Goodwill, Purchased Technology and Other Intangible Assets (Goodwill and Other Indefinite-lived Intangible Assets) (Details) - USD ($) $ in Millions	Oct. 25, 2015	Oct. 26, 2014
Indefinite-lived intangible assets
Goodwill	$ 3,302	$ 3,304
Other Intangible Assets	25	127
Total	3,327	3,431
Silicon Systems
Indefinite-lived intangible assets
Goodwill	2,151	2,151
Other Intangible Assets	0	103
Total	2,151	2,254
Applied Global Services
Indefinite-lived intangible assets
Goodwill	1,027	1,027
Other Intangible Assets	5	6
Total	1,032	1,033
Display
Indefinite-lived intangible assets
Goodwill	124	126
Other Intangible Assets	18	18
Total	142	144
Energy and Environmental Solutions
Indefinite-lived intangible assets
Goodwill	0	0
Other Intangible Assets	2	0
Total	$ 2	$ 0