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EMPLOYEE BENEFITS - Defined benefit pension plan - Variation of the plan assets (Details) - Defined benefit pension plan - BRL (R$)
R$ in Thousands
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
EMPLOYEE BENEFITS      
Fair value of the plan assets at the beginning of the year R$ (1,083,719)    
Return of the plan assets 150,700 R$ 136,933 R$ 156,475
Remeasurement 1,058,898 457,421 (467,106)
Fair value of plan assets at the end of the year (658,492) (1,083,719)  
Plan assets      
EMPLOYEE BENEFITS      
Fair value of the plan assets at the beginning of the year 4,647,361 4,652,000 3,656,891
Return of the plan assets 150,700 136,933 156,475
Contributions from sponsors 173,316 244,123 224,979
Settlement   (228,034) (179,339)
Payment of benefits (317,779) (486,310) (434,650)
Remeasurement (791,672) 25,498 334,675
Exchange Variance (362,451) 303,151 892,969
Fair value of plan assets at the end of the year 3,499,475 4,647,361 R$ 4,652,000
Value of shares included in fair value of plan assets R$ 10,084 R$ 17,785