v3.26.1
Post-employment benefits - Schedule of Maturity Profile of Defined Benefit Liabilities (Details)
R$ in Millions
12 Months Ended
Dec. 31, 2025
BRL (R$)
Disclosure of defined benefit plans [line items]  
2026 R$ 2,050
2027 2,092
2028 2,124
2029 2,181
2030 2,235
2031 to 2035 R$ 11,815
Pension plan - FIU  
Disclosure of defined benefit plans [line items]  
Duration 7 years 11 months 12 days
2026 R$ 1,219
2027 1,263
2028 1,305
2029 1,345
2030 1,383
2031 to 2035 R$ 7,381
Pension plan - FUNBEP  
Disclosure of defined benefit plans [line items]  
Duration 7 years 4 months 17 days
2026 R$ 740
2027 757
2028 774
2029 789
2030 803
2031 to 2035 R$ 4,169
Other post-employment benefits  
Disclosure of defined benefit plans [line items]  
Duration 7 years 5 months 1 day
2026 R$ 91
2027 72
2028 45
2029 47
2030 49
2031 to 2035 R$ 265