Document and Entity Information (USD $)	12 Months Ended
	Oct. 28, 2012	Nov. 21, 2012	Apr. 29, 2012
Document and Entity Information [Abstract]
Entity Registrant Name	APPLIED MATERIALS INC /DE
Entity Central Index Key	0000006951
Current Fiscal Year End Date	--10-28
Entity Filer Category	Large Accelerated Filer
Document Type	10-K
Document Period End Date	Oct. 28, 2012
Document Fiscal Year Focus	2012
Document Fiscal Period Focus	FY
Amendment Flag	false
Entity Common Stock Shares Outstanding		1,197,659,704
Entity Well Known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Public Float			$ 15,382,534,908