Acquisitions (Schedule of Preliminary Fair Values of the Assets Acquired and Liabilities Assumed) (Details) - USD ($) $ in Millions	Mar. 31, 2017	Feb. 09, 2017	Aug. 01, 2016	Apr. 01, 2016	Apr. 03, 2015
Assets:
Goodwill	$ 8,627			$ 3,148	$ 3,146
Blue Coat, Inc.
Assets:
Accounts receivable			$ 125
Other current assets			65
Property and equipment			54
Total identified intangible assets	1,600		1,608
Goodwill			4,083
Other long-term assets			9
Total assets acquired			5,944
Liabilities:
Deferred revenue			220
Other current liabilities			111
Long-term deferred tax liabilities			921
Other long-term obligations			19
Total liabilities assumed			1,271
Total purchase price			$ 4,673
LifeLock
Assets:
Accounts receivable		$ 20
Other current assets		110
Property and equipment		46
Total identified intangible assets	$ 1,200	1,247
Goodwill		1,401
Deferred tax assets		16
Other long-term assets		13
Total assets acquired		2,853
Liabilities:
Accounts payable		2
Deferred revenue		96
Income taxes payable		5
Other current liabilities		59
Long-term deferred tax liabilities		394
Other long-term obligations		14
Total liabilities assumed		570
Total purchase price		$ 2,283