Shareholders' Equity and Share-based Compensation - Additional Information (Detail) (USD $)	3 Months Ended		9 Months Ended
	Jun. 30, 2012	Jun. 25, 2011	Jun. 30, 2012	Jun. 25, 2011
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	$ 1,500,000,000	$ 637,000,000	$ 3,100,000,000	$ 1,400,000,000
Total intrinsic value of options at the time of exercise	332,000,000	248,000,000	1,500,000,000	2,100,000,000
Shares reserved for future issuance under the Company's stock plans (in shares)	38,200,000		38,200,000
Options assumed			41,000
Weighted-average grant date fair value			$ 400.79
Weighted-average fair value of stock purchase rights per share	$ 114.01	$ 72.63	$ 102.41	$ 67.70
Income tax benefit related to share-based compensation expense	131,000,000	113,000,000	432,000,000	349,000,000
Total unrecognized compensation cost on stock options and RSUs expected to vest	4,300,000,000		4,300,000,000
Total unrecognized compensation cost on stock options and RSUs expected to vest, weighted-average recognition period (in years)			3 years 146 days
Quarterly dividends per share declared, beginning in the fourth quarter of 2012			$ 2.65
Maximum amount authorized for the repurchase of common stock			$ 10,000,000,000
Number of years expected to execute the repurchase program			3 years