Annual report [Section 13 and 15(d), not S-K Item 405]

BENEFIT PLANS - Reconciliation of Projected Benefit Obligations, Plan Assets and Funded Status of Plans (Details)

v3.25.4
BENEFIT PLANS - Reconciliation of Projected Benefit Obligations, Plan Assets and Funded Status of Plans (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Change in plan assets      
Beginning balance $ 263.1    
Ending balance   $ 263.1  
Pension Benefits      
Change in projected benefit obligation      
Benefit obligation at January 1, 441.8 466.1  
Service cost 0.6 0.8 $ 1.2
Interest cost 24.4 24.2 27.4
Actuarial loss (gain) 8.7 (9.5)  
Foreign currency exchange rate changes 0.0 0.0  
Benefits paid 39.6 39.8  
Projected benefit obligation at December 31, 435.9 441.8 466.1
Change in plan assets      
Beginning balance 331.9 363.5  
Actual return on plan assets 29.9 1.3  
Employer contributions 7.3 6.9  
Other disbursements 0.0 0.0  
Benefits paid (39.6) (39.8)  
Ending balance 329.5 331.9 363.5
Funded status of plan (106.4) (109.9)  
Other Benefits      
Change in projected benefit obligation      
Benefit obligation at January 1, 9.7 11.1  
Service cost 0.1 0.1 0.1
Interest cost 0.5 0.6 0.7
Actuarial loss (gain) 0.4 (0.7)  
Foreign currency exchange rate changes 0.1 (0.1)  
Benefits paid 1.3 1.3  
Projected benefit obligation at December 31, 9.5 9.7 11.1
Change in plan assets      
Beginning balance 10.7 10.7  
Actual return on plan assets 0.9 0.0  
Employer contributions 0.2 0.2  
Other disbursements (0.9) 0.0  
Benefits paid (1.1) (0.2)  
Ending balance 9.8 10.7 $ 10.7
Funded status of plan $ 0.3 $ 1.0