Business Combinations - Summary of Estimated Fair Value of Assets and Liabilities (Detail) - Enterprise Business $ in Millions	Oct. 27, 2014 USD ($)
Business Acquisition [Line Items]
Cash and cash equivalents	$ 101
Accounts receivable	445
Inventories	264
Deferred income taxes, current	142
Other current assets	22
Property and equipment	123
Deferred income taxes	84
Intangible assets	994
Other non-current assets	49
Deferred revenue	(172)
Tax liabilities	(11)
Deferred income taxes, current	(36)
Other current liabilities	(364)
Long-term deferred revenue	(103)
Unrecognized tax benefits	(6)
Other non-current liabilities	(24)
Deferred income taxes	(299)
Total identifiable net assets	$ 1,209