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Equity and Remuneration to Shareholders - Schedule of Equity Valuation Adjustments (Details) - BRL (R$) R$ in Millions | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Equity And Remuneration To Shareholders |  |  |
Adjustments to actuarial liabilities - Employee benefits | R$ (2,072) | R$ (2,303) | R$ (2,762)
Deemed cost of PP&E | 421 | 427 | 554
Others | 3 | 2 |
Valuation adjustments | R$ (1,648) | R$ (1,874) | R$ (2,208)

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