Segment Information (Schedule Of Product Revenue Information) (Details)	12 Months Ended
	Mar. 29, 2013		Mar. 30, 2012		Apr. 01, 2011
Revenue from External Customer [Line Items]
Percent of net revenue	100.00%	[1]	100.00%	[1]	100.00%	[1]
Core Consumer Security [Member]
Revenue from External Customer [Line Items]
Percent of net revenue	27.00%		28.00%		28.00%
Backup [Member]
Revenue from External Customer [Line Items]
Percent of net revenue	21.00%		20.00%		21.00%
Storage And Availability Management [Member]
Revenue from External Customer [Line Items]
Percent of net revenue	8.00%		9.00%		10.00%
Endpoint Security And Management [Member]
Revenue from External Customer [Line Items]
Percent of net revenue	8.00%		9.00%		10.00%
Others [Member]
Revenue from External Customer [Line Items]
Percent of net revenue	36.00%	[1]	34.00%	[1]	31.00%	[1]
Ingram Micro [Member]
Revenue from External Customer [Line Items]
Percent of net revenue					10.00%

[1] No other product category was material to the respective totals.