Goodwill, Purchased Technology and Other Intangible Assets (Amortization Expense by Segment) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jul. 28, 2019	Jul. 29, 2018	Jul. 28, 2019	Jul. 29, 2018
Finite-Lived Intangible Assets [Line Items]
Amortization expense	$ 15	$ 50	$ 43	$ 149
Semiconductor Systems | Operating Segments
Finite-Lived Intangible Assets [Line Items]
Amortization expense	11	47	32	138
Applied Global Services [Member] | Operating Segments
Finite-Lived Intangible Assets [Line Items]
Amortization expense	0	0	1	1
Display and Adjacent Markets | Operating Segments
Finite-Lived Intangible Assets [Line Items]
Amortization expense	$ 4	$ 3	$ 10	$ 10