Document and Entity Information	9 Months Ended
	Jul. 31, 2012	Aug. 31, 2012
Document and Entity Information
Entity Registrant Name	HEWLETT PACKARD CO
Entity Central Index Key	0000047217
Document Type	10-Q
Document Period End Date	Jul. 31, 2012
Amendment Flag	false
Current Fiscal Year End Date	--10-31
Entity Current Reporting Status	Yes
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		1,966,161,234
Document Fiscal Year Focus	2012
Document Fiscal Period Focus	Q3