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	3 Months Ended
	Jul. 01, 2011	Jul. 02, 2010
Total stock-based compensation expense	$ 39	$ 35
Tax benefit associated with stock-based compensation expense	(11)	(10)
Net stock-based compensation expense	28	25
Net stock-based compensation expense per share - basic	$ 0.04	$ 0.03
Net stock-based compensation expense per share - diluted	$ 0.04	$ 0.03
Cost Of Revenue - Content, Subscription, And Maintenance [Member]
Total stock-based compensation expense	4	3
Cost Of Revenue - License [Member]
Total stock-based compensation expense	1	1
Sales And Marketing [Member]
Total stock-based compensation expense	15	14
Research And Development [Member]
Total stock-based compensation expense	11	10
General And Administrative [Member]
Total stock-based compensation expense	$ 8	$ 7