2020 Global Restructuring Plan Rollforward (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Restructuring Cost and Reserve [Line Items]
Restructuring liability - January 1	$ 19.1	$ 7.5
Restructuring costs	9.6	43.0	$ 12.8
Cash payments	(16.5)	(33.0)
Asset write-offs	0.6	0.0
Foreign exchange translation and other	(0.6)	1.6
Restructuring liability - December 31	11.0	19.1	7.5
2020 Global Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Restructuring liability - January 1	17.1	0.0
Restructuring costs	2.5	43.8
Cash payments	(13.6)	(27.9)
Asset write-offs	0.6	0.0
Foreign exchange translation and other	(0.6)	1.2
Restructuring liability - December 31	$ 4.8	$ 17.1	$ 0.0