v3.26.1
Pension plan and other post-employment benefits (Details 3)
R$ in Thousands
 12 Months Ended
Dec. 31, 2025
BRL (R$)
P B S [Member]  
IfrsStatementLineItems [Line Items]  
Value of obligations on beginning balance R$ 32,363
Current service cost
Interest on actuarial liability 3,282
Benefits paid in the year (3,144)
Contributions paid by participants
(Gains)/losses in obligations (1,609)
Value of obligations on ending balance 30,892
P B S Assisted [Member]  
IfrsStatementLineItems [Line Items]  
Value of obligations on beginning balance 8,704
Current service cost
Interest on actuarial liability 895
Benefits paid in the year (944)
Contributions paid by participants
(Gains)/losses in obligations (336)
Value of obligations on ending balance 8,319
Administration Agreement [Member]  
IfrsStatementLineItems [Line Items]  
Value of obligations on beginning balance 96
Current service cost
Interest on actuarial liability 10
Benefits paid in the year (9)
Contributions paid by participants
(Gains)/losses in obligations (30)
Value of obligations on ending balance 67
P A M E C Asset Policy [Member]  
IfrsStatementLineItems [Line Items]  
Value of obligations on beginning balance 1,080
Current service cost
Interest on actuarial liability 112
Benefits paid in the year (99)
Contributions paid by participants
(Gains)/losses in obligations 10
Value of obligations on ending balance 1,103
A E S Telecom [Member]  
IfrsStatementLineItems [Line Items]  
Value of obligations on beginning balance 10,549
Current service cost
Interest on actuarial liability 1,090
Benefits paid in the year (653)
Contributions paid by participants
(Gains)/losses in obligations (1,487)
Value of obligations on ending balance 9,499
Medical Plan [Member]  
IfrsStatementLineItems [Line Items]  
Value of obligations on beginning balance 2,381
Current service cost 112
Interest on actuarial liability 254
Benefits paid in the year (2)
Contributions paid by participants
(Gains)/losses in obligations 637
Value of obligations on ending balance R$ 3,382