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FINANCIAL INSTRUMENTS - Sensitivity analysis (Details) - BRL (R$) R$ in Thousands | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021
Foreign currency risk |  |
FINANCIAL INSTRUMENTS |  |
Percentage of change | 5.00% | 5.00%
Impact on income statement based on change in assumption | R$ 113,778 | R$ 19,036
Foreign currency risk | Cross currency swap |  |
FINANCIAL INSTRUMENTS |  |
Percentage of change | 5.00% | 5.00%
Impact on income statement based on change in assumption | R$ 9,507 | R$ 0
Interest rate risk |  |
FINANCIAL INSTRUMENTS |  |
Interest rate change (as a percent) | 0.10% | 0.10%
Impact on income statement based on change in assumption | R$ 32,377 | R$ 55,964
Products sold price risk |  |
FINANCIAL INSTRUMENTS |  |
Percentage of change | 1.00% | 1.00%
Impact on income statement based on change in assumption | R$ 824,122 | R$ 783,451
Raw materials and commodity price risk |  |
FINANCIAL INSTRUMENTS |  |
Percentage of change | 1.00% | 1.00%
Impact on income statement based on change in assumption | R$ 486,066 | R$ 437,210
Commodity contracts |  |
FINANCIAL INSTRUMENTS |  |
Percentage of change | 5.00% | 5.00%
Impact on income statement based on change in assumption | R$ 2,899 | R$ 4,892

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