Stock-Based Compensation Plans (Details Textuals) (USD $)	3 Months Ended		6 Months Ended		12 Months Ended	3 Months Ended		6 Months Ended			3 Months Ended		6 Months Ended				3 Months Ended		6 Months Ended
	Oct. 01, 2011	Oct. 02, 2010	Oct. 01, 2011	Oct. 02, 2010	Apr. 02, 2011	Oct. 01, 2011 Employee Stock Option [Member]	Oct. 02, 2010 Employee Stock Option [Member]	Oct. 01, 2011 Employee Stock Option [Member]	Oct. 02, 2010 Employee Stock Option [Member]	Aug. 10, 2011 Employee Stock [Member]	Oct. 01, 2011 Employee Stock Purchase Plan [Member]	Oct. 02, 2010 Employee Stock Purchase Plan [Member]	Oct. 01, 2011 Employee Stock Purchase Plan [Member]	Oct. 02, 2010 Employee Stock Purchase Plan [Member]	Aug. 10, 2011 Employee Stock Purchase Plan [Member]	Oct. 01, 2011 Equity Plan 2007 [Member]	Oct. 01, 2011 Restricted Stock Units [Member]	Oct. 02, 2010 Restricted Stock Units [Member]	Oct. 01, 2011 Restricted Stock Units [Member]	Oct. 02, 2010 Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares available for grant											8,900,000		8,900,000			15,700,000
Weighted average fair value per share of stock options granted						$ 8.03	$ 6.72	$ 7.87	$ 6.72
Weighted average fair value per share of RSUs and stock purchase rights granted			$ 34.13		$ 25.14						$ 9.37	$ 7.82					$ 34.33	$ 23.90	$ 34.13	$ 23.91
Authorized number of shares reserved for issuance										4,500,000					2,000,000
Total price of shares purchased under ESPP													$ 13,300,000	$ 13,900,000
Shares issued during the period													501,000	958,000
Stock- Based Compensation Plans (Textuals) [Abstract]
Tax benefit realized for the tax deduction from option exercises and other awards			6,531,000	647,000
Total intrinsic value of options exercised	$ 3,300,000	$ 4,800,000	$ 18,300,000	$ 6,400,000