Stock-Based Compensation (Schedule of Stock-Based Compensation Expense Recognized in our Condensed Consolidated Statements of Income) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Sep. 28, 2018	Sep. 29, 2017	Sep. 28, 2018	Sep. 29, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	$ 97	$ 176	$ 210	$ 323
Income tax benefit for stock-based compensation expense	(21)	(58)	(47)	(109)
Cost of revenues
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	4	9	9	15
Sales and marketing
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	31	50	62	93
Research and development
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	39	53	78	94
General and administrative
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	$ 23	$ 64	$ 61	$ 121