Restructuring Costs - By Business Segment (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Restructuring Cost and Reserve [Line Items]
Expense	$ (3.8)	$ 71.7	$ (0.7)	$ 73.0
Operating Segments | Americas
Restructuring Cost and Reserve [Line Items]
Expense	0.3	13.7	2.4	14.8
Operating Segments | Asia Pacific
Restructuring Cost and Reserve [Line Items]
Expense	0.0	10.6	3.4	10.8
Operating Segments | Europe, Middle East, & Africa
Restructuring Cost and Reserve [Line Items]
Expense	(4.1)	41.4	(6.8)	42.2
Corporate
Restructuring Cost and Reserve [Line Items]
Expense	$ 0.0	$ 6.0	$ 0.3	$ 5.2