Derivative Instruments and Hedging Activities - Non-designated Derivatives (Details) - USD ($) $ in Millions	3 Months Ended
	Apr. 01, 2017	Apr. 02, 2016
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain/(Loss) Recognized in Income		$ (7.0)
Non-designated derivatives:
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain/(Loss) Recognized in Income	$ (9.3)	(6.8)
Foreign currency forward contracts | Other (income) expense, net | Non-designated derivatives:
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain/(Loss) Recognized in Income	(8.9)	(6.9)
Foreign currency forward contracts | Interest expense, net | Non-designated derivatives:
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain/(Loss) Recognized in Income	$ (0.4)	$ 0.1