Segment Information (Schedule of Reportable Segment Data) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Oct. 02, 2015	Oct. 03, 2014	Oct. 02, 2015	Oct. 03, 2014
Segment Reporting Information [Line Items]
Net revenue	$ 1,498	$ 1,617	$ 2,997	$ 3,352
Operating income	203	348	404	670
Operating Segments
Segment Reporting Information [Line Items]
Net revenue	1,498	1,617	2,997	3,352
Operating income	421	464	831	891
Operating Segments | Consumer Security
Segment Reporting Information [Line Items]
Net revenue	420	485	850	1,018
Operating income	232	257	477	525
Operating Segments | Enterprise Security
Segment Reporting Information [Line Items]
Net revenue	485	511	967	1,063
Operating income	50	85	80	155
Operating Segments | Information Management
Segment Reporting Information [Line Items]
Net revenue	593	621	1,180	1,271
Operating income	$ 139	$ 122	$ 274	$ 211