Pension and Postretirement Benefits (Projected Benefit Obligation, Accumulated Benefit Obligation and Fair Value of Plan Assets) (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
U.S.
Defined Benefit Plan Disclosure [Line Items]
Projected benefit obligation		$ 0.0
Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Projected benefit obligation	$ 77.6	67.7	$ 99.5
Accumulated benefit obligation	76.3	66.4
Fair value of plan assets	83.5	79.2	$ 105.4
Pension Benefits | U.S.
Defined Benefit Plan Disclosure [Line Items]
Projected benefit obligation	0.4	0.0
Accumulated benefit obligation	0.4	0.0
Fair value of plan assets	0.0	0.0
Pension Benefits | Non-U.S.
Defined Benefit Plan Disclosure [Line Items]
Projected benefit obligation	77.2	67.7
Accumulated benefit obligation	75.9	66.4
Fair value of plan assets	$ 83.5	$ 79.2