Industry Segment Operations (Net Sales and Operating Income (Loss)) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jul. 26, 2015	Jul. 27, 2014	Jul. 26, 2015	Jul. 27, 2014
Net sales and operating income (loss) for each reportable segment
Net Sales	$ 2,490	$ 2,265	$ 7,291	$ 6,808
Operating Income (Loss)	396	391	1,270	1,108
Operating Segments [Member]
Net sales and operating income (loss) for each reportable segment
Net Sales	2,490	2,265	7,291	6,808
Operating Income (Loss)	554	584	1,661	1,608
Operating Segments [Member] | Silicon Systems Group [Member]
Net sales and operating income (loss) for each reportable segment
Net Sales	1,635	1,476	4,641	4,544
Operating Income (Loss)	411	381	1,092	1,086
Operating Segments [Member] | Applied Global Services [Member]
Net sales and operating income (loss) for each reportable segment
Net Sales	665	567	1,894	1,608
Operating Income (Loss)	170	154	493	427
Operating Segments [Member] | Display [Member]
Net sales and operating income (loss) for each reportable segment
Net Sales	151	119	589	425
Operating Income (Loss)	25	25	137	77
Operating Segments [Member] | Energy And Environmental Solutions [Member]
Net sales and operating income (loss) for each reportable segment
Net Sales	39	103	167	231
Operating Income (Loss)	$ (52)	$ 24	$ (61)	$ 18