Segment and Geographic Information (Schedule Of Product Revenue Information) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Apr. 03, 2015		Mar. 28, 2014		Mar. 29, 2013
Revenue from External Customer [Line Items]
Net revenue	$ 6,508		$ 6,676		$ 6,906
Core consumer security
Revenue from External Customer [Line Items]
Net revenue	1,887		2,063		2,109
Backup
Revenue from External Customer [Line Items]
Net revenue	1,536		1,423		1,445
Information availability
Revenue from External Customer [Line Items]
Net revenue	585		652		733
Endpoint security and management
Revenue from External Customer [Line Items]
Net revenue	604		638		701
Others
Revenue from External Customer [Line Items]
Net revenue	$ 1,896	[1]	$ 1,900	[1]	$ 1,918	[1]

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