Goodwill and Intangible Assets (Schedule of Changes in the Carrying Amount of Goodwill) (Details) $ in Millions	6 Months Ended
	Oct. 02, 2015 USD ($)
Goodwill [Roll Forward]
Net balance as of April 3, 2015	$ 5,847	[1]
Translation adjustments	0
Net balance as of October 2, 2015	5,847
Consumer Security
Goodwill [Roll Forward]
Net balance as of April 3, 2015	1,230
Translation adjustments	0
Net balance as of October 2, 2015	1,230
Enterprise Security
Goodwill [Roll Forward]
Net balance as of April 3, 2015	1,916
Translation adjustments	2
Net balance as of October 2, 2015	1,918
Information Management
Goodwill [Roll Forward]
Net balance as of April 3, 2015	2,701
Translation adjustments	(2)
Net balance as of October 2, 2015	$ 2,699

[1] Derived from audited financial statements.