Basis of Presentation (Policies)	6 Months Ended
Basis of Presentation (Policies)	Apr. 30, 2013
Basis of Presentation
Segment Reorganization and Reclassifications	HP has made certain segment and business unit realignments in order to optimize its operating structure. Reclassifications of prior year financial information have been made to conform to the current year presentation. None of the changes impacts HP's previously reported consolidated net revenue, earnings from operations, net earnings or net earnings per share. See Note 16 for a further discussion of HP's segment reorganization.
Transfers and Servicing Trade Receivables Policy	HP has third-party financing arrangements consisting of revolving short-term financing intended to facilitate the working capital requirements of certain customers. These financing arrangements, which in certain circumstances may provide for partial recourse, result in a transfer of HP's receivables and risk to the third party. As these transfers qualify as true sales, the receivables are derecognized from the Consolidated Condensed Balance Sheets upon transfer, and HP receives a payment for the receivables from the third party within a mutually agreed upon time period. For arrangements involving an element of recourse, the recourse obligation is measured using market data from similar transactions and reported as a current liability in the Consolidated Condensed Balance Sheets.
Restructuring Policy	HP records restructuring charges associated with management-approved restructuring plans to reorganize one or more of HP's business segments, to remove duplicative headcount and infrastructure associated with one or more business acquisitions or to simplify business processes and accelerate innovation. Restructuring charges can include severance costs to eliminate a specified number of employees, infrastructure charges to vacate facilities and consolidate operations, and contract cancellation costs. Restructuring charges are recorded based upon planned employee termination dates and site closure and consolidation plans. The timing of associated cash payments is dependent upon the type of restructuring charge and can extend over a multi-year period. HP records the short-term portion of the restructuring liability in Accrued restructuring and the long-term portion in Other liabilities in the Consolidated Condensed Balance Sheets.
Fair Value Policy	HP determines fair value based on the exchange price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants. Fair Value Hierarchy Valuation techniques used by HP are based upon observable and unobservable inputs. Observable or market inputs reflect market data obtained from independent sources, while unobservable inputs reflect HP's assumptions about market participant assumptions based on the best information available. Observable inputs are the preferred basis of valuation. These two types of inputs create the following fair value hierarchy: Level 1—Quoted prices (unadjusted) for identical instruments in active markets. Level 2—Quoted prices for similar instruments in active markets, quoted prices for identical or similar instruments in markets that are not active, and model-based valuation techniques for which all significant assumptions are observable in the market or can be corroborated by observable market data for substantially the full term of the assets or liabilities. Level 3—Prices or valuations that require management inputs that are both significant to the fair value measurement and unobservable. Valuation Techniques Cash Equivalents and Investments: HP holds time deposits, money market funds, mutual funds, other debt securities primarily consisting of corporate and foreign government notes and bonds, and common stock and equivalents. Where applicable, HP uses quoted prices in active markets for identical assets to determine fair value. If quoted prices in active markets for identical assets are not available to determine fair value, HP uses quoted prices for similar assets and liabilities or inputs that are observable either directly or indirectly. If quoted prices for identical or similar assets are not available, HP uses internally developed valuation models for which inputs include bid prices, and third-party valuations utilizing underlying assets assumptions. Derivative Instruments: As discussed in Note 8, HP mainly holds non-speculative forwards, swaps and options to hedge certain foreign currency and interest rate exposures. When active market quotes are not available, HP uses industry standard valuation models. Where applicable, these models project future cash flows and discount the future amounts to a present value using market-based observable inputs including interest rate curves, credit risk, foreign exchange rates, and forward and spot prices for currencies. In certain cases, market-based observable inputs are not available and, in those cases, HP uses management judgment to develop assumptions which are used to determine fair value. Other Fair Value Disclosures Short- and Long-Term Debt: The estimated fair value of HP's debt is primarily calculated using an expected present value technique based upon observable market inputs. The portion of HP's fixed-rate debt obligations that is hedged is reflected in the Consolidated Condensed Balance Sheets as an amount equal to the debt's carrying value, which includes a fair value adjustment representing changes in the fair value of the hedged debt obligations arising from movements in benchmark interest rates.
Derivative Financial Instruments	Derivative Financial Instruments HP is a global company that is exposed to foreign currency exchange rate fluctuations and interest rate changes in the normal course of its business. As part of its risk management strategy, HP uses derivative instruments, primarily forward contracts, option contracts, interest rate swaps, and total return swaps, to hedge certain foreign currency, interest rate and, to a lesser extent, equity exposures. HP's objective is to offset gains and losses resulting from these exposures with losses and gains on the derivative contracts used to hedge them, thereby reducing volatility of earnings or protecting fair values of assets and liabilities. HP does not have any leveraged derivatives and does not use derivative contracts for speculative purposes. HP designates its derivatives as fair value hedges, cash flow hedges or hedges of the foreign currency exposure of a net investment in a foreign operation ("net investment hedges"). Additionally, for derivatives not designated as hedging instruments, HP categorizes those economic hedges as other derivatives. HP recognizes all derivatives, on a gross basis, in the Consolidated Condensed Balance Sheets at fair value. HP classifies cash flows from the derivative programs as operating activities in the Consolidated Condensed Statements of Cash Flows. As a result of the use of derivative instruments, HP is exposed to the risk that its counterparties will fail to meet their contractual obligations. To mitigate counterparty credit risk, HP has a policy of only entering into contracts with carefully selected major financial institutions based upon their credit ratings and other factors, and HP maintains dollar risk limits that correspond to each institution's credit rating and other factors. HP's established policies and procedures for mitigating credit risk include reviewing and establishing limits for credit exposure and periodically re-assessing the creditworthiness of counterparties. Master agreements with counterparties include master netting arrangements as further mitigation of credit exposure to counterparties. These arrangements permit HP to net amounts due from HP to a counterparty with amounts due to HP from the same counterparty. To further mitigate credit exposure to counterparties, HP has collateral security arrangements with substantially all of its counterparties. These arrangements require HP to post collateral or to hold collateral from counterparties when the derivative fair values exceed contractually established thresholds which are generally based on the credit ratings of HP and its counterparties. Such funds are generally transferred within two business days of the due date. Fair Value Hedges For derivative instruments that are designated and qualify as fair value hedges, HP recognizes the gain or loss on the derivative instrument, as well as the offsetting loss or gain on the hedged item, in Interest and other, net in the Consolidated Condensed Statements of Earnings in the period of change. Cash Flow Hedges HP uses a combination of forward contracts and options designated as cash flow hedges to protect against the foreign currency exchange rate risks inherent in its forecasted net revenue and, to a lesser extent, cost of sales, operating expenses, and intercompany loans denominated in currencies other than the U.S. dollar. HP's foreign currency cash flow hedges mature generally within twelve months. However, certain leasing revenue-related forward contracts and intercompany loan forward contracts extend for the duration of the lease term, which can be up to five years. For derivative instruments that are designated and qualify as cash flow hedges, HP initially records the effective portion of the gain or loss on the derivative instrument in accumulated other comprehensive income or loss as a separate component of stockholders' equity and subsequently reclassifies these amounts into earnings in the period during which the hedged transaction is recognized in earnings. HP reports the effective portion of cash flow hedges in the same financial statement line item as the changes in value of the hedged item. During the three and six months ended April 30, 2013 there was no significant impact to results of operations as a result of discontinued cash flow hedges. Net Investment Hedges HP uses forward contracts designated as net investment hedges to hedge net investments in certain foreign subsidiaries whose functional currency is the local currency. These derivative instruments are designated as net investment hedges and, as such, HP records the effective portion of the gain or loss on the derivative instrument together with changes in the hedged items in cumulative translation adjustment as a separate component of stockholders' equity. Other Derivatives Other derivatives not designated as hedging instruments consist primarily of forward contracts HP uses to hedge foreign currency balance sheet exposures. HP also uses total return swaps and, to a lesser extent, interest rate swaps, based on the equity and fixed income indices, to hedge its executive deferred compensation plan liability. For derivative instruments not designated as hedging instruments, HP recognizes changes in the fair values in earnings in the period of change. HP recognizes the gain or loss on foreign currency forward contracts used to hedge balance sheet exposures in Interest and other, net in the same period as the remeasurement gain and loss of the related foreign currency denominated assets and liabilities. HP recognizes the gain or loss on the total return swaps and interest rate swaps in Interest and other, net in the same period as the gain or loss from the change in market value of the executive deferred compensation plan liability. Hedge Effectiveness For interest rate swaps designated as fair value hedges, HP measures effectiveness by offsetting the change in fair value of the hedged debt with the change in fair value of the derivative. For foreign currency options and forward contracts designated as cash flow or net investment hedges, HP measures effectiveness by comparing the cumulative change in the hedge contract with the cumulative change in the hedged item, both of which are based on forward rates. HP recognizes any ineffective portion of the hedge, as well as amounts not included in the assessment of effectiveness, in the Consolidated Condensed Statements of Earnings.
Receivables Financing Allowance and Reserves Policy	The allowance for doubtful accounts balance is comprised of a general reserve, which is determined based on a percentage of the financing receivables balance, and a specific reserve, which is established for certain leases with identified exposures, such as customer default, bankruptcy or other events, that make it unlikely that HP will recover its investment in the lease. The general reserve percentages are maintained on a regional basis and are based on several factors, which include consideration of historical credit losses and portfolio delinquencies, trends in the overall weighted-average risk rating of the portfolio, current economic conditions and information derived from competitive benchmarking. Accounts are generally put on non-accrual status (cessation of interest accrual) when they reach 90 days past due. In certain circumstances, such as when the delinquency is deemed to be of an administrative nature, accounts may still accrue interest when they reach 90 days past due. The non-accrual status may not impact a customer's risk rating. A write-off or specific reserve is generally recorded when an account reaches 180 days past due.
Warranty Policy	HP provides for the estimated cost of product warranties at the time it recognizes revenue. HP engages in extensive product quality programs and processes, including actively monitoring and evaluating the quality of its component suppliers; however, product warranty terms offered to customers, ongoing product failure rates, material usage and service delivery costs incurred in correcting a product failure, as well as specific product class failures outside of HP's baseline experience, affect the estimated warranty obligation. If actual product failure rates, repair rates or any other post sales support costs differ from these estimates, revisions to the estimated warranty liability would be required.
Litigation and Contingencies Policy	HP is involved in lawsuits, claims, investigations and proceedings, including those identified below, consisting of intellectual property, commercial, securities, employment, employee benefits and environmental matters that arise in the ordinary course of business. HP accrues a liability when management believes that it is both probable that a liability has been incurred and the amount of loss can be reasonably estimated. HP believes it has adequate provisions for any such matters, and, as of April 30, 2013, it was not reasonably possible that an additional material loss had been incurred in an amount in excess of the amounts already recognized in HP's financial statements. HP reviews these provisions at least quarterly and adjusts these provisions to reflect the impact of negotiations, settlements, rulings, advice of legal counsel, and other information and events pertaining to a particular case. Based on its experience, HP believes that any damage amounts claimed in the specific matters discussed below are not a meaningful indicator of HP's potential liability. Litigation is inherently unpredictable. However, HP believes that it has valid defenses with respect to legal matters pending against it. Nevertheless, cash flows or results of operations could be materially affected in any particular period by the unfavorable resolution of one or more of these contingencies.
Segment Reporting Policy	HP derives the results of the business segments directly from its internal management reporting system. The accounting policies HP uses to derive business segment results are substantially the same as those the consolidated company uses. Management measures the performance of each business segment based on several metrics, including earnings from operations. Management uses these results, in part, to evaluate the performance of, and to assign resources to, each of the business segments. HP does not allocate to its business segments certain operating expenses, which it manages separately at the corporate level. These unallocated costs include restructuring charges and any associated adjustments related to restructuring actions, amortization of purchased intangible assets, stock-based compensation expense related to HP-granted employee stock options, PRUs, restricted stock awards and the employee stock purchase plan, certain acquisition-related charges and charges for purchased IPR&D, as well as certain corporate governance costs. Segment revenue includes revenues from sales to external customers and intersegment revenues that reflect transactions between the segments that are carried out at an arm's-length transfer price. Intersegment revenues primarily consist of sales of hardware and software that are sourced internally and, in the majority of the cases, are classified as operating leases within HPFS. HP's Consolidated Net Revenue is derived and reported after elimination of intersegment revenues for such arrangements in accordance with U.S. GAAP.