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EMPLOYEE BENEFITS (Details) - BRL (R$)
R$ in Thousands
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
IfrsStatementLineItems [Line Items]        
Actuarial assets R$ (35,477) R$ (59,111)    
Actuarial liabilities 537,290 584,288 R$ 678,880  
Defined benefit plans other than multi-employer plans, state plans and plans that share risks between entities under common control [member]        
IfrsStatementLineItems [Line Items]        
Actuarial assets (35,477) (59,111) 65,727  
Post Employment Healthcare Benefits [Member]        
IfrsStatementLineItems [Line Items]        
Actuarial liabilities R$ 537,290 R$ 584,288 R$ 678,880 R$ 892,396