Description of Business and Significant Accounting Policies (Details) $ in Millions	Aug. 01, 2016 USD ($)
Stock options \| Blue Coat, Inc.
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Assumed awards, fair value	$ 265

Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Share-based Compensation Arrangement, Shares Assumed, Fair Value

No definition available.

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Balance Type:	debit
Period Type:	instant