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Accounts Receivable, Net (Details) - USD ($) | 12 Months Ended
--- | ---
Oct. 26, 2025 | Oct. 27, 2024 | Oct. 29, 2023
Receivables [Abstract] |  |  |
Factored accounts receivable | $ 501,000,000 | $ 444,000,000 | $ 679,000,000
Discounted letters of credit | 0 | 0 | 0
Discounted promissory notes | $ 0 | $ 0 | $ 0

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- Definition Accounts Receivable, Discount Letters Of Credit Issued During Period + References No definition available. + Details
Name: | amat_AccountsReceivableDiscountLettersOfCreditIssuedDuringPeriod
Namespace Prefix: | amat_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition Accounts Receivable Discount Promissory Notes Issued During Period + References No definition available. + Details
Name: | amat_AccountsReceivableDiscountPromissoryNotesIssuedDuringPeriod
Namespace Prefix: | amat_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition Factored Accounts Receivable + References No definition available. + Details
Name: | amat_FactoredAccountsReceivable
Namespace Prefix: | amat_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- References No definition available. + Details
Name: | us-gaap_ReceivablesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration