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FINANCIAL INSTRUMENTS AND RISK MANAGEMENT (Details 12) - Cash flow hedges [member]
R$ in Thousands
 12 Months Ended
Dec. 31, 2022
BRL (R$)
Number
IfrsStatementLineItems [Line Items]  
Derivative instrument, Fair value | R$ R$ (548,639) [1]
Currency risk [member] | Bond B R F S A B R F S B Z 395 [Member]  
IfrsStatementLineItems [Line Items]  
Hedged object USD Exports 
Hedged object USD
Maturity 2nd Qtr. 2023
Notional 150,000
Designation rate 2.0387
Rate 5.6963
Derivative instrument, Fair value | R$ R$ (548,639) [1]
[1] Average discontinuance rates.