Industry Segment Operations (Net Sales and Operating Income (Loss)) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Jan. 25, 2015	Jan. 26, 2014
Net sales and operating income (loss) for each reportable segment
Net Sales	$ 2,359	$ 2,190
Operating Income (Loss)	458	330
Operating Segments [Member]
Net sales and operating income (loss) for each reportable segment
Net Sales	2,359	2,190
Operating Income (Loss)	528	454
Operating Segments [Member] | Silicon Systems Group [Member]
Net sales and operating income (loss) for each reportable segment
Net Sales	1,446	1,484
Operating Income (Loss)	307	314
Operating Segments [Member] | Applied Global Services [Member]
Net sales and operating income (loss) for each reportable segment
Net Sales	583	507
Operating Income (Loss)	153	125
Operating Segments [Member] | Display [Member]
Net sales and operating income (loss) for each reportable segment
Net Sales	275	159
Operating Income (Loss)	72	26
Operating Segments [Member] | Energy And Environmental Solutions [Member]
Net sales and operating income (loss) for each reportable segment
Net Sales	55	40
Operating Income (Loss)	$ (4)	$ (11)