Industry Segment Operations - Net Sales and Operating Income (Loss) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jul. 31, 2022	Aug. 01, 2021	Jul. 31, 2022	Aug. 01, 2021
Net sales and operating income (loss) for each reportable segment
Net Sales	$ 6,520	$ 6,196	$ 19,036	$ 16,940
Operating Income (Loss)	1,924	2,013	5,794	4,875
Corporate and Other
Net sales and operating income (loss) for each reportable segment
Net Sales	33	25	74	100
Operating Income (Loss)	$ (280)	$ (264)	$ (811)	$ (1,025)
Semiconductor Systems | Sales Revenue | Product Concentration Risk
Net sales and operating income (loss) for each reportable segment
Percentage of net sales	100.00%	100.00%	100.00%	100.00%
Semiconductor Systems | Foundry, logic and other | Sales Revenue | Product Concentration Risk
Net sales and operating income (loss) for each reportable segment
Percentage of net sales	66.00%	63.00%	64.00%	59.00%
Semiconductor Systems | Dynamic random-access memory (DRAM) | Sales Revenue | Product Concentration Risk
Net sales and operating income (loss) for each reportable segment
Percentage of net sales	15.00%	20.00%	20.00%	17.00%
Semiconductor Systems | Flash memory | Sales Revenue | Product Concentration Risk
Net sales and operating income (loss) for each reportable segment
Percentage of net sales	19.00%	17.00%	16.00%	24.00%
Semiconductor Systems | Operating Segments
Net sales and operating income (loss) for each reportable segment
Net Sales	$ 4,734	$ 4,454	$ 13,759	$ 11,979
Operating Income (Loss)	1,701	1,785	5,120	4,588
Applied Global Services | Operating Segments
Net sales and operating income (loss) for each reportable segment
Net Sales	1,420	1,286	4,123	3,644
Operating Income (Loss)	434	393	1,259	1,083
Display and Adjacent Markets | Operating Segments
Net sales and operating income (loss) for each reportable segment
Net Sales	333	431	1,080	1,217
Operating Income (Loss)	$ 69	$ 99	$ 226	$ 229