Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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Industry Segment Operations (Reportable Segment) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended								12 Months Ended
	Oct. 26, 2014	Jul. 27, 2014	Apr. 27, 2014	Jan. 26, 2014	Oct. 27, 2013	Jul. 28, 2013	Apr. 28, 2013	Jan. 27, 2013	Oct. 26, 2014	Oct. 27, 2013	Oct. 28, 2012
Information for each reportable segment
Net Sales	$ 2,264us-gaap_SalesRevenueNet	$ 2,265us-gaap_SalesRevenueNet	$ 2,353us-gaap_SalesRevenueNet	$ 2,190us-gaap_SalesRevenueNet	$ 1,988us-gaap_SalesRevenueNet	$ 1,975us-gaap_SalesRevenueNet	$ 1,973us-gaap_SalesRevenueNet	$ 1,573us-gaap_SalesRevenueNet	$ 9,072us-gaap_SalesRevenueNet	$ 7,509us-gaap_SalesRevenueNet	$ 8,719us-gaap_SalesRevenueNet
Operating Income (Loss)									1,520us-gaap_OperatingIncomeLoss	432us-gaap_OperatingIncomeLoss	411us-gaap_OperatingIncomeLoss
Depreciation/ Amortization									375us-gaap_DepreciationAndAmortization	410us-gaap_DepreciationAndAmortization	422us-gaap_DepreciationAndAmortization
Capital Expenditures									241	197	162
Segment Assets	13,174us-gaap_Assets				12,043us-gaap_Assets				13,174us-gaap_Assets	12,043us-gaap_Assets
Operating Segments [Member]
Information for each reportable segment
Net Sales									9,072	7,509	8,719
Operating Income (Loss)									2,108	953	1,102
Depreciation/ Amortization									293	303	319
Capital Expenditures									146	132	86
Segment Assets	8,146				7,959				8,146	7,959	7,932
Operating Segments [Member] \| Silicon Systems Group [Member]
Information for each reportable segment
Net Sales									5,978	4,775	5,536
Operating Income (Loss)									1,391	876	1,243
Depreciation/ Amortization									268	260	256
Capital Expenditures									134	118	71
Segment Assets	5,508				5,525				5,508	5,525	5,106
Operating Segments [Member] \| Applied Global Services [Member]
Information for each reportable segment
Net Sales									2,200	2,023	2,285
Operating Income (Loss)									573	436	502
Depreciation/ Amortization									11	13	17
Capital Expenditures									7	7	8
Segment Assets	2,042				1,958				2,042	1,958	2,035
Operating Segments [Member] \| Display [Member]
Information for each reportable segment
Net Sales									615	538	473
Operating Income (Loss)									129	74	25
Depreciation/ Amortization									5	8	8
Capital Expenditures									4	6	1
Segment Assets	423				293				423	293	278
Operating Segments [Member] \| Energy and Environmental Solutions [Member]
Information for each reportable segment
Net Sales									279	173	425
Operating Income (Loss)									15	(433)	(668)
Depreciation/ Amortization									9	22	38
Capital Expenditures									1	1	6
Segment Assets	$ 173				$ 183				$ 173	$ 183	$ 513