Stockholders' Equity and Stock-Based Compensation (Narrative) (Details) (USD $)	3 Months Ended				6 Months Ended					3 Months Ended				6 Months Ended				3 Months Ended				6 Months Ended				0 Months Ended		3 Months Ended	6 Months Ended	0 Months Ended	6 Months Ended	0 Months Ended	1 Months Ended	12 Months Ended	0 Months Ended	1 Months Ended		3 Months Ended		6 Months Ended
	Mar. 29, 2013		Mar. 30, 2012		Mar. 29, 2013		Mar. 30, 2012		Mar. 29, 2013 Stock Options [Member] Y	Mar. 29, 2013 Restricted Stock Units [Member]		Mar. 30, 2012 Restricted Stock Units [Member]		Mar. 29, 2013 Restricted Stock Units [Member] Y		Mar. 30, 2012 Restricted Stock Units [Member]		Mar. 29, 2013 Employee Stock Purchase Plan [Member]		Mar. 30, 2012 Employee Stock Purchase Plan [Member]		Mar. 29, 2013 Employee Stock Purchase Plan [Member]		Mar. 30, 2012 Employee Stock Purchase Plan [Member]		Dec. 21, 2012 Equity Award Modification [Member]	Dec. 11, 2012 Equity Award Modification [Member]	Mar. 29, 2013 Equity Award Modification [Member]	Mar. 29, 2013 Equity Award Modification [Member]	Dec. 21, 2012 Equity Award Modification Restricted Stock Units [Member]	Mar. 29, 2013 Equity Award Modification Restricted Stock Units [Member]	Mar. 29, 2013 Class A Common Stock [Member]	Nov. 30, 2009 Class A Common Stock [Member]	Sep. 30, 2011 Class A Common Stock [Member]	Jul. 26, 2011 Class A Common Stock [Member] Additional Stock Approved [Member]	Feb. 29, 2012 Class A Common Stock [Member] Additional Stock Approved [Member]	Jul. 31, 2010 Class A Common Stock [Member] Additional Stock Approved [Member]	Mar. 29, 2013 Maximum [Member]	Mar. 30, 2012 Maximum [Member]	Mar. 29, 2013 Maximum [Member]	Mar. 30, 2012 Maximum [Member]
Period End Stock Price	$ 33.56				$ 33.56
Compensation expense capitalized			$ 200,000				$ 400,000
Stock repurchase program, authorized amount																																	250,000,000	900,000,000	250,000,000	100,000,000	300,000,000
Stock repurchase program, remaining authorized repurchase amount																																132,900,000
Recognized tax benefit from the exercise of ISO and ESPP																																						100,000	100,000	100,000	100,000
Unrecorded stock-based compensation expense									46,500,000	88,200,000				88,200,000
Employee stock options expected to be recognized over a weighted-average period, years									3.0					2.8
Common stock dividend declared																											$ 4.00
Common stock, shares outstanding																										102,051,386
Dividends, Common Stock																										408,200,000
Total incremental charge to compensation																												7,900,000
Incremental charge recognized in period																													3,900,000
Stock-based compensation	14,945,000	[1]	12,063,000	[1]	32,649,000	[1]	23,502,000	[1]		10,519,000	[1]	5,880,000	[1]	18,859,000	[1]	11,144,000	[1]	736,000	[1]	144,000	[1]	1,791,000	[1]	225,000	[1]
Total incremental charge to compensation for dividend equivalent for restricted stock units																														11,900,000
Incremental charge for restricted stock units recognized in period																															$ 2,300,000

[1] We also recognize a tax benefit from certain exercises of incentive stock options and shares issued under our ESPP which are not included in the table above. This benefit was not greater than $0.1 million in both the second quarter of fiscal 2013 and fiscal 2012, and $0.1 million in both the fiscal year-to-date period ended March 29, 2013 and March 30, 2012.