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. 29, 2013	Mar. 30, 2012	Mar. 29, 2013	Mar. 30, 2012
Selling, general and administrative expenses
Derivative [Line Items]
Amount of Gain Recognized in Net Earnings on Derivative not designated as hedging instrument	$ 9.8	$ 0.4	$ 12.3	$ 2.1