Business Combination (PGP Corporation Acquisitions, Schedule Of Purchase Price Allocation) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Mar. 29, 2013	Mar. 30, 2012	Apr. 01, 2011
Business Acquisition [Line Items]
Cash payment for acquisition, net of cash acquired	$ 28	$ 508	$ 1,537
Weighted average estimated useful life (in years)	2 years	3 years
PGP Corporation [Member]
Business Acquisition [Line Items]
Business acquisition date			Jun. 04, 2010
Cash payment for acquisition, net of cash acquired			299
Cash acquired from acquisition			7
Acquisition related transaction costs			1
Net tangible assets			7	[1]
Intangible assets			74	[2]
Goodwill			225	[3]
Total purchase price			306
Deferred Revenue [Member] | PGP Corporation [Member]
Business Acquisition [Line Items]
Net tangible assets			55
Deferred Revenue, Adjusted To Fair Value [Member] | PGP Corporation [Member]
Business Acquisition [Line Items]
Net tangible assets			9
Customer Relationships [Member]
Business Acquisition [Line Items]
Weighted average estimated useful life (in years)	2 years	3 years
Customer Relationships [Member] | PGP Corporation [Member]
Business Acquisition [Line Items]
Intangible assets			29
Weighted average estimated useful life (in years)			8 years
Developed Technology [Member]
Business Acquisition [Line Items]
Weighted average estimated useful life (in years)	4 years	4 years
Developed Technology [Member] | PGP Corporation [Member]
Business Acquisition [Line Items]
Intangible assets			39
Weighted average estimated useful life (in years)			5 years
Finite-Lived Tradenames [Member]
Business Acquisition [Line Items]
Weighted average estimated useful life (in years)	2 years	3 years
Finite-Lived Tradenames [Member] | PGP Corporation [Member]
Business Acquisition [Line Items]
Intangible assets			3
Weighted average estimated useful life (in years)			2 years
Minimum [Member] | Customer Relationships [Member] | PGP Corporation [Member]
Business Acquisition [Line Items]
Useful lives of intangible assets			2 years
Maximum [Member] | Customer Relationships [Member] | PGP Corporation [Member]
Business Acquisition [Line Items]
Useful lives of intangible assets			8 years
Indefinite-Lived-In Process Research And Development [Member] | PGP Corporation [Member]
Business Acquisition [Line Items]
Intangible assets			$ 3

[1] Net tangible assets included deferred revenue, which was adjusted down from $55 million to $9 million, representing our estimate of the fair value of the contractual obligation assumed for support services.

[2] Intangible assets included customer relationships of $29 million, developed technology of $39 million, and definite-lived trade names of $3 million, which are amortized over their estimated useful lives of two to eight years. The weighted-average estimated useful lives were 8.0 years for customer relationships, 5.0 years for developed technology, and 2.0 years for definite-lived trade names. Intangible assets also included indefinite-lived in-process research and development (“IPR&D”) of $3 million.

[3] Goodwill is not tax deductible. The goodwill amount resulted primarily from our expectation of synergies from the integration of PGP product offerings with our existing product offerings.