Restructuring Activities - Schedule of Approved Restructuring Spending (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Total Restructuring Program Range
Other expenses associated with the Program	$ 4.8	$ 3.8	$ 10.1	$ 7.8
Total charges	6.9	13.9	12.2	18.5
Capital expenditures	2.1	$ 0.0	3.3	$ 0.2
Program
Total Restructuring Program Range
Other expenses associated with the Program			10.1
Less Cumulative Spend to Date
Costs of reduction in headcount as a result of reorganization	(62.0)		(62.0)
Other expenses associated with the Program	(93.0)		(93.0)
Total expense	(155.0)		(155.0)
Capital expenditures	(4.0)		(4.0)
Total estimated cash cost	(159.0)		(159.0)
Program | Minimum
Total Restructuring Program Range
Costs of reduction in headcount as a result of reorganization			65.0
Other expenses associated with the Program			120.0
Total charges			185.0
Capital expenditures			5.0
Total estimated net cash cost	190.0		190.0
Restructuring and Related Cost, Expected Cost [Abstract]
Costs of reduction in headcount as a result of reorganization	3.0		3.0
Other expenses associated with the Program	27.0		27.0
Total expense	30.0		30.0
Capital expenditures	1.0		1.0
Total estimated cash cost	31.0		31.0
Program | Maximum
Total Restructuring Program Range
Costs of reduction in headcount as a result of reorganization			75.0
Other expenses associated with the Program			130.0
Total charges			205.0
Capital expenditures			15.0
Total estimated net cash cost	220.0		220.0
Restructuring and Related Cost, Expected Cost [Abstract]
Costs of reduction in headcount as a result of reorganization	13.0		13.0
Other expenses associated with the Program	37.0		37.0
Total expense	50.0		50.0
Capital expenditures	11.0		11.0
Total estimated cash cost	$ 61.0		$ 61.0