XML 75 R63.htm IDEA: XBRL DOCUMENT v3.25.2
PENSION AND OTHER POST-RETIREMENT BENEFITS - Components of Net Periodic Pension Cost (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Retirement Benefits [Abstract]        
Service cost $ 3.2 $ 2.5 $ 5.2 $ 5.1
Interest cost 7.0 4.6 12.2 9.3
Expected return on plan assets (8.1) (5.0) (14.1) (10.1)
Amortization of net gain (0.2) (0.1) (0.3) (0.2)
Net periodic pension cost $ 1.9 $ 2.0 $ 3.0 $ 4.1