Balance Sheet Details - Schedule of Allowance for Doubtful Accounts Related to Accounts Receivable (Details) $ in Millions	9 Months Ended
Jul. 31, 2017 USD ($)
Allowance for Doubtful Accounts Receivable [Roll Forward]
Balance at beginning of year	$ 56
Provision for doubtful accounts	2
Deductions, net of recoveries	(12)
Balance at end of period	$ 46

Allowance For Doubtful Accounts Receivable, Addition Of Bad Debt Provision

No definition available.

Name:	hpe_AllowanceForDoubtfulAccountsReceivableAdditionOfBadDebtProvision
Namespace Prefix:	hpe_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount of deductions of receivables doubtful of collection, net of recoveries that were previously charged off.

+ References

No definition available.

+ Details

Name:	hpe_AllowanceForDoubtfulAccountsReceivableDeductionsNetOfRecoveries
Namespace Prefix:	hpe_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

A valuation allowance for trade and other receivables due to an Entity within one year (or the normal operating cycle, whichever is longer) that are expected to be uncollectible.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.4)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5074-111524

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration