Computation of Net Basic and Diluted Earnings Per Share (Detail) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Jun. 27, 2014	Jun. 28, 2013	Jun. 27, 2014	Jun. 28, 2013
Earnings Per Share [Line Items]
Net earnings	$ 107,090	$ 112,831	$ 297,838	$ 320,902
Weighted average shares outstanding - basic	103,644	108,158	104,585	108,741
Dilutive effect of potential common shares	1,225	1,602	1,325	1,755
Weighted average shares outstanding - diluted	104,869	109,760	105,910	110,496
Net earnings per share - basic	$ 1.03	$ 1.04	$ 2.85	$ 2.95
Net earnings per share - diluted	$ 1.02	$ 1.03	$ 2.81	$ 2.90
Anti-dilutive employee shared based awards, excluded	657	737	720	739