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EMPLOYEE BENEFITS (Details 1) - BRL (R$)
R$ in Thousands
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
IfrsStatementLineItems [Line Items]        
Liabilities (Assets), net R$ (35,477) R$ (59,111)    
Defined benefit plans other than multi-employer plans, state plans and plans that share risks between entities under common control [member]        
IfrsStatementLineItems [Line Items]        
Present value of defined benefit obligation 3,110,848 3,151,609 R$ 3,645,822 R$ 3,581,460
Fair value of plan assets (3,572,869) (3,584,244) (3,766,194)  
Surplus (462,021) (432,635) (120,372)  
Restriction to actuarial assets due to recovery limitation 426,544 373,524 186,099  
Liabilities (Assets), net R$ (35,477) R$ (59,111) R$ 65,727