 2022 (i) | 133,418,347 | 2,830
Six-month period ended June 30, 2022 | 133,418,347 | 2,830
(i) | During the six-month period ended June 30, 2023 and 2022, the Board of Directors approved cancelations of common shares issued by the Company, acquired and held in treasury, without reducing the amount of its share capital. The effects were transferred in shareholders' equity as "Treasury shares cancelled", between the "Revenue reserve" and "Treasury shares".
Schedule of share buyback program |
Schedule of share buyback program |  |  |
| Total of shares repurchased |  | Effect on cash flows
| Six-month period ended June 30,
| 2023 |  | 2022 |  | 2023 |  | 2022
Shares buyback program for 500,000,000 shares (i) |  |  |  |  |  |  |
Acquired by Parent | 73,179,052 |  | 32,416,000 |  | 1,102 |  | 527
Acquired by wholly owned subsidiaries | 67,979,481 |  | 38,027,798 |  | 1,022 |  | 606
| 141,158,533 |  | 70,443,798 |  | 2,124 |  | 1,133
Shares buyback program for 470,000,000 shares (ii) |  |  |  |  |  |  |
Acquired by Parent | - |  | 81,855,600 |  | - |  | 1,501
Acquired by wholly owned subsidiaries | - |  | 96,959,900 |  | - |  | 1,750
| - |  | 178,815,500 |  | - |  | 3,251
Shares buyback program | 141,158,533 |  | 249,259,298 |  | 2,124 |  | 4,384
(i) | On April 27, 2022, the Board of Directors approved the common shares buyback program, limited to a maximum of 500,000,000 common shares or their respective ADRs.
(ii) | On April 1, 2021, the Board of Directors approved the common shares buyback program, limited to a maximum of 270,000,000 common shares or their respective ADRs. Continuing the previous program, the Board of Directors approved a new shares buyback program on October 28, 2021, with a limit of up to 200,000,000 common shares or their respective ADRs. Both programs were concluded in 2022.

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