Business Divestiture - Assets and Liabilities Held for Sale (Details) - USD ($) $ in Millions	Oct. 01, 2016	Dec. 31, 2015
Disposal Group, Including Discontinued Operation, Assets, Current [Abstract]
Current assets held for sale	$ 68	$ 0
Disposal Group, Including Discontinued Operation, Liabilities, Current [Abstract]
Current liabilities held for sale	21	$ 0
Wireless LAN (WLAN) | Disposal Group, Disposed of by Sale, Not Discontinued Operations
Disposal Group, Including Discontinued Operation, Assets, Current [Abstract]
Accounts receivable, net	27
Inventories, net	14
Prepaid expenses and other current assets	2
Current assets held for sale	43
Disposal Group, Including Discontinued Operation, Assets, Noncurrent [Abstract]
Property and equipment, net	3
Goodwill	0
Other intangibles, net	18
Other long-term assets	4
Total assets held for sale	68
Disposal Group, Including Discontinued Operation, Liabilities, Current [Abstract]
Accrued liabilities	5
Current liabilities held for sale	5
Disposal Group, Including Discontinued Operation, Liabilities, Noncurrent [Abstract]
Deferred revenue	15
Other long-term liabilities	1
Total liabilities held for sale	$ 21