Stock-Based Compensation Plans (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Mar. 28, 2015	Mar. 29, 2014	Mar. 30, 2013
Stock Based compensation expense
Income tax effect	$ (55,000)	$ (67,000)	$ (32,600)
Employee Stock Purchase Plan [Member]
Stock Based compensation expense
Stock-based compensation effect on income before taxes	99,859	94,314	77,862
Income tax effect	(29,268)	(27,327)	(22,137)
Net stock-based compensation effect on net income	70,591	66,987	55,725
Employee Stock Purchase Plan [Member] | Cost of Revenues [Member]
Stock Based compensation expense
Stock-based compensation effect on income before taxes	8,101	7,602	6,356
Employee Stock Purchase Plan [Member] | Research and Development [Member]
Stock Based compensation expense
Stock-based compensation effect on income before taxes	50,185	46,197	37,937
Employee Stock Purchase Plan [Member] | Selling, General and Administrative Expenses [Member]
Stock Based compensation expense
Stock-based compensation effect on income before taxes	40,994	40,515	33,569
Employee Stock Purchase Plan [Member] | Restructuring Charges [Member]
Stock Based compensation expense
Stock-based compensation effect on income before taxes	$ 579	$ 0	$ 0