Gains (Losses) Related to Foreign Currency Forward Exchange Contracts that are Not Designated as Hedging Instruments (Detail) (Selling, general and administrative expenses, USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Mar. 28, 2014	Mar. 29, 2013	Mar. 28, 2014	Mar. 29, 2013
Selling, general and administrative expenses
Derivative [Line Items]
Amount of Gain (Loss) Recognized in Net Earnings on Derivative not designated as hedging instrument	$ (3.2)	$ 9.8	$ 1.5	$ 12.3