Accounts Receivable, Net (Details) - USD ($)	3 Months Ended	6 Months Ended
Apr. 27, 2025	Apr. 28, 2024	Apr. 27, 2025	Apr. 28, 2024
Receivables [Abstract]
Factored accounts receivable	$ 75,000,000	$ 95,000,000	$ 109,000,000	$ 264,000,000
Discounted letters of credit	0	0	0	0
Discounted promissory notes	$ 0	$ 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