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INVENTORIES - Summary (Details) - BRL (R$)
R$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
INVENTORIES    
Inventories, Book Value R$ 16,861,488 R$ 9,169,417
Gross cost    
INVENTORIES    
Finished products 7,209,379 3,894,698
Work in progress 3,453,948 2,045,158
Raw materials 3,994,655 1,934,958
Storeroom supplies 1,061,666 786,401
Imports in transit 1,145,215 514,321
Accumulated impairment losses    
INVENTORIES    
Inventories, Book Value R$ (3,375) R$ (6,119)