Goodwill, Purchased Technology and Other Intangible Assets (Finite-lived Intangible Assets) (Details) (USD $) In Millions, unless otherwise specified	Oct. 26, 2014	Oct. 27, 2013
Amortized intangible assets
Gross carrying amount	$ 1,835	$ 1,788
Accumulated amortization	(1,011)	(827)
Carrying amount	824us-gaap_FiniteLivedIntangibleAssetsNet	961us-gaap_FiniteLivedIntangibleAssetsNet
Silicon Systems Group [Member]
Amortized intangible assets
Gross carrying amount	1,598	1,553
Accumulated amortization	(793)	(620)
Applied Global Services [Member]
Amortized intangible assets
Gross carrying amount	72	72
Accumulated amortization	(68)	(65)
Display [Member]
Amortized intangible assets
Gross carrying amount	143	143
Accumulated amortization	(141)	(139)
Energy and Environmental Solutions [Member]
Amortized intangible assets
Gross carrying amount	22	20
Accumulated amortization	(9)	(3)
Purchased Technology [Member]
Amortized intangible assets
Gross carrying amount	1,489	1,444
Accumulated amortization	(853)	(696)
Carrying amount	636	748
Purchased Technology [Member] \| Silicon Systems Group [Member]
Amortized intangible assets
Gross carrying amount	1,346	1,301
Accumulated amortization	(716)	(562)
Purchased Technology [Member] \| Applied Global Services [Member]
Amortized intangible assets
Gross carrying amount	28	28
Accumulated amortization	(24)	(23)
Purchased Technology [Member] \| Display [Member]
Amortized intangible assets
Gross carrying amount	110	110
Accumulated amortization	(110)	(110)
Purchased Technology [Member] \| Energy and Environmental Solutions [Member]
Amortized intangible assets
Gross carrying amount	5	5
Accumulated amortization	(3)	(1)
Other [Member]
Amortized intangible assets
Gross carrying amount	346	344
Accumulated amortization	(158)	(131)
Carrying amount	188	213
Other [Member] \| Silicon Systems Group [Member]
Amortized intangible assets
Gross carrying amount	252	252
Accumulated amortization	(77)	(58)
Other [Member] \| Applied Global Services [Member]
Amortized intangible assets
Gross carrying amount	44	44
Accumulated amortization	(44)	(42)
Other [Member] \| Display [Member]
Amortized intangible assets
Gross carrying amount	33	33
Accumulated amortization	(31)	(29)
Other [Member] \| Energy and Environmental Solutions [Member]
Amortized intangible assets
Gross carrying amount	17	15
Accumulated amortization	$ (6)	$ (2)

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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- Definition

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

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