Cover Page - shares	6 Months Ended
	Apr. 30, 2020	May 28, 2020
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Apr. 30, 2020
Document Transition Report	false
Entity File Number	001-37483
Entity Registrant Name	HEWLETT PACKARD ENTERPRISE CO
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	47-3298624
Entity Address, Address Line One	6280 America Center Drive,
Entity Address, City or Town	San Jose,
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	95002
City Area Code	(650)
Local Phone Number	687-5817
Title of 12(b) Security	Common stock, par value $0.01 per share
Trading Symbol	HPE
Security Exchange Name	NYSE
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		1,284,757,155
Entity Central Index Key	0001645590
Amendment Flag	false
Current Fiscal Year End Date	--10-31
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	Q2