Derivative Instruments and Hedging Activities - Non-Designated Derivatives (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Apr. 02, 2016	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain/(Loss) Recognized in Income	$ (7.0)		$ (5.9)
Non-designated derivatives
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain/(Loss) Recognized in Income		$ 6.6	7.3	$ (4.6)
Foreign currency forward contracts | Other expense (Income), net | Non-designated derivatives
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain/(Loss) Recognized in Income		7.6	12.6	(2.4)
Foreign currency forward contracts | Interest expense, net | Non-designated derivatives
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain/(Loss) Recognized in Income		$ (1.0)	$ (5.3)	$ (2.2)