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Industry Segment Operations (Reportable Segment) (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Oct. 28, 2018	Jul. 29, 2018	Apr. 29, 2018	Jan. 28, 2018	Oct. 29, 2017	Jul. 30, 2017	Apr. 30, 2017	Jan. 29, 2017	Oct. 28, 2018	Oct. 29, 2017	Oct. 30, 2016
Information for each reportable segment
Net Sales	$ 4,014	$ 4,468	$ 4,567	$ 4,204	$ 3,969	$ 3,744	$ 3,546	$ 3,278	$ 17,253	$ 14,537	$ 10,825
Operating Income (Loss)									4,796	3,868	2,152
Depreciation/ Amortization									457	407	389
Capital Expenditures									622	345	253
Accounts Receivable	2,565				2,338				2,565	2,338	2,279
Inventories	3,722				2,930				3,722	2,930	2,050
Operating Segments \| Semiconductor Systems
Information for each reportable segment
Net Sales									10,903	9,517	6,873
Operating Income (Loss)									3,634	3,173	1,807
Depreciation/ Amortization									303	286	277
Capital Expenditures									168	150	114
Accounts Receivable	1,755				1,626				1,755	1,626	1,524
Inventories	2,213				1,760				2,213	1,760	1,188
Operating Segments \| Applied Global Services
Information for each reportable segment
Net Sales									3,754	3,017	2,589
Operating Income (Loss)									1,102	817	682
Depreciation/ Amortization									21	15	12
Capital Expenditures									33	21	14
Accounts Receivable	610				564				610	564	559
Inventories	1,243				762				1,243	762	594
Operating Segments \| Display and Adjacent Markets
Information for each reportable segment
Net Sales									2,498	1,900	1,206
Operating Income (Loss)									679	502	245
Depreciation/ Amortization									20	12	5
Capital Expenditures									39	17	6
Accounts Receivable	248				190				248	190	238
Inventories	249				367				249	367	215
Corporate and Other
Information for each reportable segment
Net Sales									98	103	157
Operating Income (Loss)									(619)	(624)	(582)
Depreciation/ Amortization									113	94	95
Capital Expenditures									382	157	119
Accounts Receivable	(48)				(42)				(48)	(42)	(42)
Inventories	$ 17				$ 41				$ 17	$ 41	$ 53