Segment Information (Schedule Of Reportable Segment Data) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Mar. 29, 2013		Mar. 30, 2012		Apr. 01, 2011
Segment Reporting Information [Line Items]
Net revenue	$ 6,906	[1]	$ 6,730	[1]	$ 6,190	[1]
Percentage of total net revenue	100.00%		100.00%		100.00%
Operating income (loss)	1,123		1,079		880
Depreciation, amortization of intangibles, and Amortization of debt issuance and discounts expense	698		712		743
Consumer [Member]
Segment Reporting Information [Line Items]
Net revenue	2,109		2,104		1,953
Percentage of total net revenue	30.00%		31.00%		32.00%
Operating income (loss)	1,006		1,012		899
Operating margin	48.00%		48.00%		46.00%
Depreciation, amortization of intangibles, and Amortization of debt issuance and discounts expense	37		40		39
Security And Compliance [Member]
Segment Reporting Information [Line Items]
Net revenue	2,053		1,961		1,636
Percentage of total net revenue	30.00%		29.00%		26.00%
Operating income (loss)	608		445		262
Operating margin	30.00%		23.00%		16.00%
Depreciation, amortization of intangibles, and Amortization of debt issuance and discounts expense	63		56		42
Storage And Server Management [Member]
Segment Reporting Information [Line Items]
Net revenue	2,479		2,412		2,310
Percentage of total net revenue	36.00%		36.00%		37.00%
Operating income (loss)	960		973		1,060
Operating margin	39.00%		40.00%		46.00%
Depreciation, amortization of intangibles, and Amortization of debt issuance and discounts expense	31		30		33
Services [Member]
Segment Reporting Information [Line Items]
Net revenue	265		253		291
Percentage of total net revenue	4.00%		4.00%		5.00%
Operating income (loss)	43		41		7
Operating margin	16.00%		16.00%		2.00%
Depreciation, amortization of intangibles, and Amortization of debt issuance and discounts expense	3		3		4
Other [Member]
Segment Reporting Information [Line Items]
Percentage of total net revenue	0.00%		0.00%		0.00%
Operating income (loss)	(1,494)		(1,392)		(1,348)
Operating margin		[2]		[2]		[2]
Depreciation, amortization of intangibles, and Amortization of debt issuance and discounts expense	$ 564		$ 583		$ 625

[1] No individual country represented more than 10% of the respective totals.

[2] Percentage not meaningful.