Details of Foreign Exchange Contracts Pre-Tax Amounts (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jul. 04, 2015	Jun. 28, 2014	Jul. 04, 2015	Jun. 28, 2014
Derivative Instruments and Hedging Activities Disclosure [Line Items]
Payments for Hedge, Investing Activities			$ 63.9
Proceeds from Hedge, Investing Activities				$ 35.8
Fair Value Hedging [Member]
Derivative Instruments and Hedging Activities Disclosure [Line Items]
Derivative, Loss on Derivative	$ 3.6	$ 4.8	7.4	10.2
Interest Expense, Debt	11.8	14.2	23.7	27.4
Net Investment Hedging | Foreign Exchange Contracts | Other Income And Expense [Member]
Derivative Instruments and Hedging Activities Disclosure [Line Items]
Amount Recorded in OCI Gain (Loss)	(39.4)	(25.2)	(2.5)	(35.9)
Gain (Loss) Recognized in Income (Ineffective Portion)	$ 0.0	$ 0.0	$ 0.0	$ 0.0