Commitments and Contingencies (Narrative) (Details) - USD ($) $ in Millions		3 Months Ended		69 Months Ended
	Feb. 06, 2015	Jul. 03, 2015	Jul. 04, 2014	Sep. 30, 2012	Jan. 31, 2014
Loss Contingencies [Line Items]
Total net revenue		$ 1,499	$ 1,735
Intellectual Ventures (IV) vs. Symantec | Judicial Ruling
Loss Contingencies [Line Items]
Damages awarded	$ 8
Class Action Lawsuit vs. Symantec, EDS and NDI
Loss Contingencies [Line Items]
Accrual for settlement		30
GSA Schedule Contract
Loss Contingencies [Line Items]
Total net revenue				$ 222
GSA analysis of damage exposure					$ 145
Current estimate of the low end of the range of estimated loss		$ 25