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Participative shareholders' debentures (Details 1) - USD ($) $ in Millions | 6 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2023 | Dec. 31, 2022 | Jun. 30, 2022 | Dec. 31, 2021 | Jun. 30, 2021 | Dec. 31, 2020 | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Participative Shareholders Debentures |  |  |  |  |  |  |  |  |
Remuneration date | Oct. 02, 2023 | Apr. 03, 2023 | Oct. 03, 2022 | Apr. 01, 2022 | Oct. 01, 2021 | Apr. 01, 2021 |  |  |
Remuneration paid to the participative stockholders debentures | $ 106 | $ 127 | $ 137 | $ 234 | $ 225 | $ 193 | $ 233 | $ 371 | $ 418

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