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EXPENSES BY NATURE - Classified by function (Details) - BRL (R$)
R$ in Thousands
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
EXPENSES BY NATURE      
Cost of sales R$ (63,661,156) R$ (57,527,721) R$ (37,884,102)
Selling expenses (733,026) (715,830) (512,950)
General and administrative expenses (1,454,592) (1,390,121) (1,017,435)
Other operating income 246,313 979,760 1,763,684
Other operating expenses (210,042) (460,029) (645,985)
Eletrobras compulsory loan recovery   1,391,280  
Results in operations with subsidiary and joint ventures   (162,913)  
Impairment of financial assets (81) 357 (64,132)
Impairment of non-financial assets 0 0 (411,925)
Total Expenses R$ (65,812,584) R$ (57,885,217) R$ (38,772,845)