| **Significant Accounting Policies - (Notes)** | 12 Months Ended                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        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| **Accounting Policies [Abstract]**            |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        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| Summary of significant accounting policies    | SUMMARY OF SIGNIFICANT ACCOUNTING POLICIESNature of OperationsBaker Hughes Incorporated (“Baker Hughes,” “Company,” “we,” “our,” or “us,”) is a leading supplier of oilfield services, products, technology and systems used for drilling, formation evaluation, completion and production, pressure pumping, and reservoir development in the worldwide oil and natural gas industry.  We also provide products and services for other businesses, including downstream chemicals, and process and pipeline industries.Basis of PresentationThe consolidated financial statements include the accounts of Baker Hughes and all of our subsidiaries where we exercise control.  For investments in subsidiaries that are not wholly-owned, but where we exercise control, the equity held by the minority owners and their portions of net income (loss) are reflected as noncontrolling interests.  Investments over which we have the ability to exercise significant influence over operating and financial policies, but do not hold a controlling interest, are accounted for using the equity method of accounting.  All significant intercompany accounts and transactions have been eliminated in consolidation.  In the Notes to Consolidated Financial Statements, all dollar and share amounts in tabulations are in millions of dollars and shares, respectively, unless otherwise indicated.Use of EstimatesThe preparation of financial statements in conformity with accounting principles generally accepted in the United States of America (“U.S.”) requires management to make estimates and judgments that affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenue and expenses during the reporting period.  We base our estimates and judgments on historical experience and on various other assumptions and information that are believed to be reasonable under the circumstances.  Estimates and assumptions about future events and their effects cannot be perceived with certainty, and accordingly, these estimates may change as new events occur, as more experience is acquired, as additional information is obtained and as our operating environment changes.  While we believe that the estimates and assumptions used in the preparation of the consolidated financial statements are appropriate, actual results could differ from those estimates.  Estimates are used for, but are not limited to, determining the following: allowance for doubtful accounts and inventory valuation reserves; recoverability of long-lived assets; useful lives used in depreciation and amortization; income taxes and related valuation allowances; accruals for contingencies and actuarial assumptions to determine costs and liabilities related to employee benefit plans; stock-based compensation and fair value of assets acquired and liabilities assumed in acquisitions.Revenue RecognitionOur products and services are sold based upon purchase orders, contracts or other agreements with the customer that include fixed or determinable prices and that do not include right of return or other similar provisions or other significant post-delivery obligations.  Our products are produced in a standard manufacturing operation, even if produced to our customer’s specifications.  We recognize revenue for these products upon delivery, when title passes, when collectability is reasonably assured and there are no further significant obligations for future performance.  Provisions for estimated warranty returns or similar types of items are made at the time the related revenue is recognized.  Revenue for services is recognized as the services are rendered and when collectability is reasonably assured.  Rates for services are typically priced on a per day, per meter, per man hour or similar basis.  In certain situations, revenue is generated from transactions that may include multiple products and services under one contract or agreement and which may be delivered to the customer over an extended period of time.  Revenue from these arrangements is recognized in accordance with the above criteria and as each item or service is delivered based on their relative fair value.Research and EngineeringResearch and engineering expenses are expensed as incurred and include costs associated with the research and development of new products and services and costs associated with sustaining engineering of existing products and services.  Costs for research and development of new products and services were $370 million, $337 million and $324 million for the years ended December 31, 2013, 2012 and 2011, respectively.Cash, Cash Equivalents and Short-term InvestmentsCash equivalents include only those investments with an original maturity of three months or less.  Short-term investments have an original maturity of greater than three months but less than one year.  We maintain cash deposits with financial institutions that may exceed federally insured limits.  We monitor the credit ratings and our concentration of risk with these financial institutions on a continuing basis to safeguard our cash deposits.Allowance for Doubtful AccountsWe establish an allowance for doubtful accounts based on various factors including historical experience, current aging status of the customer accounts, and the payment history and financial condition of our customers.  Provisions for doubtful accounts are recorded when it becomes evident that the customer will not make the required payments at either contractual due dates or in the future.  Provision for doubtful accounts recorded in cost of sales was $75 million, $100 million and $84 million for the years ended December 31, 2013, 2012 and 2011, respectively.Concentration of Credit RiskWe grant credit to our customers, which operate primarily in the oil and natural gas industry.  Although this concentration could affect our overall exposure to credit risk, we believe that our risk is minimized because the majority of our business is conducted with major companies many of which are geographically diverse, thus spreading the credit risk.  To manage this risk, we perform periodic credit evaluations of our customers’ financial condition, including monitoring our customers’ payment history and current credit worthiness.  We do not generally require collateral in support of our trade receivables, but we may require payment in advance or security in the form of a letter of credit or bank guarantee.  During 2013, 2012 and 2011, no individual customer accounted for more than 10% of our consolidated revenue.InventoriesInventories are stated at the lower of cost or market.  Cost is determined using the first-in, first-out (“FIFO”) method or the average cost method, which approximates FIFO, and includes the cost of materials, labor and manufacturing overhead.  As necessary, we record provisions and maintain reserves for excess, slow moving and obsolete inventory.  To determine these reserve amounts, we regularly review inventory quantities on hand and compare them to estimates of future product demand, market conditions, production requirements and technological developments.Property, Plant and Equipment and Accumulated DepreciationProperty, plant and equipment (“PP&E”) is stated at cost less accumulated depreciation, which is generally provided by using the straight-line method over the estimated useful lives of the individual assets.  Significant improvements and betterments are capitalized if they extend the useful life of the asset.  We manufacture a substantial portion of our tools and equipment and the cost of these items, which includes direct and indirect manufacturing costs, is capitalized and carried in inventory until it is completed.  When complete, the cost is reflected in capital expenditures and is classified as machinery, equipment and other in PP&E.  Maintenance and repairs are charged to expense as incurred.  Upon sale or other disposition, the applicable amounts of asset cost and accumulated depreciation are removed from the balance sheet and the net amount, less proceeds from disposal, is charged or credited to income.  The capitalized costs of computer software developed or purchased for internal use are classified in machinery, equipment and other.Goodwill, Intangible Assets and AmortizationGoodwill is the excess of the consideration transferred over the fair value of the tangible and identifiable intangible assets and liabilities recognized.  Goodwill and intangible assets with indefinite lives are not amortized.  Intangible assets with finite useful lives are amortized on a basis that reflects the pattern in which the economic benefits of the intangible assets are realized, which is generally on a straight-line basis over the asset’s estimated useful life.Impairment of PP&E, Intangibles, Other Long-lived Assets and GoodwillWe review PP&E, intangible assets and certain other long-lived assets for impairment whenever events or changes in circumstances indicate that the carrying amount may not be recoverable and at least annually for certain intangible assets.  The determination of recoverability is made based upon the estimated undiscounted future net cash flows.  The amount of impairment loss, if any, is determined by comparing the fair value, as determined by a discounted cash flow analysis, with the carrying value of the related assets.We perform an annual impairment test of goodwill for each of our reporting units as of October 1, or more frequently if circumstances indicate that an impairment may exist.  Our reporting units are based on our organizational and reporting structure.  Corporate and other assets and liabilities are allocated to the reporting units to the extent that they relate to the operations of those reporting units in determining their carrying amount.  The determination of impairment is made by comparing the carrying amount of each reporting unit with its fair value, which is generally calculated using a combination of market, comparable transaction and discounted cash flow approaches.Income TaxesWe use the liability method in determining our provision and liabilities for our income taxes, under which current and deferred tax liabilities and assets are recorded in accordance with enacted tax laws and rates.  Deferred tax liabilities and assets, which are computed on the estimated income tax effect of temporary differences between financial and tax bases in assets and liabilities, are determined using the tax rate expected to be in effect when taxes are actually paid or recovered.  A valuation allowance to reduce deferred tax assets is established when it is more likely than not that some portion or all of the deferred tax assets will not be realized.We intend to indefinitely reinvest certain earnings of our foreign subsidiaries in operations outside the U.S., and accordingly, we have not provided for U.S. income taxes on such earnings.  We do provide for the U.S. and additional non-U.S. taxes on earnings anticipated to be repatriated from our non-U.S. subsidiaries.Our tax filings for various periods are subject to audit by tax authorities in most jurisdictions where we conduct business.  These audits may result in assessments of additional taxes that are resolved with the authorities or through the courts.  We have provided for the amounts we believe will ultimately result from these proceedings.  In addition to the assessments that have been received from various tax authorities, we also provide for taxes for uncertain tax positions where formal assessments have not been received.  We classify interest and penalties related to uncertain tax positions as income taxes in our financial statements.Environmental MattersEstimated remediation costs are accrued using currently available facts, existing environmental permits, technology and enacted laws and regulations.  For sites where we are primarily responsible for the remediation, our cost estimates are developed based on internal evaluations and are not discounted.  Accruals are recorded when it is probable that we will be obligated to pay for environmental site evaluation, remediation or related activities, and such costs can be reasonably estimated.  As additional information becomes available, accruals are adjusted to reflect current cost estimates.  Ongoing environmental compliance costs, such as obtaining environmental permits, installation of pollution control equipment and waste disposal are expensed as incurred.  Where we have been identified as a potentially responsible party in a U.S. federal or state Comprehensive Environmental Response, Compensation and Liability Act (“Superfund”) site, we accrue our share of the estimated remediation costs of the site.  This share is based on the ratio of the estimated volume of waste we contributed to the site to the total volume of waste disposed at the site.Foreign CurrencyA number of our significant foreign subsidiaries have designated the local currency as their functional currency and, as such, gains and losses resulting from balance sheet translation of foreign operations are included as a separate component of accumulated other comprehensive loss within stockholders’ equity.  Gains and losses from foreign currency transactions, such as those resulting from the settlement of receivables or payables in the non-functional currency, are included in marketing, general and administrative (“MG&A”) expenses in the consolidated statements of income as incurred.  For those foreign subsidiaries that have designated the U.S. Dollar as the functional currency, monetary assets and liabilities are remeasured at period-end exchange rates, and nonmonetary items are remeasured at historical exchange rates.  Gains and losses resulting from this balance sheet remeasurement are also included in MG&A expenses in the consolidated statements of income as incurred.In February 2013, Venezuela's currency was devalued from the prior exchange rate of 4.3 Bolivars Fuertes per U.S. Dollar to 6.3 Bolivars Fuertes per U.S. Dollar, which applies to our local currency denominated balances.  The impact of this devaluation was a loss of $23 million that was recorded in marketing, general and administrative expense in the first quarter of 2013.Financial InstrumentsOur financial instruments include cash and cash equivalents, accounts receivable, accounts payable, debt, and derivative financial instruments.  Except for debt, the estimated fair value of our financial instruments at December 31, 2013 and 2012 approximates their carrying value as reflected in our consolidated balance sheets.  For further information on the fair value of our debt, see Note 8. Indebtedness.We monitor our exposure to various business risks including commodity prices, foreign currency exchange rates and interest rates and regularly use derivative financial instruments to manage these risks.  Our policies do not permit the use of derivative financial instruments for speculative purposes.  At the inception of a new derivative, we designate the derivative as a hedge or we determine the derivative to be undesignated as a hedging instrument as the facts dictate.  We document the relationships between the hedging instruments and the hedged items, as well as our risk management objectives and strategy for undertaking various hedge transactions.  We assess whether the derivatives that are used in hedging transactions are highly effective in offsetting changes in cash flows of the hedged item at both the inception of the hedge and on an ongoing basis.We have a program that primarily utilizes foreign currency forward contracts to reduce the risks associated with the effects of certain foreign currency exposures.  Under this program, our strategy is to have gains or losses on the foreign currency forward contracts mitigate the foreign currency transaction and translation gains or losses to the extent practical.  These foreign currency exposures typically arise from changes in the value of assets and liabilities which are denominated in currencies other than the functional currency.  Our foreign currency forward contracts generally settle in less than 180 days.  We record all derivatives as of the end of our reporting period in our consolidated balance sheet at fair value.  For those forward contracts designated as fair value hedging instruments or held as undesignated hedging instruments, we record changes in fair value in our consolidated statements of income along with the change in fair value of the hedged item.  Changes in the fair value of forward contracts designated as cash flow hedging instruments are recognized in other comprehensive income until the hedged item is recognized in earnings.  For derivatives designated as a cash flow hedge, the ineffective portion of that derivative's change in fair value is recognized in earnings.  Recognized gains and losses on derivatives entered into to manage foreign currency exchange risk are included in MG&A expenses in the consolidated statements of income.We had outstanding foreign currency forward contracts with notional amounts aggregating $486 million and $207 million to hedge exposure to currency fluctuations in various foreign currencies at December 31, 2013 and 2012, respectively.  These contracts are either undesignated hedging instruments or designated and qualify as fair value hedging instruments.  The fair value was determined using quoted market prices for contracts with similar terms and maturity dates and was not material at either December 31, 2013 or 2012.  The effects of our derivative instruments in our consolidated statements of income were not material in each of the three years ended December 31, 2013.New Accounting Standards UpdatesIn February 2013, the FASB issued ASU No. 2013-02, Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income.  This ASU requires entities to present separately, among other items, the amount of the change that is due to reclassifications, and the amount that is due to current period other comprehensive income.  We adopted the new presentation requirements in the notes to our financial statements in the first quarter of 2013.  For additional information see Note 12. Accumulated Other Comprehensive Loss.In July 2012, the FASB issued an update to ASC 350, Intangibles - Goodwill and Other.  This ASU amends the guidance in ASC 350-30 on testing indefinite-lived intangible assets for impairment.  The revised guidance permits an entity first to assess qualitative factors to determine whether it is more likely than not that an indefinite-lived intangible asset is impaired as a basis for determining whether it is necessary to perform the quantitative impairment test.  The ASU is effective for impairment tests performed for fiscal years beginning after September 15, 2012.  We adopted this ASU for our 2013 impairment testing and it did not have a material impact on our consolidated financial statements. |

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The entire disclosure for all significant accounting policies of the reporting entity.
+ References
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