Pensions and Postretirement Benefits (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Percent of our projected benefit obligation relates to plans that are not funded	5.00%
Deferred compensation and other retirement plans	$ 13.9	$ 13.8
Pension Plans
Projected pension expense	2.0
Defined Benefit Plan, Expected Future Employer Contributions, Next Fiscal Year	5.0
U.S.
Defined Contribution Plan, Cost	31.7	23.0	$ 18.3
Defined Benefit Plan, Expected Future Benefit Payment, Next Twelve Months	22.1
U.S. | Pension Plans
Company contributions	15.9	0.5	6.2
Prefunded 2023 Contributions		8.2
Non-US
Accumulated benefit obligation for all defined benefit pension plans	7.6
Defined Contribution Plan, Cost	10.1	8.8	8.6
Defined Benefit Plan, Expected Future Benefit Payment, Next Twelve Months	15.0
Non-US | Pension Plans
Company contributions	$ 5.0	$ 5.5	$ 6.0