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21. TAXES PAYABLE AND AMOUNTS TO BE REFUNDED TO CUSTOMERS (Tables)
12 Months Ended
Dec. 31, 2020
Disclosure of taxes, income tax and social contribution tax [abstract]  
Schedule of taxes and amounts to be restituted to customers
    2020    

2019

(Restated) 

   

01/01/2019

(Restated)

 
Current                  
ICMS     112       112       168  
COFINS (2)     184       177       182  
PIS/PASEP (2)     41       39       39  
INSS     29       25       23  
Others (1)     140       58       41  
      506       411       453  
                         
Non-current                        
COFINS (3)     216       186       206  
PIS/PASEP  (3)     47       41       43  
      263       227       249  
      769       638       702  
                         
Amounts to be refunded to customers                        
Current                        
PIS/PASEP and COFINS     448       —         —    
Non-current                        
PIS/PASEP and COFINS     3,570       4,193       1,124  
      4,018       4,193       1,124  
(1) This includes the withholding income tax on Interest on equity paid in January 2020, in accordance with the tax legislation.
(2) Includes Cofins and PIS/Pasep recognized in current liability includes the deferred taxes related to the interest revenue arising from the financing component in contract asset and to the revenue of construction and upgrade associated with the transmission concession contract, whose consideration will be received in at least twelve months after the reporting period. For more information, see note 2.8 and 15.
(3) The deferral of PIS/Pasep and Cofins taxes related to the interest revenue arising from the financing component in contract asset and to the revenue of construction and upgrade associated with the transmission concession contract, whose consideration will be received in at least twelve months after the reporting period. For more information, see note 2.8 and 15.