v3.25.4
PENSIONS PLANS AND OTHER POST-EMPLOYMENT BENEFITS (Details 6) - BRL (R$)
R$ in Thousands
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
PENSION PLANS AND OTHER POST-EMPLOYMENT BENEFITS    
Balance at the beginning of the year R$ (571,513) R$ (1,003,035)
Distribution of reserves (88,452) (39,568)
Balance at the end of the year (603,639) (571,513)
Plan assets [member]    
PENSION PLANS AND OTHER POST-EMPLOYMENT BENEFITS    
Balance at the beginning of the year (4,043,954) (4,154,533)
Benefits paid (269,614) (254,727)
Participants contributions paid 233 182
Sponsor contributions paid 1,349 1,615
Interest income on plan assets (441,134) (363,224)
Return on plan assets excluding interest income (311,417) (181,305)
Distribution of reserves 87,290 39,568
Balance at the end of the year (3,818,349) (4,043,954)
Defined benefit plans other than multi-employer plans, state plans and plans that share risks between entities under common control    
PENSION PLANS AND OTHER POST-EMPLOYMENT BENEFITS    
Balance at the beginning of the year 91,892 (5,971)
Distribution of reserves (87,290) (39,568)
Balance at the end of the year 117,397 91,892
Defined benefit plans other than multi-employer plans, state plans and plans that share risks between entities under common control | Plan assets [member]    
PENSION PLANS AND OTHER POST-EMPLOYMENT BENEFITS    
Balance at the beginning of the year (3,158,617) (3,233,947)
Benefits paid (195,914) (188,315)
Participants contributions paid 233 182
Sponsor contributions paid 1,297 1,566
Interest income on plan assets (347,122) (282,696)
Return on plan assets excluding interest income (252,351) (131,891)
Distribution of reserves 87,290 39,568
Balance at the end of the year (2,971,714) (3,158,617)
Post-retirement health plans    
PENSION PLANS AND OTHER POST-EMPLOYMENT BENEFITS    
Balance at the beginning of the year (663,405) (997,064)
Benefits paid 87,101  
Participants contributions paid 0  
Interest income on plan assets (164,466)  
Distribution of reserves (1,162) 0
Balance at the end of the year (721,036) (663,405)
Post-retirement health plans | Plan assets [member]    
PENSION PLANS AND OTHER POST-EMPLOYMENT BENEFITS    
Balance at the beginning of the year (885,337) (920,586)
Benefits paid (73,700) (66,412)
Participants contributions paid 0 0
Sponsor contributions paid 52 49
Interest income on plan assets (94,012) (80,528)
Return on plan assets excluding interest income (59,066) (49,414)
Distribution of reserves 0 0
Balance at the end of the year R$ (846,635) R$ (885,337)