Stockholders' Equity And Stock-Based Compensation (Schedule Of Stock-Based Compensation Expense By Plan) (Details) - USD ($) $ in Thousands	12 Months Ended
Sep. 25, 2015	Sep. 26, 2014	Sep. 27, 2013
Stockholders' Equity And Stock-Based Compensation [Line Items]
Allocated Share-based Compensation Expense	$ 67,069	$ 65,680	$ 64,328
Share based compensation expense	67,069	65,680	64,328
Benefit from income taxes	(19,606)	(19,315)	(19,316)
Employee Service Share-based Compensation, Tax Benefit Realized from Exercise of Stock Options	328	538	417
Allocated Share-based Compensation Expense, Net of Tax	47,463	46,365	45,012
Stock Option [Member]
Stockholders' Equity And Stock-Based Compensation [Line Items]
Share based compensation expense	22,972	19,680	21,334
Restricted Stock Units [Member]
Stockholders' Equity And Stock-Based Compensation [Line Items]
Share based compensation expense	40,332	42,221	39,644
Employee Stock Purchase Plan [Member]
Stockholders' Equity And Stock-Based Compensation [Line Items]
Share based compensation expense	3,765	3,779	3,350
Restructuring Charges [Member]
Stockholders' Equity And Stock-Based Compensation [Line Items]
Allocated Share-based Compensation Expense	$ 0	$ 0	$ 1,867

Stockholders' Equity And Stock-Based Compensation [Line Items]

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

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section S99

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-Name Staff Accounting Bulletin (SAB)

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

+ References

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

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-Publisher FASB

-Name Accounting Standards Codification

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Disclosure of the aggregate tax benefit realized from the exercise of stock options and the conversion of similar instruments during the annual period.

+ References

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-Publisher FASB

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- Definition

The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

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-Section 45

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