Industry Segment Operations - Schedule of Reportable Segment Information (Details) - USD ($) $ in Millions	12 Months Ended
	Oct. 26, 2025	Oct. 27, 2024	Oct. 29, 2023
Segment Reporting Information [Line Items]
Net revenue	$ 28,368	$ 27,176	$ 26,517
Cost of products sold	14,560	14,279	14,133
Gross profit	$ 13,808	$ 12,897	$ 12,384
Gross margin	48.70%	47.50%	46.70%
Operating expenses:
Research, development and engineering	$ 3,570	$ 3,233	$ 3,102
Selling, general and administrative	1,768	1,797	1,628
Restructuring charges	181
Income from operations	$ 8,289	$ 7,867	$ 7,654
Operating margin	29.20%	28.90%	28.90%
Depreciation and amortization	$ 435	$ 392	$ 515
Capital expenditures	2,260	1,190	1,106
Accounts receivable	5,185	5,234	5,165
Inventories	5,915	5,421	5,725
Goodwill	3,707	3,732	3,732
Operating Segments | Semiconductor Systems
Segment Reporting Information [Line Items]
Net revenue	20,798	19,911	19,698
Cost of products sold	9,530	9,379	9,456
Gross profit	$ 11,268	$ 10,532	$ 10,242
Gross margin	54.20%	52.90%	52.00%
Operating expenses:
Research, development and engineering	$ 3,042	$ 2,684	$ 2,544
Selling, general and administrative	847	867	819
Restructuring charges	0
Income from operations	$ 7,379	$ 6,981	$ 6,879
Operating margin	35.50%	35.10%	34.90%
Depreciation and amortization	$ 192	$ 168	$ 235
Capital expenditures	507	425	381
Accounts receivable	3,733	3,816	3,943
Inventories	3,444	2,988	3,433
Goodwill	2,476	2,460	2,460
Operating Segments | Applied Global Services
Segment Reporting Information [Line Items]
Net revenue	6,385	6,225	5,732
Cost of products sold	4,251	4,088	3,911
Gross profit	$ 2,134	$ 2,137	$ 1,821
Gross margin	33.40%	34.30%	31.80%
Operating expenses:
Research, development and engineering	$ 126	$ 114	$ 101
Selling, general and administrative	216	211	191
Restructuring charges	0
Income from operations	$ 1,792	$ 1,812	$ 1,529
Operating margin	28.10%	29.10%	26.70%
Depreciation and amortization	$ 26	$ 22	$ 31
Capital expenditures	57	35	39
Accounts receivable	1,269	1,297	1,111
Inventories	2,301	2,306	2,073
Goodwill	1,032	1,032	1,032
Corporate and Other
Segment Reporting Information [Line Items]
Net revenue	1,185	1,040	1,087
Cost of products sold	779	812	766
Gross profit	406	228	321
Operating expenses:
Research, development and engineering	402	435	457
Selling, general and administrative	705	719	618
Restructuring charges	181
Income from operations	(882)	(926)	(754)
Depreciation and amortization	217	202	249
Capital expenditures	1,696	730	686
Accounts receivable	183	121	111
Inventories	170	127	219
Goodwill	$ 199	$ 240	$ 240