Goodwill, Purchased Technology and Other Intangible Assets (Schedule of Finite-lived Intangible Assets) (Details) (USD $) In Millions, unless otherwise specified	Apr. 26, 2015	Oct. 26, 2014
Finite-lived intangible assets
Gross carrying amount	$ 1,834	$ 1,835
Accumulated amortization	(1,103)	(1,011)
Total	731us-gaap_FiniteLivedIntangibleAssetsNet	824us-gaap_FiniteLivedIntangibleAssetsNet
Silicon Systems Group [Member]
Finite-lived intangible assets
Gross carrying amount	1,598	1,598
Accumulated amortization	(880)	(793)
Applied Global Services [Member]
Finite-lived intangible assets
Gross carrying amount	73	72
Accumulated amortization	(69)	(68)
Display [Member]
Finite-lived intangible assets
Gross carrying amount	143	143
Accumulated amortization	(143)	(141)
Energy And Environmental Solutions [Member]
Finite-lived intangible assets
Gross carrying amount	20	22
Accumulated amortization	(11)	(9)
Purchased technology [Member]
Finite-lived intangible assets
Gross carrying amount	1,490	1,489
Accumulated amortization	(933)	(853)
Total	557	636
Purchased technology [Member] \| Silicon Systems Group [Member]
Finite-lived intangible assets
Gross carrying amount	1,346	1,346
Accumulated amortization	(794)	(716)
Purchased technology [Member] \| Applied Global Services [Member]
Finite-lived intangible assets
Gross carrying amount	29	28
Accumulated amortization	(25)	(24)
Purchased technology [Member] \| Display [Member]
Finite-lived intangible assets
Gross carrying amount	110	110
Accumulated amortization	(110)	(110)
Purchased technology [Member] \| Energy And Environmental Solutions [Member]
Finite-lived intangible assets
Gross carrying amount	5	5
Accumulated amortization	(4)	(3)
Other [Member]
Finite-lived intangible assets
Gross carrying amount	344	346
Accumulated amortization	(170)	(158)
Total	174	188
Other [Member] \| Silicon Systems Group [Member]
Finite-lived intangible assets
Gross carrying amount	252	252
Accumulated amortization	(86)	(77)
Other [Member] \| Applied Global Services [Member]
Finite-lived intangible assets
Gross carrying amount	44	44
Accumulated amortization	(44)	(44)
Other [Member] \| Display [Member]
Finite-lived intangible assets
Gross carrying amount	33	33
Accumulated amortization	(33)	(31)
Other [Member] \| Energy And Environmental Solutions [Member]
Finite-lived intangible assets
Gross carrying amount	15	17
Accumulated amortization	$ (7)	$ (6)

Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 30

-Section 50

-Paragraph 2

-Subparagraph (a)(1)

-URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275

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