Common Stock and Stock Plans (Details 3) (USD $)	12 Months Ended			185 Months Ended
	Mar. 30, 2012	Apr. 01, 2011	Apr. 02, 2010	Mar. 30, 2012
Summary of employee stock option activity
Stock options outstanding, shares beginning balance	3,839,468	4,718,176	5,449,049
Options outstanding, Weighted Average Exercise Price per Share, Beginning balance	$ 22.66	$ 20.90	$ 20.12
Options granted, Shares	368,000	266,250	383,900	9,320,033
Options granted, Weighted Average Exercise Price per Share	$ 44.73	$ 41.26	$ 29.05	$ 44.73
Options canceled, shares	(10,200)	(20,543)	(94,874)
Options canceled, Weighted Average Exercise Price per Share	$ 32.11	$ 27.40	$ 29.06
Exercise of stock options, shares	(795,634)	(1,124,415)	(1,019,899)
Options exercised, Weighted Average Exercise Price per Share	$ 18.45	$ 19.60	$ 19.06	$ 18.45
Stock options outstanding, shares ending balance	3,401,634	3,839,468	4,718,176	3,401,634
Options outstanding, Weighted Average Exercise Price per Share, Ending balance	$ 26.00	$ 22.66	$ 20.90	$ 26.00