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Cash and Cash Equivalents (Tables)
 12 Months Ended
Dec. 31, 2021
Text block [abstract]  
Summary of Cash and Cash Equivalents
 
  
2021
 
  
2020
 
  
2019
 
Cash and banks
      22,923        14,843        6,983  
Short-term investments
(1)
      9,566        5,189        52,079  
Financial assets at fair value with changes in results
(2)
      30,189        34,586        7,038  
    
 
 
     
 
 
     
 
 
  
       62,678        54,618        66,100  
    
 
 
     
 
 
     
 
 
  
(1)
Includes term deposits and other invetsments with the BNA for 1,075, 2,000 and 10,043 as of December 31, 2021, 2020 and 2019, respectively.
(2)
See Note 6.