Derivative Instruments and Hedging Activities - Non-designated Derivatives (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Oct. 01, 2016	Sep. 26, 2015	Oct. 01, 2016	Sep. 26, 2015
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	$ (1.2)	$ (8.8)	(10.2)	$ (262.8)
Foreign currency forward contracts | Non-designated derivatives | Other expense, net
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain/(Loss) Recognized in Income	(0.2)	(8.9)	(8.7)	(259.4)
Foreign currency forward contracts | Non-designated derivatives | Interest expense, net
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain/(Loss) Recognized in Income	$ (1.0)	$ 0.1	$ (1.5)	$ (3.4)