Name:	hpq_AdditionalDepositAgainstPartsRelatedShowCauseNotice
Namespace Prefix:	hpq_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

The amount of additional deposit made with the Customs Tribunal in connection with the product order.

No definition available.

Name:	hpq_AdditionalDepositAgainstProductOrder
Namespace Prefix:	hpq_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

The amount of additional deposit made with the Commissioner of Customs in connection with the products-related show cause notice.

No definition available.

Name:	hpq_AdditionalDepositAgainstProductsRelatedShowCauseNotice
Namespace Prefix:	hpq_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Represents amount deposited under the products and parts show cause notices.

No definition available.

Name:	hpq_AmountDepositedUnderProductsShowCauseNotice
Namespace Prefix:	hpq_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

The aggregate amount of duties and penalties that the Commissioner of Customs is seeking to have HP India and the other named individuals pay under the products and parts show cause notices.

No definition available.

Name:	hpq_DutiesPenaltiesAffirmedUnderShowCauseNotices
Namespace Prefix:	hpq_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

The amount deposited by the entity to prevent interruption of business.

No definition available.

Name:	hpq_LossContingencyDepositToPreventInterruptionOfBusiness
Namespace Prefix:	hpq_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Loss Contingency, Expected Trial Period

No definition available.

Name:	hpq_LossContingencyExpectedTrialPeriod
Namespace Prefix:	hpq_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

Loss Contingency, Minimum Age of Plaintiff

No definition available.

Name:	hpq_LossContingencyMinimumAgeofPlaintiff
Namespace Prefix:	hpq_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

Loss Contingency, Number of Class Actions

No definition available.

Name:	hpq_LossContingencyNumberofClassActions
Namespace Prefix:	hpq_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

Loss Contingency, Number of Defendants, Current Employee

No definition available.

Name:	hpq_LossContingencyNumberofDefendantsCurrentEmployee
Namespace Prefix:	hpq_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

Loss Contingency, Number of Defendants, Former Employee

No definition available.

Name:	hpq_LossContingencyNumberofDefendantsFormerEmployee
Namespace Prefix:	hpq_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

Loss Contingency, Number of Plaintiffs, Named

No definition available.

Name:	hpq_LossContingencyNumberofPlaintiffsNamed
Namespace Prefix:	hpq_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

Loss Contingency, Number of Plaintiffs, Opt-in

No definition available.

Name:	hpq_LossContingencyNumberofPlaintiffsOptin
Namespace Prefix:	hpq_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

Represents number of members.

No definition available.

Name:	hpq_NumberOfMembers
Namespace Prefix:	hpq_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

Represents the number of subsidiaries.

No definition available.

Name:	hpq_NumberOfSubsidiaries
Namespace Prefix:	hpq_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

Amount related to transaction of former subsidiary under investigation.

No definition available.

Name:	hpq_TransactionOfFormerSubsidiaryUnderInvestigation
Namespace Prefix:	hpq_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Amount of gain (loss) recognized in settlement of litigation and insurance claims. Excludes claims within an insurance entity's normal claims settlement process.

Name:	us-gaap_GainLossRelatedToLitigationSettlement
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

Amount awarded from other party in judgment or settlement of litigation.

No definition available.

Name:	us-gaap_LitigationSettlementAmountAwardedFromOtherParty
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

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.

No definition available.

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

Number of claims dismissed.

No definition available.

Name:	us-gaap_LossContingencyClaimsDismissedNumber
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

The value (monetary amount) of the award the plaintiff seeks in the legal matter.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=82911808&loc=d3e14326-108349

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 9
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=82911808&loc=d3e14557-108349

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=82911808&loc=d3e14435-108349

Name:	us-gaap_LossContingencyDamagesSoughtValue
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Number of defendants named in a legal action.

No definition available.

Name:	us-gaap_LossContingencyNumberOfDefendants
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

Number of plaintiffs that have filed claims pertaining to a loss contingency.

No definition available.

Name:	us-gaap_LossContingencyNumberOfPlaintiffs
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

Name:	us-gaap_LossContingenciesByNatureOfContingencyAxis=hpq_Forsythetal.vs.HPInc.andHewlettPackardEnterpriseMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_LossContingenciesByNatureOfContingencyAxis=hpq_IndiaDirectorateOfRevenueIntelligenceProceedingsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_LossContingenciesByNatureOfContingencyAxis=hpq_BangaloreCommissionerOfCustomsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_LossContingenciesByNatureOfContingencyAxis=hpq_RussiaGPOInvestigationsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_LossContingenciesByNatureOfContingencyAxis=hpq_ConsumerClassActionSuppliesAuthenticationProtocolMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_LossContingenciesByNatureOfContingencyAxis=hpq_AutonomyRelatedLegalMattersMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_BusinessAcquisitionAxis=hpq_AcquisitionOfAutonomyMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_CounterpartyNameAxis=hpq_MessrsLynchMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_LitigationCaseAxis=hpq_OracleCorporationv.HPMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_GainContingenciesByNatureAxis=hpq_DamagesAwardedPastLostProfitsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: