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24. LOANS, FINANCING AND DEBENTURES (Detaills 4) - United States of America, Dollars
Dec. 31, 2019
Dec. 31, 2018
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%)