Goodwill and Intangible Assets (Schedule of Changes in the Carrying Amount of Goodwill) (Details) $ in Millions	3 Months Ended
	Jul. 01, 2016 USD ($)
Goodwill [Roll Forward]
Net balance, beginning	$ 3,148
Translation adjustments	(2)
Net balance, ending	3,146
Consumer Security
Goodwill [Roll Forward]
Net balance, beginning	1,231
Translation adjustments	0
Net balance, ending	1,231
Enterprise Security
Goodwill [Roll Forward]
Net balance, beginning	1,917
Translation adjustments	(2)
Net balance, ending	$ 1,915