v3.26.1
Post-employment benefits - Schedule of Defined Benefit Contribution (Details) - BRL (R$)
R$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Disclosure of defined benefit plans [line items]    
Estimated contributions R$ 150  
Contributions made 216 R$ 523
Pension plan - FIU    
Disclosure of defined benefit plans [line items]    
Estimated contributions 21  
Contributions made 69 70
Retirement plan - FUNBEP    
Disclosure of defined benefit plans [line items]    
Estimated contributions 129  
Contributions made R$ 147 R$ 453