Industry Segment Operations (Net Sales and Operating Income (Loss)) (Details) - USD ($) $ in Millions	3 Months Ended
	Jan. 31, 2016	Jan. 25, 2015
Net sales and operating income (loss) for each reportable segment
Net Sales	$ 2,257	$ 2,359
Operating Income (Loss)	354	458
Operating Segments [Member]
Net sales and operating income (loss) for each reportable segment
Net Sales	2,257	2,359
Operating Income (Loss)	465	528
Operating Segments [Member] | Silicon Systems [Member]
Net sales and operating income (loss) for each reportable segment
Net Sales	1,373	1,446
Operating Income (Loss)	265	307
Operating Segments [Member] | Applied Global Services [Member]
Net sales and operating income (loss) for each reportable segment
Net Sales	626	583
Operating Income (Loss)	156	153
Operating Segments [Member] | Display [Member]
Net sales and operating income (loss) for each reportable segment
Net Sales	213	275
Operating Income (Loss)	38	72
Operating Segments [Member] | Energy And Environmental Solutions [Member]
Net sales and operating income (loss) for each reportable segment
Net Sales	45	55
Operating Income (Loss)	$ 6	$ (4)