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v3.25.3

Summary of Significant Accounting Policies and Recently Adopted Accounting Standards - Government Assistance (Details) | 12 Months Ended
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Oct. 26, 2025
Accounting Policies [Abstract] |
Government assistance statement of income, extensible enumeration, not disclosed | capital expenditure

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- Definition Government Assistance Statement Of Income Or Comprehensive Income Extensible Enumeration Not Disclosed Flag + References No definition available. + Details
Name: | amat_GovernmentAssistanceStatementOfIncomeOrComprehensiveIncomeExtensibleEnumerationNotDisclosedFlag
Namespace Prefix: | amat_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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