Financial Instruments - Derivative Instruments Designated as Fair Value Hedges Included in Condensed Consolidated Statements of Earnings (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jul. 04, 2015	Jun. 28, 2014	Jul. 04, 2015	Jun. 28, 2014
Interest Rate Swaps [Member] | Interest Expense [Member] | Fair Value Hedging [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Effective Portion of Gain Recognized in Income	$ 1.0	$ 1.0	$ 2.0	$ 2.0