Goodwill, Purchased Technology and Other Intangible Assets (Narrative) (Details) $ in Millions	12 Months Ended
	Oct. 29, 2017 USD ($)
Finite-Lived Intangible Assets [Line Items]
Goodwill and other indefinite lived intangible assets acquired through acquisitions	$ 27
Minimum
Finite-Lived Intangible Assets [Line Items]
Useful Life	1 year
Maximum
Finite-Lived Intangible Assets [Line Items]
Useful Life	15 years