| Cover Page | Apr. 14, 2021 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Document Period End Date | Apr. 14, 2021 |
| 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 | 11445 COMPAQ CENTER WEST DRIVE |
| Entity Address, City or Town | HOUSTON |
| Entity Address, State or Province | TX |
| Entity Address, Postal Zip Code | 77070 |
| 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 | Apr. 14, 2021 |
