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Amount of damages awarded to the plaintiff in the legal matter.

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Commitments and Contingencies (Details) $ in Millions			3 Months Ended		69 Months Ended
Commitments and Contingencies (Details) $ in Millions	Aug. 04, 2015 USD ($) patent	Aug. 28, 2013 patent	Jun. 30, 2017 USD ($)	Jul. 01, 2016 USD ($)	Sep. 30, 2012 USD ($)	Aug. 31, 2015 USD ($)	Jan. 31, 2014 USD ($)
Loss Contingencies [Line Items]
Net revenues			$ 1,175	$ 884
GSA Schedule Contract
Loss Contingencies [Line Items]
Net revenues					$ 222
GSA initial analysis of damage exposure							$ 145
GSA Schedule Contract \| Minimum
Loss Contingencies [Line Items]
Estimated loss			25
Class Action Lawsuit vs. Symantec, Extended Download Services and Norton Download Insurance
Loss Contingencies [Line Items]
Accrual for settlement						$ 30
Finjan, Inc vs. Blue Coat Systems, Inc. \| Pending Litigation
Loss Contingencies [Line Items]
Number of patents allegedly infringed \| patent		6
Finjan, Inc vs. Blue Coat Systems, Inc. \| Judicial Ruling
Loss Contingencies [Line Items]
Estimated loss			$ 40
Number of patents found infringed \| patent	5
Damages awarded	$ 40