Shareholders' Equity and Stock-Based Compensation - Additional Information (Detail) (USD $)	3 Months Ended		9 Months Ended
	Jun. 25, 2011	Jun. 26, 2010	Jun. 25, 2011 Year Day Store Country	Jun. 26, 2010	Sep. 25, 2010
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Preferred stock, shares authorized	5,000,000		5,000,000
Fair value of vested RSUs as of the vesting date	$ 637,000,000	$ 353,000,000	$ 1,400,000,000	$ 990,000,000
Total intrinsic value of options at the time of exercise	248,000,000	559,000,000	2,100,000,000	1,600,000,000
Weighted-average fair value of stock purchase rights per share	$ 72.63	$ 46.82	$ 67.70	$ 41.98
Income Tax benefit related to stock-based compensation expense	113,000,000	77,000,000	349,000,000	238,000,000
Total unrecognized compensation cost on stock options and RSUs	$ 2,300,000,000		$ 2,300,000,000
Total unrecognized compensation cost on stock options and RSUs, Weighted-average recognition period (in years)			2.8
Shares reserved for future issuance under Employee Benefit Plans (in shares)	53,600,000		53,600,000		62,700,000
Options granted			1,000
Stock option, granted share (whole number)	0	0	1,370	34,000
Weighted-average grant date fair value	$ 0.00	$ 0.00	$ 181.13	$ 108.58
Certain Business Combinations
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options granted		31,000		98,000
Weighted-average grant date fair value		$ 256.63		$ 216.82