Income Statement Impacts Related to Derivatives Not Designated as Hedging Instruments (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Oct. 01, 2016	Oct. 03, 2015	Oct. 01, 2016	Oct. 03, 2015
Not Designated as Hedging Instrument | Foreign Exchange Contracts | Other Income And Expense [Member]
Derivative Instruments and Hedging Activities Disclosure [Line Items]
Amount of Gain (Loss) Recorded in Income on Derivative	$ 12.5	$ (33.4)	$ (24.5)	$ (12.7)
Fair Value Hedging [Member]
Derivative Instruments and Hedging Activities Disclosure [Line Items]
Interest Expense, Debt		11.7	19.9	35.4
Derivative, Loss on Derivative	$ 0.8	$ 3.5	$ 6.1	$ 10.9