Segment Information (Schedule of Reportable Segment Data) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jan. 01, 2016	Jan. 02, 2015	Jan. 01, 2016	Jan. 02, 2015
Segment Reporting Information [Line Items]
Net revenues	$ 909	$ 970	$ 2,727	$ 3,057
Operating income	146	34	329	203
Operating Segments
Segment Reporting Information [Line Items]
Net revenues	909	970	2,727	3,057
Operating income	254	330	812	1,016
Operating Segments | Consumer Security
Segment Reporting Information [Line Items]
Net revenues	414	461	1,264	1,479
Operating income	230	245	707	770
Operating Segments | Enterprise Security
Segment Reporting Information [Line Items]
Net revenues	495	509	1,463	1,578
Operating income	$ 24	$ 85	$ 105	$ 246