v3.26.3
Pension and other Postretirement Benefits - Narrative (Schedule of Net Benefit Costs) (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Retirement Benefits [Abstract]        
Defined Benefit Plan, Interest Cost $ 7.4 $ 7.8 $ 22.2 $ 23.2
Defined Benefit Plan, Expected Return (Loss) on Plan Assets (8.2) (7.4) (24.4) (21.9)
Defined Benefit Plan, Amortization of Gain (Loss) 0.2 0.2 0.6 0.6
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) $ (1.0) $ 0.2 $ (2.8) $ 0.7