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TRADE ACCOUNTS RECEIVABLE - Accounts receivable by aging (Details) - BRL (R$)
R$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
TRADE ACCOUNTS RECEIVABLE    
Trade accounts receivable - net, Book Value R$ 5,414,075 R$ 3,737,270
Accumulated impairment losses    
TRADE ACCOUNTS RECEIVABLE    
Trade accounts receivable - net, Book Value (107,772) (137,146)
Current | Gross cost    
TRADE ACCOUNTS RECEIVABLE    
Trade accounts receivable - net, Book Value 4,646,175 3,466,000
Past due: Up to 30 days | Gross cost    
TRADE ACCOUNTS RECEIVABLE    
Trade accounts receivable - net, Book Value 494,866 259,756
Past due: From 31 to 60 days | Gross cost    
TRADE ACCOUNTS RECEIVABLE    
Trade accounts receivable - net, Book Value 139,415 48,905
Past due: From 61 to 90 days | Gross cost    
TRADE ACCOUNTS RECEIVABLE    
Trade accounts receivable - net, Book Value 32,245 9,355
Past-due: From 91 to 180 days | Gross cost    
TRADE ACCOUNTS RECEIVABLE    
Trade accounts receivable - net, Book Value 169,959 13,636
Past-due: From 181 to 360 days | Gross cost    
TRADE ACCOUNTS RECEIVABLE    
Trade accounts receivable - net, Book Value 8,220 15,899
Past due: Above 360 days | Gross cost    
TRADE ACCOUNTS RECEIVABLE    
Trade accounts receivable - net, Book Value R$ 30,967 R$ 60,865