Employee Benefit Plans Change in Projected Benefit Obligation Amount (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Pension Plan | UNITED STATES
Defined Benefit Plan, Change in Benefit Obligation
Benefit Obligation at Beginning of Year		$ 1,575.3	$ 1,585.5
Service Cost		9.2	9.2	$ 7.7
Interest Cost		82.9	87.9	67.2
Plan Participant Contributions		0.0	0.0
Defined Benefit Plan, Benefit Obligation, Actuarial Gain (Loss)	[1]	(57.7)	61.0
Benefits and Expenses Paid		(91.1)	(168.3)
Change in Foreign Exchange Rates		0.0	0.0
Benefit Obligation at End of Year		1,518.6	1,575.3	1,585.5
Defined Benefit Plan, Change in Fair Value of Plan Assets
Fair Value of Plan Assets at Beginning of Year		1,295.9	1,308.3
Defined Benefit Plan, Plan Assets, Increase (Decrease) for Actual Return (Loss)		27.1	145.6
Employer Contributions to Defined Benefit Plan		9.7	10.3
Plan Participant Contributions		0.0	0.0
Benefits and Expenses Paid		(91.1)	(168.3)
Effect of Foreign Exchange Rates on Plan Assets		0.0	0.0
Fair Value of Plan Assets at End of Year		1,241.6	1,295.9	1,308.3
Accumulated Benefit Obligation		1,518.6	1,575.3
Underfunded Status of Plan		277.0	279.4
Pension Plan | Foreign Plan
Defined Benefit Plan, Change in Benefit Obligation
Benefit Obligation at Beginning of Year		172.3	157.9
Service Cost		0.0	0.0	0.0
Interest Cost		7.6	7.7	5.0
Plan Participant Contributions		0.0	0.0
Defined Benefit Plan, Benefit Obligation, Actuarial Gain (Loss)	[1]	(19.3)	3.8
Benefits and Expenses Paid		(5.9)	(5.7)
Change in Foreign Exchange Rates		(2.6)	8.6
Benefit Obligation at End of Year		152.1	172.3	157.9
Defined Benefit Plan, Change in Fair Value of Plan Assets
Fair Value of Plan Assets at Beginning of Year		145.4	140.5
Defined Benefit Plan, Plan Assets, Increase (Decrease) for Actual Return (Loss)		(12.1)	3.1
Employer Contributions to Defined Benefit Plan		0.0	0.0
Plan Participant Contributions		0.0	0.0
Benefits and Expenses Paid		(5.9)	(5.7)
Effect of Foreign Exchange Rates on Plan Assets		(2.1)	7.5
Fair Value of Plan Assets at End of Year		125.3	145.4	140.5
Accumulated Benefit Obligation		152.1	172.3
Underfunded Status of Plan		26.8	26.9
Other Postretirement Benefit Plans
Defined Benefit Plan, Change in Benefit Obligation
Benefit Obligation at Beginning of Year		79.0	83.9
Service Cost		0.0	0.0	0.0
Interest Cost		4.0	4.5	3.0
Plan Participant Contributions		0.1	0.1
Defined Benefit Plan, Benefit Obligation, Actuarial Gain (Loss)	[1]	(1.5)	(0.5)
Benefits and Expenses Paid		(8.8)	(9.0)
Change in Foreign Exchange Rates		0.0	0.0
Benefit Obligation at End of Year		72.8	79.0	83.9
Defined Benefit Plan, Change in Fair Value of Plan Assets
Fair Value of Plan Assets at Beginning of Year		8.2	8.5
Defined Benefit Plan, Plan Assets, Increase (Decrease) for Actual Return (Loss)		0.1	0.0
Employer Contributions to Defined Benefit Plan		8.3	8.6
Plan Participant Contributions		0.1	0.1
Benefits and Expenses Paid		(8.8)	(9.0)
Effect of Foreign Exchange Rates on Plan Assets		0.0	0.0
Fair Value of Plan Assets at End of Year		7.9	8.2	$ 8.5
Underfunded Status of Plan		$ 64.9	$ 70.8

[1] The actuarial gains recognized in 2024 for the U.S., U.K., and OPEB plans were driven by increases in the discount rate assumption. The actuarial losses recognized in 2023 for the U.S. and U.K. plans were driven by decreases in the discount rate assumption. Also contributing to the actuarial loss for the U.K. plan in 2023 was unfavorable plan experience resulting from a higher than expected rate of inflation. The actuarial gain recognized in 2023 for the OPEB plan was driven by favorable plan experience, mostly offset by a decrease in the discount rate assumption.