v3.26.1
PROVISIONS, CONTINGENT ASSETS AND LIABILITIES (Details) - BRL (R$)
R$ in Thousands
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
IfrsStatementLineItems [Line Items]      
Changes in provision R$ 18,030,353 R$ 17,897,814 R$ 20,269,055
Adjustment for inflation 1,273,404 1,245,995  
Provisions, net of (reversals and write-offs) 7,377,848 4,716,316  
Payments (8,518,713) (8,333,552)  
Changes In Other Provision Labor [Member]      
IfrsStatementLineItems [Line Items]      
Changes in provision 4,361,652 2,613,403 4,622,138
Adjustment for inflation 224,294 386,536  
Provisions, net of (reversals and write-offs) 4,953,345 2,272,455  
Payments (3,429,390) (4,667,726)  
Changes In Other Provision Civil [Member]      
IfrsStatementLineItems [Line Items]      
Changes in provision 6,918,859 7,827,251 8,587,613
Adjustment for inflation 422,466 467,504  
Provisions, net of (reversals and write-offs) 2,087,918 2,355,332  
Payments (3,418,776) (3,583,198)  
Changes In Other Provision Tax [Member]      
IfrsStatementLineItems [Line Items]      
Changes in provision 6,749,842 7,457,160 R$ 7,059,304
Adjustment for inflation 626,644 391,955  
Provisions, net of (reversals and write-offs) 336,585 88,529  
Payments R$ (1,670,547) R$ (82,628)