Summary of Quarterly Financial Information (Detail) (USD $) In Millions, except Per Share data	3 Months Ended	12 Months Ended
Sep. 24, 2011	Jun. 25, 2011	Mar. 26, 2011	Dec. 25, 2010	Sep. 25, 2010	Jun. 26, 2010	Mar. 27, 2010	Dec. 26, 2009	Sep. 24, 2011	Sep. 25, 2010	Sep. 26, 2009
Quarterly Financial Information [Line Items]
Net sales	$ 28,270	$ 28,571	$ 24,667	$ 26,741	$ 20,343	$ 15,700	$ 13,499	$ 15,683	$ 108,249	$ 65,225	$ 42,905
Gross margin	11,380	11,922	10,218	10,298	7,512	6,136	5,625	6,411	43,818	25,684	17,222
Net income	$ 6,623	$ 7,308	$ 5,987	$ 6,004	$ 4,308	$ 3,253	$ 3,074	$ 3,378	$ 25,922	$ 14,013	$ 8,235
Earnings per common share:
Basic	$ 7.13	$ 7.89	$ 6.49	$ 6.53	$ 4.71	$ 3.57	$ 3.39	$ 3.74	$ 28.05	$ 15.41	$ 9.22
Diluted	$ 7.05	$ 7.79	$ 6.40	$ 6.43	$ 4.64	$ 3.51	$ 3.33	$ 3.67	$ 27.68	$ 15.15	$ 9.08

The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

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+ Details

- Definition

The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

+ References+ Details

- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

+ References

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-Glossary Other Comprehensive Income

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-Glossary Net Income

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+ Details