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 |