Business Divestiture (Details) - Wireless LAN (WLAN) - Disposal Group, Disposed of by Sale, Not Discontinued Operations - USD ($) $ in Millions		3 Months Ended	9 Months Ended
	Sep. 13, 2016	Oct. 01, 2016	Oct. 01, 2016
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from divestiture of businesses	$ 55
Loss on write-down		$ 62
Goodwill impairment		32
Revenue from sale of assets			$ 76
Gross profit from sale of assets			$ 37
Other Intangible Assets
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Impairment of intangible assets		$ 30