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SUPPLIERS (Tables)
 12 Months Ended
Dec. 31, 2021
Disclosure Suppliers Abstract  
Schedule of suppliers

 Schedule of suppliers

     2021    2020
Energy on spot market – CCEE   130    490 
Charges for use of energy network   175    192 
Energy purchased for resale   1,314    808 
Itaipu Binacional   331    325 
Gas purchased for resale   228    127 
Materials and services   505    416 
 Suppliers   2,683    2,358