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FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT - Risk classification of trade accounts receivable (Details) - BRL (R$)
R$ in Thousands
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT      
Expected credit losses R$ 95,053 R$ 105,989 R$ 91,258
Trade accounts receivable      
FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT      
Expected credit losses 31,962 21,109 R$ 34,763
Credit risk [member] | Trade accounts receivable      
FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT      
Credit risk exposure 6,880,416 9,628,121  
Expected credit losses 31,962 21,109  
Credit risk [member] | Trade accounts receivable | Low | Current and overdue to up 30 days      
FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT      
Credit risk exposure 6,549,975 9,430,244  
Credit risk [member] | Trade accounts receivable | Average | Later than one month and not later than three months [member]      
FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT      
Credit risk exposure 156,883 129,900  
Credit risk [member] | Trade accounts receivable | High | Overdue more than 90 days      
FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT      
Credit risk exposure R$ 173,558 R$ 67,977