Goodwill, Purchased Technology and Other Intangible Assets (Amortization Expense by Segment) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jul. 31, 2016	Jul. 26, 2015	Jul. 31, 2016	Jul. 26, 2015
Finite-Lived Intangible Assets [Line Items]
Amortization expense	$ 47	$ 46	$ 142	$ 138
Corporate and Other [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization expense	0	0	2	2
Semiconductor Systems [Member] | Operating Segments [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization expense	47	45	139	132
Applied Global Services [Member] | Operating Segments [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization expense	0	0	1	1
Display and Adjacent Markets [Member] | Operating Segments [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization expense	$ 0	$ 1	$ 0	$ 3