v3.8.0.1

Segment Information - Narrative (Details) $ in Millions |  | 6 Months Ended
--- | --- | ---
Nov. 01, 2017 segment | Apr. 30, 2018 segment | Apr. 30, 2017 USD ($)
Segment Reporting [Abstract] |  |  |
Number of segments | segment | 2 | 4 |
Advanced payments from advanced royalty payment arrangements | $ |  |  | $ 439
Term of arrangements |  |  | 15 years

X
- Definition Represents the amount of eliminated legal entity advance royalty proceeds received from intercompany royalty and licensing arrangements during the period. + References No definition available. + Details
Name: | hpe_AdvanceRoyaltyProceedsReceivedFromIntercompanyRoyaltyAndLicensingArrangements
Namespace Prefix: | hpe_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Represents the royalty revenue recognition term. + References No definition available. + Details
Name: | hpe_RoyaltyRevenueRecognizedTerm
Namespace Prefix: | hpe_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements. + References No definition available. + Details
Name: | us-gaap_NumberOfReportableSegments
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_SegmentReportingAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration