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22. LOANS, FINANCING AND DEBENTURES (Detaills 4) - United States of America, Dollars | Dec. 31, 2020 | Dec. 31, 2019
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IPCA [member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Accumulated change | 28.93% | 4.02%
Accumulated change | 4.52% | 4.31%
CDI [member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Accumulated change | 2.77% | 5.97%
TJLP [member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Accumulated change | (18.31%) | (20.20%)

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