v3.26.1
FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT - Fair value hierarchy (Details) - At fair value - BRL (R$)
R$ in Thousands
Dec. 31, 2025
Dec. 31, 2024
Disclosure of detailed information about financial instruments [line items]    
Financial assets R$ 46,822,460 R$ 40,671,678
Financial liabilities 9,341,349 10,454,820
At fair value through profit or loss    
Disclosure of detailed information about financial instruments [line items]    
Financial liabilities 9,341,349 10,454,820
At fair value through profit or loss | Derivative financial instruments    
Disclosure of detailed information about financial instruments [line items]    
Financial liabilities 9,341,349 10,454,820
Level 1    
Disclosure of detailed information about financial instruments [line items]    
Financial assets 2,140,425 2,303,646
Level 2    
Disclosure of detailed information about financial instruments [line items]    
Financial assets 18,549,676 16,046,835
Financial liabilities 9,341,349 10,454,820
Level 2 | At fair value through profit or loss    
Disclosure of detailed information about financial instruments [line items]    
Financial liabilities 9,341,349 10,454,820
Level 2 | At fair value through profit or loss | Derivative financial instruments    
Disclosure of detailed information about financial instruments [line items]    
Financial liabilities 9,341,349 10,454,820
Level 3    
Disclosure of detailed information about financial instruments [line items]    
Financial assets 26,132,359 22,321,197
At fair value through profit or loss    
Disclosure of detailed information about financial instruments [line items]    
Financial assets 19,824,115 17,250,611
At fair value through profit or loss | Level 1    
Disclosure of detailed information about financial instruments [line items]    
Financial assets 1,274,439 1,203,776
At fair value through profit or loss | Level 2    
Disclosure of detailed information about financial instruments [line items]    
Financial assets 18,549,676 16,046,835
At fair value through profit or loss | Derivative financial instruments    
Disclosure of detailed information about financial instruments [line items]    
Financial assets 9,571,661 3,887,100
At fair value through profit or loss | Derivative financial instruments | Level 2    
Disclosure of detailed information about financial instruments [line items]    
Financial assets 9,571,661 3,887,100
At fair value through profit or loss | Marketable securities    
Disclosure of detailed information about financial instruments [line items]    
Financial assets 10,252,454 13,363,511
At fair value through profit or loss | Marketable securities | Level 1    
Disclosure of detailed information about financial instruments [line items]    
Financial assets 1,274,439 1,203,776
At fair value through profit or loss | Marketable securities | Level 2    
Disclosure of detailed information about financial instruments [line items]    
Financial assets 8,978,015 12,159,735
At fair value through other comprehensive income    
Disclosure of detailed information about financial instruments [line items]    
Financial assets 901,181 1,138,066
At fair value through other comprehensive income | Level 1    
Disclosure of detailed information about financial instruments [line items]    
Financial assets 865,986 1,099,870
At fair value through other comprehensive income | Level 3    
Disclosure of detailed information about financial instruments [line items]    
Financial assets 35,195 38,196
At fair value through other comprehensive income | Other investments    
Disclosure of detailed information about financial instruments [line items]    
Financial assets 901,181 1,138,066
At fair value through other comprehensive income | Other investments | Level 1    
Disclosure of detailed information about financial instruments [line items]    
Financial assets 865,986  
At fair value through other comprehensive income | Other investments | Level 3    
Disclosure of detailed information about financial instruments [line items]    
Financial assets 35,195 38,196
Financial assets at amortised cost, category [member]    
Disclosure of detailed information about financial instruments [line items]    
Financial assets 26,097,164 22,283,001
Financial assets at amortised cost, category [member] | Level 3    
Disclosure of detailed information about financial instruments [line items]    
Financial assets 26,097,164 22,283,001
Financial assets at amortised cost, category [member] | Biological assets [domain]    
Disclosure of detailed information about financial instruments [line items]    
Financial assets 26,097,164 22,283,001
Financial assets at amortised cost, category [member] | Biological assets [domain] | Level 3    
Disclosure of detailed information about financial instruments [line items]    
Financial assets R$ 26,097,164 R$ 22,283,001