Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Percent, after disposal, of ownership interest of a discontinued operation in which an equity method investment is retained.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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Amount of consideration received or receivable for the disposal of assets and liabilities, including discontinued operation.

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Subsequent Events (Details) - USD ($) $ in Millions		1 Months Ended
Subsequent Events (Details) - USD ($) $ in Millions	Aug. 01, 2017	Jul. 31, 2017	Jun. 30, 2017
Fireglass, Ltd.
Subsequent Event [Line Items]
Consideration for the acquisitions			$ 225
Skycure, Ltd. \| Subsequent Event
Subsequent Event [Line Items]
Consideration for the acquisitions		$ 205
Discontinued Operations, Disposed of by Sale \| Website Security and Public Key Infrastructure Businesses \| Subsequent Event
Subsequent Event [Line Items]
Discontinued operation, ownership interest retained	30.00%
Discontinued Operations \| Discontinued Operations, Disposed of by Sale \| Website Security and Public Key Infrastructure Businesses \| Subsequent Event
Subsequent Event [Line Items]
Discontinued operation, consideration expected	$ 950