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SHORT-TERM DEBT AND LONG-TERM DEBT - Principal and Interest (Details) - BRL (R$) R$ in Thousands | Dec. 31, 2020 | Dec. 31, 2019
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SHORT-TERM DEBT AND LONG-TERM DEBT |  |
Principal amount of loans and Financing | R$ 14,413,188 | R$ 12,958,565
Interest accrued of loans and Financing | 199,746 | 180,258
Total Loans and Financing | R$ 14,612,934 | R$ 13,138,823

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