| Cover Page | Oct. 15, 2020 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Document Period End Date | Oct. 15, 2020 |
| Entity Registrant Name | Hewlett Packard Enterprise Company |
| Entity Incorporation, State or Country Code | DE |
| Entity File Number | 001-37483 |
| 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 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Common stock, par value $0.01 per share |
| Trading Symbol | HPE |
| Security Exchange Name | NYSE |
| Entity Emerging Growth Company | false |
| Entity Central Index Key | 0001645590 |
| Amendment Flag | false |
| Document Information [Line Items] | |
| Document Period End Date | Oct. 15, 2020 |
