The Company and Its Significant Accounting Policies Share-Based Compensation Expense (Details) (USD $) In Millions	12 Months Ended
Sep. 25, 2011	Sep. 26, 2010	Sep. 27, 2009
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Cost of equipment and services revenues	$ 67	$ 41	$ 40
Research and development	397	293	272
Selling, general and administrative	349	263	252
Continuing operations	813	597	564
Related income tax benefit	(194)	(166)	(121)
Continuing operations, net of income taxes	619	431	443
Discontinued operations	8	17	20
Related income tax benefit	(3)	(6)	(8)
Discontinued operations, net of income taxes	5	11	12
Share-based compensation expense, net of income taxes	$ 624	$ 442	$ 455

The expense recognized in income from continuing operations, before income taxes, during the period arising from share-based compensation arrangements (for example, shares of stock, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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- Definition

The expense recognized in income (loss) from discontinued operations, before income taxes, during the period arising from share-based compensation arrangements (for example, shares of stock, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

+ Details

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- Definition

This element represents the cost of equipment and services revenues recognized during the period arising from share-based compensation arrangements (for example, shares of stock, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

+ Details

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- Definition

The recognized tax benefit related to compensation cost for share-based payment arrangements recognized in income (loss) from discontinued operations during the period.

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- Definition

This element represents the research and development expenses recognized during the period arising from share-based compensation arrangements (for example, shares of stock, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

+ Details

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- Definition

This element represents the selling, general and administrative expenses recognized during the period arising from share-based compensation arrangements (for example, shares of stock, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

+ Details

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- Definition

Represents the expense recognized during the period, net of tax, arising from share-based compensation arrangements (for example, shares of stock, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees

+ Details

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- Definition

The expense recognized in income from continuing operations, net of income taxes, during the period arising from share-based compensation arrangements (for example, shares of stock, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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- Definition

The expense recognized in income (loss) from discontinued operations, net of income taxes, during the period arising from share-based compensation arrangements (for example, shares of stock, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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- Definition

The total recognized tax benefit related to compensation cost for equity-based payment arrangements recognized in income during the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 123R

-Paragraph A240

-Subparagraph g(1)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (h)(1)(i)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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