v3.7.0.1

Overview and Basis of Presentation (Details) - USD ($) $ in Millions |  |  |  | 3 Months Ended | 12 Months Ended
--- | --- | --- | --- | --- | ---
Apr. 01, 2017 | Sep. 07, 2016 | Nov. 01, 2015 | Apr. 30, 2017 | Oct. 31, 2016
Segment Reporting Information |  |  |  |  |
Outstanding shares distributed |  |  | 100.00% |  |
separation related adjustments |  |  |  |  | $ 1,200
Former Parent Company |  |  |  |  |
Segment Reporting Information |  |  |  |  |
Distribution ratio |  |  | 1 |  |
Shares distributed to shareholder (in shares) |  |  | 1,800,000,000 |  |
Enterprise Services | Discontinued Operations, Disposed of by Means Other than Sale, Spinoff |  |  |  |  |
Segment Reporting Information |  |  |  |  |
Shares distributed to shareholder (in shares) | 0.085904 |  |  |  |
Net cash transfer | $ 500 |  |  | $ 559 |
Shareholders | Non-Core Software Seattle SpinCo With Micro Focus | Disposal Group, Disposed of by Means Other than Sale, Not Discontinued Operations, Spinoff |  |  |  |  |
Segment Reporting Information |  |  |  |  |
Business acquisition percentage of voting interests expected to be acquired by entity shareholders |  | 50.10% |  |  |
Dividends |  | $ 2,500 |  |  |
Accounting Standards Update 2015-03 | Long-Term Financing Receivables And Other Assets |  |  |  |  |
Segment Reporting Information |  |  |  |  |
Deferred debt issuance costs |  |  |  |  | (50)
Accounting Standards Update 2015-03 | Notes Payable And Short-Term Borrowings And Long-Term Debt |  |  |  |  |
Segment Reporting Information |  |  |  |  |
Deferred debt issuance costs |  |  |  |  | $ 50
Hewlett Packard Enterprise Company | Everett SpinCo |  |  |  |  |
Segment Reporting Information |  |  |  |  |
Debt | 3,500 |  |  |  |
Dividends | 3,000 |  |  |  |
Hewlett Packard Enterprise Company | Senior Notes | Everett SpinCo |  |  |  |  |
Segment Reporting Information |  |  |  |  |
Debt | 1,500 |  |  |  |
Hewlett Packard Enterprise Company | Line of Credit | Everett SpinCo |  |  |  |  |
Segment Reporting Information |  |  |  |  |
Debt | $ 2,000 |  |  |  |

X
- Definition Represents the percentage of voting equity interests expected to be acquired by the entity's shareholders in the business combination. + References No definition available. + Details
Name: | hpe_BusinessAcquisitionPercentageOfVotingInterestsExpectedToBeAcquiredByEntityShareholders
Namespace Prefix: | hpe_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Represents the number of shares distributed to the former parent company for each common share of the reporting entity based on the record date. + References No definition available. + Details
Name: | hpe_EquivalentSharesDistributedSpinoff
Namespace Prefix: | hpe_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Net Cash Transfer To Entity Spun Off + References No definition available. + Details
Name: | hpe_NetCashTransferToEntitySpunOff
Namespace Prefix: | hpe_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Outstanding Shares Of Company Distributed To Stockholders Of Former Parent, Percentage + References No definition available. + Details
Name: | hpe_OutstandingSharesOfCompanyDistributedToStockholdersOfFormerParentPercentage
Namespace Prefix: | hpe_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Separation Related Adjustments [Member] + References No definition available. + Details
Name: | hpe_SeparationRelatedAdjustments
Namespace Prefix: | hpe_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Represents the number of the company shares distributed by former parent company to the former Parent company stockholders in a spinoff transaction + References No definition available. + Details
Name: | hpe_SharesDistributedToShareholder
Namespace Prefix: | hpe_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition For an unclassified balance sheet, the carrying amount (net of accumulated amortization) as of the balance sheet date of capitalized costs associated with the issuance of debt instruments (for example, legal, accounting, underwriting, printing, and registration costs) that will be charged against earnings over the life of the debt instruments to which such costs pertain. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28555-108399 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.17) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_DeferredFinanceCostsNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of paid and unpaid cash, stock, and paid-in-kind (PIK) dividends declared, for example, but not limited to, common and preferred stock. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 405 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6957935&loc=d3e64057-112817 + Details
Name: | us-gaap_Dividends
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.16) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.16) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 20, 22 -Article 5 + Details
Name: | us-gaap_LongTermDebt
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Cash outflow in the form of capital distributions and dividends to common shareholders, preferred shareholders and noncontrolling interests. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3291-108585 + Details
Name: | us-gaap_PaymentsOfDividends
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_SegmentReportingInformationLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | dei_LegalEntityAxis=hpe_FormerParentCompanyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis=hpe_EnterpriseServicesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DisposalGroupClassificationAxis=us-gaap_DiscontinuedOperationsDisposedOfByMeansOtherThanSaleSpinoffMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=hpe_ShareholdersMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis=hpe_NonCoreSoftwareSeattleSpinCoWithMicroFocusMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DisposalGroupClassificationAxis=us-gaap_DisposalGroupDisposedOfByMeansOtherThanSaleNotDiscontinuedOperationsSpinoffMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AdjustmentsForNewAccountingPronouncementsAxis=hpe_AccountingStandardsUpdate201503Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BalanceSheetLocationAxis=hpe_LongTermFinancingReceivablesAndOtherAssetsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BalanceSheetLocationAxis=hpe_NotesPayableAndShortTermBorrowingsAndLongTermDebtMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BusinessAcquisitionAxis=hpe_HewlettPackardEnterpriseCompanyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=hpe_EverettSpinCoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LongtermDebtTypeAxis=us-gaap_SeniorNotesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LongtermDebtTypeAxis=us-gaap_LineOfCreditMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |