Fair value of level one and level two transfers amount.

No definition available.

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Namespace Prefix:	amat_
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- 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

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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=56944662&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

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- 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

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Period Type:	instant

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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Fair Value Measurements (Details Textual) - USD ($)	3 Months Ended		9 Months Ended
Fair Value Measurements (Details Textual) - USD ($)	Jul. 26, 2015	Jul. 27, 2014	Jul. 26, 2015	Jul. 27, 2014	Oct. 26, 2014
Schedule of Investment Income, Reported Amounts, by Category [Line Items]
Fair value of level one and level two transfers amount	$ 0	$ 0	$ 0	$ 0
Fair Value, Measurements, Nonrecurring [Member] \| Level 3 [Member]
Schedule of Investment Income, Reported Amounts, by Category [Line Items]
Equity investments in privately-held companies measured on non-recurring basis	8,000,000		8,000,000		$ 9,000,000
Equity Investments In Privately Held Companies [Member]
Schedule of Investment Income, Reported Amounts, by Category [Line Items]
Investment impairments	1,000,000	$ 7,000,000	9,000,000	$ 13,000,000
Carrying Amount [Member]
Schedule of Investment Income, Reported Amounts, by Category [Line Items]
Long-term debt	1,500,000,000		1,500,000,000		1,900,000,000
Carrying Amount [Member] \| Equity Investments In Privately Held Companies [Member] \| Short Term And Long Term Investments [Member]
Schedule of Investment Income, Reported Amounts, by Category [Line Items]
Equity investments in privately-held companies measured on non-recurring basis	77,000,000		77,000,000		66,000,000
Portion at Cost [Member]
Schedule of Investment Income, Reported Amounts, by Category [Line Items]
Equity investments in privately-held companies measured on non-recurring basis	69,000,000		69,000,000		57,000,000
Estimated Fair Value [Member] \| Level 2 [Member]
Schedule of Investment Income, Reported Amounts, by Category [Line Items]
Long-term debt	$ 1,700,000,000		$ 1,700,000,000		$ 2,200,000,000