Stock Option Activity and Related Information (Detail) (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Sep. 24, 2011 Year Contract Country Store Vendor	Sep. 25, 2010	Sep. 26, 2009
Number of Options
Beginning Balance	21,725	34,375	44,146
Options granted	1	34	234
Options assumed		98
Options cancelled	(163)	(430)	(1,241)
Options exercised	(9,697)	(12,352)	(8,764)
Ending Balance	11,866	21,725	34,375
Exercisable at end of the period	11,089
Expected to vest after end of the period	777
Weighted-Average Exercise Price
Beginning Balance	$ 90.46	$ 81.17	$ 74.39
Options granted	$ 342.62	$ 202.00	$ 106.84
Options assumed		$ 11.99
Options cancelled	$ 128.42	$ 136.27	$ 122.98
Options exercised	$ 67.63	$ 62.69	$ 41.78
Ending Balance	$ 108.64	$ 90.46	$ 81.17
Exercisable at end of the period	$ 104.97
Expected to vest after end of the period	$ 161.23
Weighted - Average Remaining Contractual Term (in years)
Ending Balance (in years)	2.38
Exercisable at end of the period (in years)	2.31
Expected to vest after end of the period (in years)	3.38
Aggregate Intrinsic Value
Ending Balance	$ 3,508,243
Exercisable at end of the period	3,319,374
Expected to vest after end of the period	$ 188,869