Commitments and Contingencies Commitments and Contingencies (Legal Proceedings) (Details) shares in Thousands	Jan. 28, 2017 shares	Oct. 29, 2016 shares	May 27, 2016 $ / shares shares
Legal Proceedings [Line Items]
Common stock, shares outstanding	407,514	401,748
Ruckus
Legal Proceedings [Line Items]
Common stock, shares outstanding			92,200
Cash Per Share in Acquisition | $ / shares			$ 6.45
Common Stock Per Share in Acquisition			0.75
Shares Dissented [Member] | Ruckus
Legal Proceedings [Line Items]
Common stock, shares outstanding			3,200