v3.26.1
BENEFIT PLANS - Schedule of Components of Net Periodic Benefit Cost - Pension Benefits) (Details) - Pension Plans, Defined Benefit - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract]    
Service cost $ 0.5 $ 0.5
Interest cost 7.8 8.3
Expected return on plan assets (9.0) (7.8)
Amortization of actuarial loss 1.2 1.2
Net periodic pension benefit cost 0.5 2.2
Pretax amortization from AOCI $ 1.2 $ 1.2