This element represents the amount of the total expected costs and adjustments.

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Period Type:	duration

- Definition

The expected number of positions to be eliminated as a result of restructuring activities.

+ Details

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- Definition

The period over which the restructuring plan is expected to be implemented (in years).

+ Details

Name:	hpq_RestructuringAndRelatedCostImplementationPeriod
Namespace Prefix:	hpq
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- Definition

The number of positions eliminated as of the balance sheet date since inception of the restructuring plan(s).

+ Details

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Period Type:	instant

- Definition

Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.

+ Details

Name:	hpq_RestructuringReserveIncludingReserveForNewlyAcquiredBusiness
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Data Type:	xbrli:monetaryItemType
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Period Type:	instant

- Definition

The amount of any reversal and other adjustment made during the period to the amount of a previously accrued liability for a restructuring cost, and the amount of consideration other than cash paid in the period to fully or partially settle a previously accrued cost.

+ Details

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- Definition

Carrying amount as of the balance sheet date of known and estimated costs associated with exit from or disposal of business activities or restructurings pursuant to a duly authorized plan, which are expected to be paid after one year or beyond the next operating cycle, if longer. Costs of such activities include those for one-time termination benefits, termination of an operating lease or other contract, consolidating or closing facilities, and relocating employees, and costs associated with an ongoing benefit arrangement, but excludes costs associated with the retirement of a long-lived asset.

+ Details

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- Definition

Amount of the acquisition costs expected to be expended for restructuring activities for the acquired entity. Exit activities of the acquired entity may include involuntary termination benefits to be paid to acquired entity employees, and relocation costs for employees of acquired entity.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Emerging Issues Task Force (EITF)
-Number 95-3
-Paragraph 1
-Subparagraph b

+ Details

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- Definition

Amount of costs incurred to date for the specified type of restructuring cost.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 146
-Paragraph 20

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Emerging Issues Task Force (EITF)
-Number 95-3

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Staff Accounting Bulletin (SAB)
-Number Topic 5
-Section P
-Subsection 3, 4

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- 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

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- Definition

Reserve increase representing the amount charged against earnings in the period for a specified incurred and estimated type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 146

+ Details

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- Definition

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

+ Details

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- Definition

Amount of cash paid in the period to fully or partially settle a specified, previously accrued type of restructuring cost.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Emerging Issues Task Force (EITF)
-Number 95-3

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Staff Accounting Bulletin (SAB)
-Number Topic 5
-Section P
-Subsection 3, 4

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 146

+ Details

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Restructuring Charges (Details) (USD $)	3 Months Ended	6 Months Ended		3 Months Ended	6 Months Ended	3 Months Ended	6 Months Ended	3 Months Ended	6 Months Ended	3 Months Ended	6 Months Ended			1 Months Ended	3 Months Ended	6 Months Ended	3 Months Ended	6 Months Ended	3 Months Ended	6 Months Ended
Restructuring Charges (Details) (USD $)	Apr. 30, 2011	Apr. 30, 2011	Oct. 31, 2010	Apr. 30, 2011 Fiscal 2010 Acquisitions	Apr. 30, 2011 Fiscal 2010 Acquisitions	Apr. 30, 2011 Fiscal 2010 ES Restructuring Plan	Apr. 30, 2011 Fiscal 2010 ES Restructuring Plan	Apr. 30, 2011 Fiscal 2010 ES Restructuring Plan Severance	Apr. 30, 2011 Fiscal 2010 ES Restructuring Plan Severance	Apr. 30, 2011 Fiscal 2010 ES Restructuring Plan Infrastructure	Apr. 30, 2011 Fiscal 2010 ES Restructuring Plan Infrastructure	Apr. 30, 2011 Fiscal 2009 Restructuring Plan	Apr. 30, 2011 Fiscal 2009 Restructuring Plan Severance	Aug. 26, 2008 Fiscal 2008 HP/EDS Restructuring Plan	Apr. 30, 2011 Fiscal 2008 HP/EDS Restructuring Plan	Apr. 30, 2011 Fiscal 2008 HP/EDS Restructuring Plan	Apr. 30, 2011 Fiscal 2008 HP/EDS Restructuring Plan Severance	Apr. 30, 2011 Fiscal 2008 HP/EDS Restructuring Plan Severance	Apr. 30, 2011 Fiscal 2008 HP/EDS Restructuring Plan Infrastructure	Apr. 30, 2011 Fiscal 2008 HP/EDS Restructuring Plan Infrastructure
Restructuring and related costs
Expected positions to be eliminated (in number of positions)									9,000				4,400					25,000
Positions eliminated (in number of positions)								4,400	4,400
Implementation period (in years)														4
Costs reflected in purchase price of EDS															$ 1,500,000,000	$ 1,500,000,000
Restructuring Reserve
Balance at the beginning of the period		1,208,000,000			44,000,000		624,000,000		620,000,000		4,000,000	57,000,000				483,000,000		75,000,000		408,000,000
Charges	158,000,000	316,000,000		16,000,000	16,000,000	63,000,000	160,000,000	33,000,000	118,000,000	30,000,000	42,000,000				79,000,000	140,000,000	9,000,000	23,000,000	70,000,000	117,000,000
Cash payments		(504,000,000)			(23,000,000)		(177,000,000)		(135,000,000)		(42,000,000)	(43,000,000)				(261,000,000)		(87,000,000)		(174,000,000)
Non-cash settlements and other adjustments		36,000,000					34,000,000		38,000,000		(4,000,000)	(1,000,000)				3,000,000		(11,000,000)		14,000,000
Balance at the end of the period	1,056,000,000	1,056,000,000		37,000,000	37,000,000	641,000,000	641,000,000	641,000,000	641,000,000			13,000,000			365,000,000	365,000,000			365,000,000	365,000,000
Total costs and adjustments to date		4,161,000,000			80,000,000		810,000,000		748,000,000		62,000,000	292,000,000				2,979,000,000		2,169,000,000		810,000,000
Total expected combined costs and adjustments		4,766,000,000			88,000,000		992,000,000		761,000,000		231,000,000	292,000,000				3,394,000,000		2,169,000,000		1,225,000,000
Long-term portion of restructuring reserve, recorded in Other liabilities	$ 175,000,000	$ 175,000,000	$ 297,000,000