Employee Benefit Plans (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Defined Benefit Plan Disclosure [Line Items]
Amortization period for gains and losses, period 1	3 years
Amortization period for gains and losses, period 2	5 years
Postemployment benefits liability	$ 6.5	$ 9.1
Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Weighted average discount rate	2.15%	1.53%
Rate of return on assets	2.45%
Supplemental Employee Retirement Plan
Defined Benefit Plan Disclosure [Line Items]
Qualified pension plans, benefit obligations	$ 6.7	$ 7.6
Minimum | U.S. Pension and Postretirement Plans
Defined Benefit Plan Disclosure [Line Items]
Expected contributions related to continuing operations	10.0
Maximum | U.S. Pension and Postretirement Plans
Defined Benefit Plan Disclosure [Line Items]
Expected contributions related to continuing operations	15.0
Non-U.S. Plans | Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Qualified pension plans, benefit obligations	671.2	767.5	$ 685.9
Qualified pension plans, plan assets	$ 764.4	$ 762.0	$ 695.4
Weighted average discount rate	2.09%	1.45%
Rate of return on assets	2.32%	2.55%	5.27%
UK Defined Contribution Plan
Defined Benefit Plan Disclosure [Line Items]
Employer match toward contributions, doubled	5.00%
Maximum contribution percent of eligible compensation	10.00%
Employer contribution	$ 8.1	$ 7.6	$ 7.5
Personal Savings Account Plan
Defined Benefit Plan Disclosure [Line Items]
Employer contribution	$ 0.9	1.0	$ 1.3
Maximum employee contribution to plan	25.00%
Maximum contribution for eligible participants	3.00%
Employer match toward contributions, fifty cents for dollar, minimum	4.00%
Employer match toward contributions, fifty cents for dollar, maximum	6.00%
Retirement Savings Account Plan
Defined Benefit Plan Disclosure [Line Items]
Employer match toward contributions, fifty cents for dollar, minimum	3.00%
Employer match toward contributions, fifty cents for dollar, maximum	6.00%
Vesting period	3 years
U.S. Qualified Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Qualified pension plans, benefit obligations	$ 53.6	60.4
Qualified pension plans, plan assets	54.3	59.7
UK Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Qualified pension plans, benefit obligations	492.0	545.5
Qualified pension plans, plan assets	$ 653.6	$ 648.4
Rate of return on assets	2.10%
UK Pension Plan | Liability Driven Investments
Defined Benefit Plan Disclosure [Line Items]
Liability driven investments allocation	76.00%
UK Pension Plan | Equity Securities, Emerging Market Debt and High Yield Securities
Defined Benefit Plan Disclosure [Line Items]
Equity securities allocation	24.00%