Income Taxes Change in Valuation Allowances (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Summary of Valuation Allowances
Beginning balance		$ 197.1	$ 164.2	$ 211.0
(Reversed) charged to costs and expenses		(45.1)	17.3	(24.9)
Charged (reversed) to gross tax assets and other accounts 1	[1]	0.9	9.9	(19.8)
Foreign currency translation		(6.9)	5.7	(2.1)
Ending balance		146.0	197.1	164.2
Foreign Income Tax Expense (Benefit), Continuing Operations		106.7	75.8	$ 83.7
Deferred Tax Assets, Operating Loss Carryforwards, Components [Abstract]
Operating Loss Carryforwards			1,065.5
Undistributed Earnings of Foreign Subsidiaries		1,364.4	1,080.2
Changes in non-US tax law [Member]
Summary of Valuation Allowances
Foreign Income Tax Expense (Benefit), Continuing Operations		10.4
Deferred Tax Assets, Operating Loss Carryforwards, Components [Abstract]
Undistributed Earnings of Foreign Subsidiaries		120.0
Restructuring actions taken within foreign subsidiaries [Member]
Summary of Valuation Allowances
Foreign Income Tax Expense (Benefit), Continuing Operations		3.2
Deferred Tax Assets, Operating Loss Carryforwards, Components [Abstract]
Undistributed Earnings of Foreign Subsidiaries		$ 46.0
Foreign Tax Authority
Deferred Tax Assets, Operating Loss Carryforwards, Components [Abstract]
Deferred Tax Assets, Operating Loss Carryforwards, Not Subject to Expiration			947.5
Deferred Tax Assets, Operating Loss Carryforwards, Subject to Expiration			118.0
State and Local Jurisdiction
Deferred Tax Assets, Operating Loss Carryforwards, Components [Abstract]
Deferred Tax Assets, Operating Loss Carryforwards, Subject to Expiration			$ 32.6

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