Industry Segment Operations (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Jul. 29, 2012	Jul. 31, 2011	Jul. 29, 2012	Jul. 31, 2011
Net sales and operating income (loss) for each reportable segment
Net Sales	$ 2,343	$ 2,787	$ 7,073	$ 8,336
Operating Income (loss)	322	687	910	2,037
Silicon Systems Group [Member]
Net sales and operating income (loss) for each reportable segment
Net Sales	1,545	1,398	4,666	4,348
Operating Income (loss)	427	452	1,202	1,486
Applied Global Services [Member]
Net sales and operating income (loss) for each reportable segment
Net Sales	579	603	1,664	1,784
Operating Income (loss)	122	146	338	322
Display [Member]
Net sales and operating income (loss) for each reportable segment
Net Sales	142	223	380	528
Operating Income (loss)	10	58	23	116
Energy and Environmental Solutions [Member]
Net sales and operating income (loss) for each reportable segment
Net Sales	77	563	363	1,676
Operating Income (loss)	(102)	123	(188)	436
Operating Segments [Member]
Net sales and operating income (loss) for each reportable segment
Net Sales	2,343	2,787	7,073	8,336
Operating Income (loss)	$ 457	$ 779	$ 1,375	$ 2,360