Restructuring Activities - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 6.9	$ 6.6	$ 43.6	$ 22.3
Other related costs	12.8	$ 0.7	$ 50.8	$ 2.5
Restructuring Program term (in years)			3 years
Restructuring accrual expected to pay	41.1		$ 41.1		$ 33.5
Program
Restructuring Cost and Reserve [Line Items]
Restructuring charges	6.9		43.6
Other related costs	12.8		50.8
Restructuring accrual expected to pay	41.1		41.1
Restructuring accrual remaining	3.6		3.6
Minimum | Program
Restructuring Cost and Reserve [Line Items]
Other related costs			230.0
Approved cumulative restructuring spend	840.0		840.0
Maximum | Program
Restructuring Cost and Reserve [Line Items]
Other related costs			245.0
Approved cumulative restructuring spend	$ 885.0		$ 885.0