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REVENUE (Tables)
 12 Months Ended
Dec. 31, 2022
Revenue [abstract]  
Schedule of revenue
           
    12.31.2022   12.31.2021   12.31.2020
             
Energy sales in Spot Market   210   167   179
Energy sales by supply contracts   346   380   323
Fuel supply   103   104   54
Other sales   4   5   3
Generation sales subtotal   663   656   559
             
Gas sales   383   231   152
Oil sales   136   99   65
Other sales   10   10   10
Oil and gas sales subtotal   529   340   227
             
Products from catalytic reforming sales   270   185   98
Styrene sales   96   84   42
Synthetic rubber sales   106   99   49
Polystyrene sales   141   119   71
Other sales   4   3   7
Petrochemicals sales subtotal   617   490   267
             
Technical assistance and administration services sales   20   22   20
Other   -   -   -
Holding and others subtotal   20   22   20
Total revenue   1,829   1,508   1,073