Acquisitions Fiscal 2014 Purchase Price Allocation (Details) - USD ($) $ in Millions	Apr. 01, 2016	Apr. 03, 2015	[1]	Mar. 28, 2014	Nov. 15, 2013
Business Acquisition [Line Items]
Goodwill	$ 1,277	$ 838		$ 879
ServiceMesh, Inc
Business Acquisition [Line Items]
Accounts receivable and other current assets					$ 3
Deferred tax assets					31
Property and equipment and other non-current assets					2
Deferred revenue and other current liabilities					(4)
Deferred tax liabilities					(38)
Total identifiable net assets acquired					98
Goodwill					184
Total estimated consideration					282
Developed Technology Rights | ServiceMesh, Inc
Business Acquisition [Line Items]
Finite-lived intangible asset acquired					94
Customer Relationships and Trade Names | ServiceMesh, Inc
Business Acquisition [Line Items]
Finite-lived intangible asset acquired					$ 10

[1] Certain prior year balances were adjusted to give effect to discontinued operations as described in Note 4, for certain errors in previously issued financial statements related to income taxes as described in Note 1, and for the retrospective application of ASU 2015-17 and ASU 2016-09 as described in Note 1.