Reflects the term of Bridge facility in days.

Name:	hpq_BridgeFacilityTerm
Namespace Prefix:	hpq
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

The approximate cost of the acquired entity based on an Offer agreement entered into after the balance sheet date.

+ Details

Name:	hpq_BusinessAcquisitionCostOfAcquiredEntityPurchasePriceAfterBalanceSheetDate
Namespace Prefix:	hpq
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The purchase price to be paid to acquire the entity after the balance sheet date, expressed as a per share price.

+ Details

Name:	hpq_BusinessAcquisitionCostOfAcquiredEntityPurchasePricePerShareAfterBalanceSheetDate
Namespace Prefix:	hpq
Data Type:	us-types:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

Represents the minimum percentage of ownership interest offered by holders, for which acceptance by reporting entity is required in the business acquisition.

+ Details

Name:	hpq_BusinessAcquisitionPreacquisitionContingencyMinimumPercentageOfOwnershipOfferRequiredToBeAccepted
Namespace Prefix:	hpq
Data Type:	us-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The minimum amount in cash reserves available to fund the acquisition for a specified period expected to extend until the completion of the acquisition.

+ Details

Name:	hpq_CashReserveMinimum
Namespace Prefix:	hpq
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

This element represents the amount of the total expected costs and adjustments for Web OS Business.

+ Details

Name:	hpq_ExpectedCostAndAdjustmentsWebOsBusiness
Namespace Prefix:	hpq
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Represents the maximum expected period to implement any separation or other strategic plan.

+ Details

Name:	hpq_ExpectedPeriodToImplementRestructuringActivityMaximum
Namespace Prefix:	hpq
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the minimum expected period to implement any separation or other strategic plan.

+ Details

Name:	hpq_ExpectedPeriodToImplementRestructuringActivityMinimum
Namespace Prefix:	hpq
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

The estimated expense on foreign currency exchange options in connection with the acquisition.

+ Details

Name:	hpq_ForeignCurrencyExchangeOptionExpense
Namespace Prefix:	hpq
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Represents the carrying amounts of goodwill and other intangible assets, as of the balance sheet date.

+ Details

Name:	hpq_GoodwillAndOtherIntangibleAssets
Namespace Prefix:	hpq
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Short-Term financing which is expected to be paid back relatively quickly, such as by a subsequent longer-term loan. Also called swing loan or bridge financing.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 03
-Paragraph 16
-Article 7

+ Details

Name:	us-gaap_BridgeLoan
Namespace Prefix:	us-gaap
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- 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.

+ Details

Name:	us-gaap_SubsequentEventLineItems
Namespace Prefix:	us-gaap
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Subsequent Events (Details)	1 Months Ended					1 Months Ended
Subsequent Events (Details)	Aug. 31, 2011 Subsequent Acquisition Autonomy Corporation Plc USD ($)	Aug. 31, 2011 Subsequent Acquisition Autonomy Corporation Plc GBP (£)	Aug. 31, 2011 Personal Systems Group Restructuring activity	Aug. 31, 2011 Bridge Facility USD ($)	Aug. 31, 2011 Bridge Facility GBP (£)	Aug. 31, 2011 The acquistion of Palm USD ($)	Jul. 31, 2011 The acquistion of Palm USD ($)
Subsequent Events
Cash offered for acquisition of the entire issued and to be issued share capital (in pounds per share)		£ 25.50
Approximately value of acquired entity	$ 11,000,000,000
Minimum percentage of Autonomy share capital offered by holders, which acceptance is required in acquisition (as a percent)	75.00%	75.00%
Minimum cash reserves available to fund acquisition	4,250,000,000
Cost of purchase of foreign exchange options in connection with the acquisition	333,000,000
Minimum expected period to implement any separation or other strategic plan (in months)			12
Maximum expected period to implement any separation or other strategic plan (in months)			18
Restructuring and related shutdown costs						1,000,000,000
Carrying value of goodwill and other intangible assets							1,200,000,000
Unsecured loan agreement				$ 8,200,000,000	£ 5,000,000,000
Term of Bridge Facility (in days)				364	364