Goodwill and Intangible Assets (Tables)

9 Months Ended

Dec. 30, 2016

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Changes in the Carrying Amount of Goodwill by Segment

The changes in the carrying amount of goodwill by segment are as follows:

	Consumer Security			Enterprise Security			Total
	(In millions)
Net balance as of April 1, 2016	$	1,231		$	1,917		$	3,148
Acquisition of Blue Coat	—			4,086			4,086
Translation adjustments	(1		)	(6		)	(7		)
Net balance as of December 30, 2016	$	1,230		$	5,997		$	7,227

Schedule of Intangible Assets, Net, Finite-Lived

	December 30, 2016							April 1, 2016
	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
	(In millions)
Customer relationships	$	1,111	$	(268	)	$	843	$	406	$	(320	)	$	86
Developed technology	883		(175		)	708		144		(84		)	60
Finite-lived trade names	19		(5		)	14		2		(2		)	—
Patents	21		(19		)	2		21		(18		)	3
Total finite-lived intangible assets	2,034		(467		)	1,567		573		(424		)	149
Indefinite-lived trade names	281		—			281		294		—			294
In-process research and development	19		—			19		—		—			—
Total intangible assets	$	2,334	$	(467	)	$	1,867	$	867	$	(424	)	$	443

Schedule of Intangible Assets, Net, Indefinite-Lived

	December 30, 2016							April 1, 2016
	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
	(In millions)
Customer relationships	$	1,111	$	(268	)	$	843	$	406	$	(320	)	$	86
Developed technology	883		(175		)	708		144		(84		)	60
Finite-lived trade names	19		(5		)	14		2		(2		)	—
Patents	21		(19		)	2		21		(18		)	3
Total finite-lived intangible assets	2,034		(467		)	1,567		573		(424		)	149
Indefinite-lived trade names	281		—			281		294		—			294
In-process research and development	19		—			19		—		—			—
Total intangible assets	$	2,334	$	(467	)	$	1,867	$	867	$	(424	)	$	443

Schedule of Future Intangible Asset Amortization Expense

As of December 30, 2016, future amortization expense related to intangible assets that have finite lives is as follows by fiscal year:

	December 30, 2016
	(In millions)
Remainder of 2017	$	90
2018	352
2019	325
2020	305
2021	193
Thereafter	302
Total future amortization expense	$	1,567