Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Income Tax Disclosure [Abstract]
Total before tax	$ 248.4	$ 243.9
Provision for income taxes	$ 34.7	$ 36.3
Effective tax rate (percent)	14.00%	14.90%
Discrete items, before tax
Currency remeasurement	$ 1.1	$ 1.9
Other discrete items	49.5	46.0
Tax only discrete items	0.0	0.0
Total discrete items	50.6	47.9
Continuing operations, before discrete items	299.0	291.8
Discrete Items, Tax:
Currency remeasurement	0.0	0.9
Other discrete items	2.7	3.3
Tax only discrete items	2.9	2.4
Total discrete items	5.6	6.6
Continuing operations, before discrete items	$ 40.3	$ 42.9
Estimated Annualized Effective Tax Rate (EAETR)	13.50%	14.70%