Industry Segment Operations - Net Sales and Operating Income (Loss) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	May 02, 2021	Apr. 26, 2020	May 02, 2021	Apr. 26, 2020
Net sales and operating income (loss) for each reportable segment
Net Sales	$ 5,582	$ 3,957	$ 10,744	$ 8,119
Operating Income (Loss)	$ 1,579	$ 932	$ 2,862	$ 1,974
Sales Revenue
Net sales and operating income (loss) for each reportable segment
Percentage of net sales	100.00%	100.00%	100.00%	100.00%
Corporate and Other
Net sales and operating income (loss) for each reportable segment
Net Sales	$ 32	$ 7	$ 75	$ 26
Operating Income (Loss)	$ (386)	$ (181)	$ (761)	$ (370)
Semiconductor Systems | Sales Revenue
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
Net sales and operating income (loss) for each reportable segment
Percentage of net sales	56.00%	56.00%	57.00%	62.00%
Semiconductor Systems | Dynamic random-access memory (DRAM) | Sales Revenue
Net sales and operating income (loss) for each reportable segment
Percentage of net sales	14.00%	22.00%	16.00%	18.00%
Semiconductor Systems | Flash memory | Sales Revenue
Net sales and operating income (loss) for each reportable segment
Percentage of net sales	30.00%	22.00%	27.00%	20.00%
Semiconductor Systems | Operating Segments
Net sales and operating income (loss) for each reportable segment
Net Sales	$ 3,972	$ 2,567	$ 7,525	$ 5,381
Operating Income (Loss)	1,542	782	2,803	1,697
Applied Global Services | Operating Segments
Net sales and operating income (loss) for each reportable segment
Net Sales	1,203	1,018	2,358	2,015
Operating Income (Loss)	358	256	690	534
Display and Adjacent Markets | Operating Segments
Net sales and operating income (loss) for each reportable segment
Net Sales	375	365	786	697
Operating Income (Loss)	$ 65	$ 75	$ 130	$ 113