Financial Instruments - Derivative Instruments Not Designated as Hedges Included in Condensed Consolidated Statements of Earnings (Detail) - Not Designated as Hedging Instrument [Member] - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jul. 01, 2017	Jul. 02, 2016	Jul. 01, 2017	Jul. 02, 2016
Foreign Currency Forwards [Member] | Other Income (Expense) - Net [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) Recognized in Income	$ 6.0	$ (5.0)	$ (3.9)	$ (4.2)
Equity Forwards [Member] | Operating Expenses [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) Recognized in Income	$ (1.1)	$ (0.1)	$ (1.3)	$ (0.7)