v3.25.4
Personnel expenses - Pension (Details) - SEK (kr)
kr in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Disclosure of net defined benefit liability (asset) [line items]        
Service cost kr (3) kr (3) kr (3)  
Interest cost, net 0 (1) (1)  
Pension cost for defined benefit pensions, incl. payroll tax (3) (4) (4)  
Pension cost for defined contribution pension cost incl. payroll tax (72) (66) (66)  
Pension cost recognized in personnel costs (75) (70) (70)  
Revaluation of defined benefit plans [1] (10) (9) (6)  
Provision for pensions, net obligation 8 7 10 kr 8
Defined benefit obligations        
Disclosure of net defined benefit liability (asset) [line items]        
Revaluation of defined benefit plans 12 2 (22)  
Provision for pensions, net obligation 174 188 191 167
Plan assets        
Disclosure of net defined benefit liability (asset) [line items]        
Revaluation of defined benefit plans (12) 8 (5)  
Provision for pensions, net obligation (195) (200) (181) kr (180)
Restriction due to the asset ceiling        
Disclosure of net defined benefit liability (asset) [line items]        
Revaluation of defined benefit plans (9) (19) kr 21  
Provision for pensions, net obligation kr 28 kr 19    
[1]
1    The entire equity is attributable to the shareholder of the Parent Company.