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24. LOANS, FINANCING AND DEBENTURES (Detaills 4) - United States of America, Dollars | Dec. 31, 2019 | Dec. 31, 2018
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IPCA [Member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Accumulated change | 4.02% | 17.13%
Accumulated change | 4.31% | 3.75%
CDI [Member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Accumulated change | 5.97% | 6.40%
TJLP [Member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Accumulated change | (20.20%) | (0.29%)

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