v3.10.0.1

Segment Information - Segment Operating Results from Continuing Operations (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Jul. 31, 2018 | Jul. 31, 2017 | Jul. 31, 2018 | Jul. 31, 2017
Segment Reporting Information [Line Items] |  |  |  |
Net revenue | $ 7,764 | $ 7,501 | $ 22,906 | $ 21,211
Segment earnings (loss) from continuing operations | 516 | 201 | 1,174 | 849
Intersegment net revenue and other |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net revenue | 192 | 187 | 537 | 740
Operating Segment |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net revenue | 7,956 | 7,688 | 23,443 | 21,951
Segment earnings (loss) from continuing operations | 801 | 631 | 2,195 | 1,975
Hybrid IT |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net revenue | 6,058 | 5,898 | 18,086 | 16,782
Hybrid IT | Intersegment net revenue and other |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net revenue | 185 | 182 | 511 | 690
Hybrid IT | Operating Segment |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net revenue | 6,243 | 6,080 | 18,597 | 17,472
Segment earnings (loss) from continuing operations | 661 | 482 | 1,890 | 1,672
Intelligent Edge |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net revenue | 784 | 707 | 2,100 | 1,864
Intelligent Edge | Intersegment net revenue and other |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net revenue | 1 | 4 | 15 | 23
Intelligent Edge | Operating Segment |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net revenue | 785 | 711 | 2,115 | 1,887
Segment earnings (loss) from continuing operations | 91 | 104 | 155 | 166
Financial Services |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net revenue | 922 | 896 | 2,721 | 2,565
Financial Services | Intersegment net revenue and other |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net revenue | 6 | 1 | 11 | 27
Financial Services | Operating Segment |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net revenue | 928 | 897 | 2,732 | 2,592
Segment earnings (loss) from continuing operations | 73 | 69 | 217 | 222
Corporate Investments |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net revenue | 0 | 0 | (1) | 0
Corporate Investments | Intersegment net revenue and other |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net revenue | 0 | 0 | 0 | 0
Corporate Investments | Operating Segment |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net revenue | 0 | 0 | (1) | 0
Segment earnings (loss) from continuing operations | $ (24) | $ (24) | $ (67) | $ (85)

X
- Definition The net result for the period of deducting operating expenses from operating revenues. + References No definition available. + Details
Name: | us-gaap_OperatingIncomeLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 + Details
Name: | us-gaap_Revenues
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: | us-gaap_ConsolidationItemsAxis=us-gaap_IntersegmentEliminationMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ConsolidationItemsAxis=us-gaap_OperatingSegmentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=hpe_HybridITMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=hpe_IntelligentEdgeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=hpe_FinancialServicesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=hpe_CorporateInvestmentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |