Stock-Based Compensation (Schedule Of Stock-Based Compensation Expense Recognized In Our Condensed Consolidated Statements Of Income) (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Oct. 03, 2014	Sep. 27, 2013	Oct. 03, 2014	Sep. 27, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	$ 46	$ 38	$ 89	$ 77
Tax benefit associated with stock-based compensation expense	(14)	(10)	(26)	(21)
Net stock-based compensation expense	32	28	63	56
Net stock-based compensation expense per share — basic	$ 0.05	$ 0.04	$ 0.09	$ 0.08
Net stock-based compensation expense per share — diluted	$ 0.05	$ 0.04	$ 0.09	$ 0.08
Cost of revenue
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	6	4	12	8
Sales and marketing
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	18	15	35	29
Research and development
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	15	12	28	25
General and administrative
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	$ 7	$ 7	$ 14	$ 15