Income Statement Impacts Related to Derivatives Not Designated as Hedging Instruments (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jul. 02, 2016	Jul. 04, 2015	Jul. 02, 2016	Jul. 04, 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	$ (31.0)	$ 50.1	$ (37.0)	$ 20.7
Fair Value Hedging [Member]
Derivative Instruments and Hedging Activities Disclosure [Line Items]
Interest Expense, Debt	8.1	11.8	19.9	23.7
Derivative, Loss on Derivative	$ 2.3	$ 3.6	$ 5.3	$ 7.4