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

Accounts Receivable, Discount Letters Of Credit Issued During Period

No definition available.

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