Fair value of level one and level two transfers amount.

No definition available.

Name:	amat_FairValueOfLevelOneAndLevelTwoTransfersAmount
Namespace Prefix:	amat_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Fair value portion of investments accounted under the cost method.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 325

-SubTopic 20

-Section 25

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=29638263&loc=d3e39828-111592

+ Details

Name:	us-gaap_CostMethodInvestmentsFairValueDisclosure
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The amount by which the fair value of an investment is less than the amortized cost basis or carrying amount of that investment at the balance sheet date and the decline in fair value is deemed to be other than temporary, before considering whether or not such amount is recognized in earnings or other comprehensive income.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

-Section 35

-Paragraph 34

-URI http://asc.fasb.org/extlink&oid=27723805&loc=d3e25351-111560

+ Details

Name:	us-gaap_ImpairmentOfInvestments
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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

+ References

No definition available.

+ Details

Name:	us-gaap_LongTermDebtFairValue
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Fair Value Measurements (Details Textual) (USD $)	3 Months Ended
Fair Value Measurements (Details Textual) (USD $)	Jan. 26, 2014	Jan. 27, 2013	Jan. 26, 2014 Equity Investments In Privately Held Companies [Member]	Jan. 27, 2013 Equity Investments In Privately Held Companies [Member]	Jan. 26, 2014 Carrying Amount [Member]	Oct. 27, 2013 Carrying Amount [Member]	Jan. 26, 2014 Carrying Amount [Member] Equity Investments In Privately Held Companies [Member] Short Term And Long Term Investments [Member]	Oct. 27, 2013 Carrying Amount [Member] Equity Investments In Privately Held Companies [Member] Short Term And Long Term Investments [Member]	Jan. 26, 2014 Portion at Cost [Member]	Oct. 27, 2013 Portion at Cost [Member]	Jan. 26, 2014 Portion at Fair Value Measurement [Member] Fair Value, Measurements, Nonrecurring [Member] Level 3 [Member]	Oct. 27, 2013 Portion at Fair Value Measurement [Member] Fair Value, Measurements, Nonrecurring [Member] Level 3 [Member]	Jan. 26, 2014 Estimated Fair Value [Member] Level 2 [Member]	Oct. 27, 2013 Estimated Fair Value [Member] Level 2 [Member]
Schedule of Investment Income, Reported Amounts, by Category [Line Items]
Fair value of level one and level two transfers amount	$ 0	$ 0
Equity investments in privately-held companies measured on non-recurring basis							76,000,000	76,000,000	66,000,000	66,000,000	10,000,000	10,000,000
Investment impairments			3,000,000	0
Long-term debt					$ 1,900,000,000	$ 1,900,000,000							$ 2,100,000,000	$ 2,100,000,000