XML 86 R71.htm IDEA: XBRL DOCUMENT v3.22.4
EMPLOYEE BENEFIT PLANS - Components of Net Period Benefit Cost (Details) - USD ($)
$ in Millions
 3 Months Ended 12 Months Ended
Dec. 31, 2020
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Pension Benefits        
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract]        
Service Cost   $ 4.1 $ 4.7 $ 3.0
Interest Cost   14.1 14.2 15.3
Expected return on plan assets   (22.4) (26.9) (25.3)
Mark-to-market actuarial net losses (gains)   31.4 11.9 (10.8)
Curtailment $ (5.3) 0.0 (0.6) (6.4)
Net periodic cost (benefit)   27.2 3.3 (24.2)
Health Care Benefits        
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract]        
Service Cost   0.0 0.1 0.1
Interest Cost   0.4 0.5 0.4
Expected return on plan assets   0.0 0.0 0.0
Mark-to-market actuarial net losses (gains)   (2.9) (1.6) 0.0
Curtailment   0.0 (0.3) 0.0
Net periodic cost (benefit)   $ (2.4) $ (1.3) $ 0.5