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Business Divestiture (Details) - Disposal Group, Disposed of by Sale, Not Discontinued Operations - Wireless LAN (WLAN) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Oct. 28, 2016
Oct. 01, 2016
Oct. 01, 2016
Sep. 13, 2016
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]        
Divesture of business gross purchase price       $ 55
Proceeds from divestiture of businesses $ 39      
Non-cash pre-tax charge   $ 62 $ 62  
Impairment of goodwill   32 32  
Revenue from sale of assets   34 99  
Gross profit from sale of assets   16 45  
Other Intangibles        
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]        
Impairment of other intangibles   $ 30 $ 30