Benefit Plans - Reconciliation of Changes in Benefit Obligations and Fair Value of Plan Assets (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Reconciliation of Fair Value of Plan Assets:
Beginning balance	$ 460.0
Fair value of plan assets ending balance	443.5	$ 460.0
Pension Benefits | U.S. Plans
Reconciliation of Benefit Obligations:
Beginning balance	319.8	441.8
Service cost	0.1	4.4	$ 5.3
Interest cost	15.7	11.3	10.8
Plan amendments	0.0	0.0
Actuarial losses (gains)	6.0	(105.0)
Benefit payments	(16.1)	(26.5)
Plan settlements	(31.5)	(6.2)
Effect of foreign currency exchange rate changes	0.0	0.0
Benefit obligations ending balance	294.0	319.8	441.8
Reconciliation of Fair Value of Plan Assets:
Beginning balance	263.6	384.7
Actual return on plan assets	18.7	(92.5)
Employer contributions	2.8	4.1
Benefit payments	(16.1)	(26.5)
Plan settlements	(31.5)	(6.2)
Effect of foreign currency exchange rate changes	0.0	0.0
Fair value of plan assets ending balance	237.5	263.6	384.7
Funded Status as of Period End	(56.5)	(56.2)
Pension Benefits | Non-U.S. Plans
Reconciliation of Benefit Obligations:
Beginning balance	247.5	396.2
Service cost	2.6	3.3	4.3
Interest cost	11.1	5.9	4.6
Plan amendments	0.3	0.0
Actuarial losses (gains)	3.3	(112.0)
Benefit payments	(13.6)	(11.2)
Plan settlements	0.0	0.0
Effect of foreign currency exchange rate changes	12.0	(34.7)
Benefit obligations ending balance	263.2	247.5	396.2
Reconciliation of Fair Value of Plan Assets:
Beginning balance	196.4	297.7
Actual return on plan assets	6.7	(66.9)
Employer contributions	6.6	5.9
Benefit payments	(13.6)	(11.2)
Plan settlements	0.0	0.0
Effect of foreign currency exchange rate changes	9.9	(29.1)
Fair value of plan assets ending balance	206.0	196.4	297.7
Funded Status as of Period End	(57.2)	(51.1)
Other Postretirement Benefits
Reconciliation of Benefit Obligations:
Beginning balance	21.0	28.7
Service cost	0.0	0.0
Interest cost	0.9	0.7	0.6
Plan amendments	0.0	0.0
Actuarial losses (gains)	(1.0)	(5.0)
Benefit payments	(2.7)	(3.3)
Plan settlements	0.0	0.0
Effect of foreign currency exchange rate changes	0.1	(0.1)
Benefit obligations ending balance	18.3	21.0	$ 28.7
Reconciliation of Fair Value of Plan Assets:
Funded Status as of Period End	$ (18.3)	$ (21.0)