Summary of Significant Accounting Policies - Cash, Cash Equivalents and Short-Term Investments (Details) $ in Thousands	Oct. 28, 2017 USD ($) Investment_Securities	Oct. 29, 2016 USD ($) Investment_Securities	Oct. 31, 2015 USD ($)	Nov. 01, 2014 USD ($)
Unrealized gains and losses on available-for-sale securities classified as short-term investments
Unrealized gains on securities classified as short-term investments	$ 2	$ 846
Unrealized losses on securities classified as short-term investments	(2)	(294)
Net unrealized gain on securities classified as short-term investments	$ 0	$ 552
Total number of investment securities | Investment_Securities	18	100
Available-for-sale, securities in unrealized loss positions, qualitative disclosure, number of positions | Investment_Securities	8	25
Available-for-sale securities, continuous unrealized loss position, less than twelve months, fair value	$ 143,900	$ 729,600
Cash and cash equivalents:
Cash	226,160	67,877
Total cash and cash equivalents	1,047,838	921,132	$ 884,353	$ 569,233
Short-term investments:
Available-for-sale	0	3,110,011
Held-to-maturity (less than one year to maturity)	0	24,650
Total short-term investments	0	3,134,661
Available-for-sale [Member]
Cash and cash equivalents:
Cash equivalents	751,678	693,255
Held-to-maturity [Member]
Cash and cash equivalents:
Cash equivalents	$ 70,000	$ 160,000