Document and Entity Information - USD ($)	12 Months Ended
	Oct. 29, 2017	Dec. 08, 2017	Apr. 28, 2017
Document and Entity Information [Abstract]
Entity Registrant Name	APPLIED MATERIALS INC /DE
Entity Central Index Key	0000006951
Current Fiscal Year End Date	--10-29
Entity Filer Category	Large Accelerated Filer
Document Type	10-K
Document Period End Date	Oct. 29, 2017
Document Fiscal Year Focus	2017
Document Fiscal Period Focus	FY
Amendment Flag	false
Entity Common Stock, Shares Outstanding		1,056,340,714
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Public Float			$ 43,552,849,133