The Company and Its Significant Accounting Policies Accumulated Other Comprehensive Income (Details) (USD $) In Millions	Sep. 25, 2011	Sep. 26, 2010
Noncredit other-than-temporary impairment losses and subsequent changes in fair value related to certain marketable debt securities, net of income taxes	$ 27	$ 62
Net unrealized gains on marketable securities, net of income taxes	427	723
Net unrealized losses on derivative instruments, net of income taxes	(15)	(8)
Foreign currency translation	(86)	(80)
Total accumulated other comprehensive income	$ 353	$ 697

Accumulated adjustment, net of tax, that results from the process of translating subsidiary financial statements and foreign equity investments into the reporting currency from the functional currency of the reporting entity, net of reclassification of realized foreign currency translation gains or losses.

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- Definition

Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge.

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