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4. CASH AND CASH EQUIVALENTS (Tables)
12 Months Ended
Dec. 31, 2020
Cash And Cash Equivalents  
Schedule of cash and cash equivalents
    Consolidated
  12/31/2020   12/31/2019
Cash and banks      
In Brazil  245,185   42,736
Abroad  3,899,282    454,033
   4,144,467    496,769
       
Investments      
In Brazil  5,800,119    531,924
Abroad     60,262
   5,800,119    592,186
   9,944,586    1,088,955