Income Taxes Change in Valuation Allowances (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Summary of Valuation Allowances
Beginning balance		$ 145.8	$ 146.0	$ 197.1
Charged (reversed) to costs and expenses		13.8	8.9	(45.1)
Charged to gross tax assets and other accounts 1	[1]	(2.1)	0.6	0.9
Foreign currency translation		5.0	(9.7)	(6.9)
Ending balance		162.5	145.8	146.0
Foreign Income Tax Expense (Benefit), Continuing Operations		165.1	150.2	$ 106.7
Deferred Tax Assets, Operating Loss Carryforwards, Components [Abstract]
Operating Loss Carryforwards		918.1
Undistributed Earnings of Foreign Subsidiaries		1,633.6	$ 1,496.9
Foreign Tax Authority
Deferred Tax Assets, Operating Loss Carryforwards, Components [Abstract]
Deferred Tax Assets, Operating Loss Carryforwards, Not Subject to Expiration		834.3
Deferred Tax Assets, Operating Loss Carryforwards, Subject to Expiration		83.8
State and Local Jurisdiction
Deferred Tax Assets, Operating Loss Carryforwards, Components [Abstract]
Deferred Tax Assets, Operating Loss Carryforwards, Subject to Expiration		$ 22.9

[1] Primarily represents changes to the valuation allowance related to the change of a corresponding deferred tax asset.