Goodwill, Purchased Technology and Other Intangible Assets (Schedule of Finite-lived Intangible Assets) (Details) - USD ($) $ in Millions	Jan. 27, 2019	Oct. 28, 2018
Finite-lived intangible assets
Gross carrying amount:	$ 1,988	$ 1,988
Accumulated amortization:	(1,789)	(1,775)
Total	199	213
Corporate and Other
Finite-lived intangible assets
Gross carrying amount:	9	9
Accumulated amortization:	(9)	(9)
Semiconductor Systems | Operating Segments
Finite-lived intangible assets
Gross carrying amount:	1,701	1,701
Accumulated amortization:	(1,536)	(1,525)
Applied Global Services | Operating Segments
Finite-lived intangible assets
Gross carrying amount:	77	77
Accumulated amortization:	(73)	(73)
Display and Adjacent Markets | Operating Segments
Finite-lived intangible assets
Gross carrying amount:	201	201
Accumulated amortization:	(171)	(168)
Purchased technology, net
Finite-lived intangible assets
Gross carrying amount:	1,645	1,645
Accumulated amortization:	(1,546)	(1,536)
Total	99	109
Purchased technology, net | Corporate and Other
Finite-lived intangible assets
Gross carrying amount:	0	0
Accumulated amortization:	0	0
Purchased technology, net | Semiconductor Systems | Operating Segments
Finite-lived intangible assets
Gross carrying amount:	1,449	1,449
Accumulated amortization:	(1,382)	(1,375)
Purchased technology, net | Applied Global Services | Operating Segments
Finite-lived intangible assets
Gross carrying amount:	33	33
Accumulated amortization:	(29)	(29)
Purchased technology, net | Display and Adjacent Markets | Operating Segments
Finite-lived intangible assets
Gross carrying amount:	163	163
Accumulated amortization:	(135)	(132)
Intangible assets
Finite-lived intangible assets
Gross carrying amount:	343	343
Accumulated amortization:	(243)	(239)
Total	100	104
Intangible assets | Corporate and Other
Finite-lived intangible assets
Gross carrying amount:	9	9
Accumulated amortization:	(9)	(9)
Intangible assets | Semiconductor Systems | Operating Segments
Finite-lived intangible assets
Gross carrying amount:	252	252
Accumulated amortization:	(154)	(150)
Intangible assets | Applied Global Services | Operating Segments
Finite-lived intangible assets
Gross carrying amount:	44	44
Accumulated amortization:	(44)	(44)
Intangible assets | Display and Adjacent Markets | Operating Segments
Finite-lived intangible assets
Gross carrying amount:	38	38
Accumulated amortization:	$ (36)	$ (36)