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FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT - Fair value settled amounts (Details) - BRL (R$) R$ in Thousands | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021
Financial Instruments and Risks |  |
Settled derivatives, received (paid) | R$ 282,225 | R$ (1,921,253)
Operational Hedge |  |
Financial Instruments and Risks |  |
Settled derivatives, received (paid) | 734,032 | (1,267,832)
Operational Hedge | Zero cost collar (R$ x U.S.$) |  |
Financial Instruments and Risks |  |
Settled derivatives, received (paid) | 718,618 | (1,269,231)
Operational Hedge | NDF (R$ x US$) |  |
Financial Instruments and Risks |  |
Settled derivatives, received (paid) | 8,301 | 1,399
Operational Hedge | NDF (Euro x US$) |  |
Financial Instruments and Risks |  |
Settled derivatives, received (paid) | 7,113 |
Commodity Hedge |  |
Financial Instruments and Risks |  |
Settled derivatives, received (paid) |  | (54,002)
Commodity Hedge | Swap VLSFO/other |  |
Financial Instruments and Risks |  |
Settled derivatives, received (paid) |  | (54,002)
Debt Hedges |  |
Financial Instruments and Risks |  |
Settled derivatives, received (paid) | (451,807) | (599,419)
Debt Hedges | Swap CDI x Fixed (US$) |  |
Financial Instruments and Risks |  |
Settled derivatives, received (paid) | (261,570) | (266,268)
Debt Hedges | Swap IPCA to CDI (Brazilian Reais) |  |
Financial Instruments and Risks |  |
Settled derivatives, received (paid) | (5,180) | 41,651
Debt Hedges | Swap IPCA to Fixed (US$) |  |
Financial Instruments and Risks |  |
Settled derivatives, received (paid) | 171 | (4,819)
Debt Hedges | Swap Pre-Fixed to US$ |  |
Financial Instruments and Risks |  |
Settled derivatives, received (paid) | 54,128 | 49,562
Debt Hedges | Swap LIBOR to Fixed (US$) |  |
Financial Instruments and Risks |  |
Settled derivatives, received (paid) | R$ (239,356) | R$ (419,545)

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