v3.10.0.1

Financing Receivables and Operating Leases - Narrative (Details) - USD ($) $ in Millions | 9 Months Ended
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Jul. 31, 2018 | Jul. 31, 2017
Leases [Abstract] |  |
Financing receivable term, low end of range | 2 years |
Financing receivable term, high end of range | 5 years |
Financing receivable sold | $ 127 | $ 130

X
- Definition The high end of the range of the term of financing receivables. + References No definition available. + Details
Name: | hpe_FinancingReceivableTermRangeMaximum
Namespace Prefix: | hpe_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition The low end of the range of the term of financing receivables. + References No definition available. + Details
Name: | hpe_FinancingReceivableTermRangeMinimum
Namespace Prefix: | hpe_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of any significant sales of financing receivables during the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953423-111524 + Details
Name: | us-gaap_FinancingReceivableSignificantSales
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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