Entity Central Index Key Includes operating interest income earned as part of a core business activity, equity income representing the undistributed income or loss of investments which are accounted for under the equity method of accounting, and other miscellaneous income or loss earned from core business activities. Restructuring and other charges. Document and entity information. Document And Entity Information [Abstract] Document Type Document Type Amendment Flag Amendment Flag Document Period End Date Document Period End Date Document Fiscal Year Focus Document Fiscal Year Focus Document Fiscal Period Focus Document Fiscal Period Focus Trading Symbol Trading Symbol Entity Registrant Name Entity Registrant Name Entity Central Index Key Current Fiscal Year End Date Current Fiscal Year End Date Entity Filer Category Entity Filer Category Entity Common Stock, Shares Outstanding Entity Common Stock Shares Outstanding Income Statement [Abstract] Revenue Revenues Interest & other income Interest Income And Other Expenses Costs And Expenses [Abstract] Cost of revenue Cost Of Goods And Services Sold Research & engineering Research And Development Expense General & administrative General And Administrative Expense Restructuring & other Restructuring And Other Charges Interest Interest Expense Income before taxes Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest Taxes on income Income Tax Expense Benefit Net income Profit Loss Net income attributable to noncontrolling interests Net Income Loss Attributable To Noncontrolling Interest Net income attributable to Schlumberger Net Income Loss Basic earnings per share of Schlumberger Earnings Per Share Basic Diluted earnings per share of Schlumberger Earnings Per Share Diluted Average shares outstanding: Weighted Average Number Of Shares Outstanding [Abstract] Basic Weighted Average Number Of Shares Outstanding Basic Assuming dilution Weighted Average Number Of Diluted Shares Outstanding Actuarial loss. Statement Of Income And Comprehensive Income [Abstract] Net income Currency translation adjustments Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Period Increase Decrease [Abstract] Unrealized net change arising during the period Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax Marketable securities Other Comprehensive Income Available For Sale Securities Adjustment Net Of Tax Period Increase Decrease [Abstract] Unrealized gain (loss) arising during the period Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax Cash flow hedges Other Comprehensive Income Derivatives Qualifying As Hedges Net Of Tax Period Increase Decrease [Abstract] Net loss on cash flow hedges Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax Reclassification to net income of net realized loss Other Comprehensive Income Loss Reclassification Adjustment From A O C I On Derivatives Net Of Tax Pension and other postretirement benefit plans Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Period Increase Decrease [Abstract] Actuarial loss Actuarial Loss [Abstract] Amortization to net income of net actuarial loss Other Comprehensive Income Loss Reclassification Adjustment From A O C I Pension And Other Postretirement Benefit Plans For Net Gain Loss Before Tax Prior service cost Other Comprehensive Income Loss Reclassification Adjustment From A O C I Pension And Other Postretirement Benefit Plans Net Of Tax [Abstract] Amortization to net income of net prior service cost Other Comprehensive Income Loss Amortization Adjustment From A O C I Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Before Tax Income taxes on pension and other postretirement benefit plans Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax Comprehensive income Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest Comprehensive income attributable to noncontrolling interests Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest Comprehensive income attributable to Schlumberger Comprehensive Income Net Of Tax Capitalized costs directly incurred in acquiring and processing of seismic surveys that are licensed on a nonexclusive basis, net of amortization. Statement Of Financial Position [Abstract] ASSETS Assets [Abstract] Current Assets Assets Current [Abstract] Cash Cash Short-term investments Short Term Investments Receivables less allowance for doubtful accounts (2016 - $333; 2015 - $333) Receivables Net Current Inventories Inventory Net Deferred taxes Deferred Tax Assets Net Current Other current assets Other Assets Current Current assets total Assets Current Fixed Income Investments, held to maturity Held To Maturity Securities Noncurrent Investments in Affiliated Companies Investments In Affiliates Subsidiaries Associates And Joint Ventures Fixed Assets less accumulated depreciation Property Plant And Equipment Net Multiclient Seismic Data Multiclient Seismic Data Goodwill Goodwill Intangible Assets Finite Lived Intangible Assets Net Other Assets Other Assets Noncurrent Total Assets Assets LIABILITIES AND EQUITY Liabilities And Stockholders Equity [Abstract] Current Liabilities Liabilities Current [Abstract] Accounts payable and accrued liabilities Accounts Payable And Accrued Liabilities Current Estimated liability for taxes on income Accrued Income Taxes Current Long-term debt - current portion Long Term Debt Current Short-term borrowings Short Term Borrowings Dividends payable Dividends Payable Current Current Liabilities Total Liabilities Current Long-term Debt Long Term Debt Noncurrent Postretirement Benefits Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent Deferred Taxes Deferred Tax Liabilities Noncurrent Other Liabilities Other Liabilities Noncurrent Total Liabilities Liabilities Equity Stockholders Equity Including Portion Attributable To Noncontrolling Interest [Abstract] Common stock Common Stock Value Treasury stock Treasury Stock Value Retained earnings Retained Earnings Accumulated Deficit Accumulated other comprehensive loss Accumulated Other Comprehensive Income Loss Net Of Tax Schlumberger stockholders' equity Stockholders Equity Noncontrolling interests Minority Interest Total equity Stockholders Equity Including Portion Attributable To Noncontrolling Interest Liabilities and stockholders equity Liabilities And Stockholders Equity Allowance for doubtful accounts on receivable Allowance For Doubtful Accounts Receivable Current The net cash outflow from capitalized costs directly incurred in acquiring and processing of seismic surveys that are licensed on a nonexclusive basis. Statement Of Cash Flows [Abstract] Cash flows from operating activities: Net Cash Provided By Used In Operating Activities [Abstract] Adjustments to reconcile net income to cash provided by operating activities: Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities [Abstract] Restructuring and other charges Depreciation and amortization Depreciation Depletion And Amortization Pension and other postretirement benefits expense Pension And Other Postretirement Benefit Expense Stock-based compensation expense Share Based Compensation Pension and other postretirement benefits funding Pension And Other Postretirement Benefit Contributions Earnings of equity method investments, less dividends received Income Loss From Equity Method Investments Net Of Dividends Or Distributions Change in assets and liabilities: Increase Decrease In Operating Capital [Abstract] Decrease in receivables Increase Decrease In Receivables Decrease (increase) in inventories Increase Decrease In Inventories Decrease (increase) in other current assets Increase Decrease In Other Current Assets Decrease (increase) in other assets Increase Decrease In Other Noncurrent Assets Decrease in accounts payable and accrued liabilities Increase Decrease In Accounts Payable And Accrued Liabilities Decrease in estimated liability for taxes on income Increase Decrease In Accrued Income Taxes Payable Increase (decrease) in other liabilities Increase Decrease In Other Operating Liabilities Other Increase Decrease In Other Operating Capital Net NET CASH PROVIDED BY OPERATING ACTIVITIES Net Cash Provided By Used In Operating Activities Continuing Operations Cash flows from investing activities: Net Cash Provided By Used In Investing Activities [Abstract] Capital expenditures Payments To Acquire Property Plant And Equipment SPM investments Payments To Acquire Investments Multiclient seismic data capitalized Payments For Proceeds From Capitalized Costs Support Equipment And Facilities Business acquisitions and investments, net of cash acquired Payments To Acquire Businesses And Interest In Affiliates Purchase of investments, net Payments For Proceeds From Investments Other Payments For Proceeds From Other Investing Activities NET CASH USED IN INVESTING ACTIVITIES Net Cash Provided By Used In Investing Activities Continuing Operations Cash flows from financing activities: Net Cash Provided By Used In Financing Activities [Abstract] Dividends paid Payments Of Dividends Proceeds from employee stock purchase plan Proceeds From Stock Plans Proceeds from exercise of stock options Proceeds From Stock Options Exercised Stock repurchase program Payments For Repurchase Of Equity Proceeds from issuance of long-term debt Proceeds From Issuance Of Long Term Debt Repayment of long-term debt Repayments Of Long Term Debt Net decrease in short-term borrowings Proceeds From Repayments Of Short Term Debt Other Proceeds From Payments For Other Financing Activities NET CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES Net Cash Provided By Used In Financing Activities Continuing Operations Net decrease in cash before translation effect Cash Period Increase Decrease Excluding Exchange Rate Effect Translation effect on cash Effect Of Exchange Rate On Cash Cash, beginning of period Cash, end of period Number of share options exercised during the current period less shares exchanged. Statement Of Stockholders Equity [Abstract] Statement [Table] Statement [Table] Equity Components Statement Equity Components [Axis] Equity Component Equity Component [Domain] Common Stock Issued Common Stock [Member] Common Stock In Treasury Treasury Stock [Member] Retained Earnings Retained Earnings [Member] Accumulated Other Comprehensive Loss Accumulated Other Comprehensive Income [Member] Noncontrolling Interests Noncontrolling Interest [Member] Statement [Line Items] Statement [Line Items] Balance Balance, shares Shares Outstanding Currency translation adjustments Changes in unrealized gain on marketable securities Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax Changes in fair value of cash flow hedges Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax Pension and other postretirement benefit plans Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax Shares sold to optionees, less shares exchanged Stock Issued During Period Value Stock Options Exercised Shares sold to optionees, less shares exchanged, shares Stock Issued During Period Shares Stock Options Exercised Less Shares Exchanged Vesting of restricted stock Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures Vesting of restricted stock, shares Stock Issued During Period Shares Restricted Stock Award Net Of Forfeitures Shares issued under employee stock purchase plan Stock Issued During Period Value Employee Stock Purchase Plan Shares issued under employee stock purchase plan, shares Stock Issued During Period Shares Employee Stock Purchase Plans Stock repurchase program Treasury Stock Value Acquired Cost Method Stock repurchase program, shares Treasury Stock Shares Acquired Stock-based compensation expense Stock Issued During Period Value Share Based Compensation Dividends declared Dividends Cash Other Stockholders Equity Other Balance Balance, shares Dividends declared, per share Common Stock Dividends Per Share Declared Organization Consolidation And Presentation Of Financial Statements [Abstract] Basis of Presentation Organization Consolidation And Presentation Of Financial Statements Disclosure [Text Block] Restructuring And Related Activities [Abstract] Charges and Credits Restructuring And Related Activities Disclosure [Text Block] Earnings Per Share [Abstract] Earnings Per Share Earnings Per Share [Text Block] Inventory Disclosure [Abstract] Inventories Inventory Disclosure [Text Block] Property Plant And Equipment [Abstract] Fixed Assets Property Plant And Equipment Disclosure [Text Block] Disclosure of the carrying amount of multiclient seismic data based on completed and in-process seismic surveys. Multiclient seismic data. Multiclient Seismic Data [Abstract] Multiclient Seismic Data Multiclient Seismic Data [Text Block] Goodwill And Intangible Assets Disclosure [Abstract] Goodwill Goodwill Disclosure [Text Block] Intangible Assets Intangible Assets Disclosure [Text Block] Debt Disclosure [Abstract] Long-term Debt Long Term Debt [Text Block] Derivative Instruments And Hedging Activities Disclosure [Abstract] Derivative Instruments and Hedging Activities Derivative Instruments And Hedging Activities Disclosure [Text Block] Income Tax Disclosure [Abstract] Income Taxes Income Tax Disclosure [Text Block] Commitments And Contingencies Disclosure [Abstract] Contingencies Loss Contingency Disclosures Segment Reporting [Abstract] Segment Information Segment Reporting Disclosure [Text Block] Compensation And Retirement Disclosure [Abstract] Pension and Other Postretirement Benefit Plans Pension And Other Postretirement Benefits Disclosure [Text Block] Equity [Abstract] Accumulated Other Comprehensive Loss Comprehensive Income Note [Text Block] Merger with Cameron International Corporation Business Combinations Policy New Accounting Pronouncements New Accounting Pronouncements Policy Policy [Text Block] Summary of charges. Summary of the Charges Summary Of Charges Table [Text Block] Reconciliation of Earnings Per Share Schedule Of Earnings Per Share Basic And Diluted Table [Text Block] Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share Schedule Of Antidilutive Securities Excluded From Computation Of Earnings Per Share [Text Block] Summary of Inventory Schedule Of Inventory Current Table [Text Block] Summary of Fixed Assets Property Plant And Equipment [Text Block] Disclosure of the carrying amount of multiclient seismic data based on completed and in-process seismic surveys. Change in Carrying Amount of Multiclient Seismic Data Multiclient Seismic Data Table [Text Block] Changes in Carrying Amount of Goodwill Schedule Of Goodwill [Text Block] Schedule of Intangible Assets by Major Class Schedule Of Finite Lived Intangible Assets Table [Text Block] Summary of Long-term Debt Schedule Of Debt Instruments [Text Block] Fair Values of Outstanding Derivative Instruments Schedule Of Derivative Instruments In Statement Of Financial Position Fair Value [Text Block] Effect of Derivative Instruments Designated as Fair Value Hedges and Not Designated as Hedges on Consolidated Statement of Income Schedule Of Derivative Instruments Gain Loss In Statement Of Financial Performance [Text Block] Income Before Taxes Subject to US and Non-US Income Taxes Schedule Of Income Before Income Tax Domestic And Foreign Table [Text Block] Components of Net Deferred Tax Assets (Liabilities) Schedule Of Deferred Tax Assets And Liabilities Table [Text Block] Components of Income Taxes Schedule Of Components Of Income Tax Expense Benefit Table [Text Block] Reconciliation of US Statutory Federal Tax Rate Schedule Of Effective Income Tax Rate Reconciliation Table [Text Block] Schedule of Segment Reporting Information, by Segment Schedule Of Segment Reporting Information By Segment [Text Block] Net Pension Cost for Schlumberger Pension Plans and US Postretirement Medical Plan Schedule Of Net Benefit Costs Table [Text Block] Schedule of Accumulated Other Comprehensive Loss Schedule Of Accumulated Other Comprehensive Income Loss Table [Text Block] Schedule Of Business Acquisitions By Acquisition Equity Interest Issued Or Issuable [Table] Schedule Of Business Acquisitions By Acquisition Equity Interest Issued Or Issuable [Table] Business Acquisition Business Acquisition [Axis] Business Acquisition, Acquiree Business Acquisition Acquiree [Domain] Cameron. Cameron Cameron [Member] Subsequent Event Type Subsequent Event Type [Axis] Subsequent Event Type Subsequent Event Type [Domain] Subsequent Event Subsequent Event [Member] Business Acquisition Equity Interests Issued Or Issuable [Line Items] Business Acquisition Equity Interests Issued Or Issuable [Line Items] Business acquisition acquirer shares received by acquire shareholders. Common stock received by Cameron shareholders Business Acquisition Acquirer Shares Received By Acquire Shareholders Cash payment in exchange of each share of common stock Business Acquisition Share Price Number of shares issued under merger agreement Business Acquisition Equity Interests Issued Or Issuable Number Of Shares Issued Additional cash payments under merger agreement Payments To Acquire Businesses Gross Fair value of consideration transferred Business Combination Consideration Transferred1 Net tangible assets Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Net Cash and short-term investments Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Cash And Equivalents Accounts receivable Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Current Assets Receivables Inventories Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Inventory Fixed assets Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Property Plant And Equipment Debt Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Noncurrent Liabilities Long Term Debt Other net liabilities Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Noncurrent Liabilities Other Charges and credits. Charges and credits. Charges And Credits [Table] Charges And Credits [Table] Restructuring Type Restructuring Cost And Reserve [Axis] Type of Restructuring Type Of Restructuring [Domain] Workforce reduction Employee Severance [Member] Currency devaluation loss in Venezuela. Currency Devaluation Loss In Venezuela Currency Devaluation Loss In Venezuela [Member] Charges And Credits [Line Items] Charges And Credits [Line Items] Exchange rate Foreign Currency Exchange Rate Remeasurement1 Foreign currency transactions, description Foreign Currency Transactions Description Charges and credits pretax. Charges and credits tax. Charges and credits. Investment in joint venture. Investment in joint venture. Investment In Joint Venture [Table] Investment In Joint Venture [Table] Income Statement Location Income Statement Location [Axis] Income Statement Location Income Statement Location [Domain] Restructuring and other. Restructuring And Other Restructuring And Other [Member] Investment In Joint Venture [Line Items] Investment In Joint Venture [Line Items] Charges and credits, Pretax Charges And Credits Pretax Charges and credits, Tax Charges And Credits Tax Charges and credits, Net Charges And Credits Schlumberger Net Income: Net Income Loss [Abstract] Basic Net Income Loss Available To Common Stockholders Basic Diluted Net Income Loss Available To Common Stockholders Diluted Assumed exercise of stock options Incremental Common Shares Attributable To Call Options And Warrants Unvested restricted stock Incremental Common Shares Attributable To Nonvested Shares With Forfeitable Dividends Diluted Earnings per Share: Earnings Per Share Reconciliation [Abstract] Basic Diluted Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount Raw materials & field materials Inventory Raw Materials And Supplies Work in progress Inventory Work In Process Finished goods Inventory Finished Goods Inventories Property, plant & equipment Property Plant And Equipment Gross Less: Accumulated depreciation Accumulated Depreciation Depletion And Amortization Property Plant And Equipment Fixed assets less accumulated depreciation Depreciation expense relating to fixed assets Depreciation Multiclient seismic data capitalized in period. Multiclient seismic data charged to cost of goods sold and services. Opening balance Capitalized in period Multiclient Seismic Data Capitalized In Period Charged to expense Multiclient Seismic Data Charged To Cost Of Goods Sold And Services Ending balance Schedule Of Goodwill [Table] Schedule Of Goodwill [Table] Consolidation Items Consolidation Items [Axis] Consolidation Items Consolidation Items [Domain] Operating Segments Operating Segments [Member] Segments Statement Business Segments [Axis] Segments Segment [Domain] Reservoir characterization. Reservoir Characterization Reservoir Characterization [Member] Drilling. Drilling Drilling [Member] Production. Production Production [Member] Goodwill [Line Items] Goodwill [Line Items] Goodwill, Beginning Balance Acquisitions Goodwill Acquired During Period Impact of changes in exchange rates Goodwill Translation And Purchase Accounting Adjustments Goodwill, Ending Balance Schedule Of Finite Lived Intangible Assets [Table] Schedule Of Finite Lived Intangible Assets [Table] Finite-Lived Intangible Assets by Major Class Finite Lived Intangible Assets By Major Class [Axis] Finite-Lived Intangible Assets, Major Class Name Finite Lived Intangible Assets Major Class Name [Domain] Customer Relationships Customer Relationships [Member] Technology/Technical Know-How Developed Technology Rights [Member] Tradenames Trade Names [Member] Other Other Intangible Assets [Member] Finite Lived Intangible Assets [Line Items] Finite Lived Intangible Assets [Line Items] Gross Book Value Finite Lived Intangible Assets Gross Accumulated Amortization Finite Lived Intangible Assets Accumulated Amortization Net Book Value Amortization expense Amortization Of Intangible Assets Estimated amortization charged to income, remaining three quarters of 2016 Finite Lived Intangible Assets Amortization Expense Remainder Of Fiscal Year Estimated amortization charged to income, 2017 Finite Lived Intangible Assets Amortization Expense Next Twelve Months Estimated amortization charged to income, 2018 Finite Lived Intangible Assets Amortization Expense Year Two Estimated amortization charged to income, 2019 Finite Lived Intangible Assets Amortization Expense Year Three Estimated amortization charged to income, 2020 Finite Lived Intangible Assets Amortization Expense Year Four Estimated amortization charged to income, 2021 Finite Lived Intangible Assets Amortization Expense Year Five Debt Instrument [Table] Debt Instrument [Table] Debt Instrument Debt Instrument [Axis] Debt Instrument, Name Debt Instrument Name [Domain] Four point zero zero percent senior notes due two thousand twenty five. 4.00% Senior Notes due 2025 Four Point Zero Zero Percent Senior Notes Due Two Thousand Twenty Five [Member] Three point three zero percent senior notes due two thousand twenty one. 3.30% Senior Notes due 2021 Three Point Three Zero Percent Senior Notes Due Two Thousand Twenty One [Member] Three point zero zero percent senior notes due two thousand twenty. 3.00% Senior Notes due 2020 Three Point Zero Zero Percent Senior Notes Due Two Thousand Twenty [Member] Three point six five percent senior notes due two thousand twenty three. 3.65% Senior Notes due 2023 Three Point Six Five Percent Senior Notes Due Two Thousand Twenty Three [Member] Two point three five percent senior notes due two thousand eighteen. 2.35% Senior Notes due 2018 Two Point Three Five Percent Senior Notes Due Two Thousand Eighteen [Member] Senior notes four point two zero percent due two thousand twenty one. 4.20% Senior Notes due 2021 Senior Notes Four Point Two Zero Percent Due Two Thousand Twenty One [Member] Senior notes one point two five percent due two thousand and seventeen. 1.25% Senior Notes due 2017 Senior Notes One Point Two Five Percent Due Two Thousand And Seventeen [Member] Senior notes two point four zero percent due two thousand and twenty two. 2.40% Senior Notes due 2022 Senior Notes Two Point Four Zero Percent Due Two Thousand And Twenty Two [Member] Three point six three percent senior notes due two thousand and twenty two. 3.63% Senior Notes due 2022 Three Point Six Three Percent Senior Notes Due Two Thousand And Twenty Two [Member] Guaranteed notes zero point six three percent due two thousand nineteen. 0.63% Guaranteed Notes due 2019 Guaranteed Notes Zero Point Six Three Percent Due Two Thousand Nineteen [Member] Guaranteed notes one point five zero percent due two thousand nineteen. 1.50% Guaranteed Notes due 2019 Guaranteed Notes One Point Five Zero Percent Due Two Thousand Nineteen [Member] One point nine zero percent senior notes due two thousand seventeen. 1.90% Senior Notes due 2017 One Point Nine Zero Percent Senior Notes Due Two Thousand Seventeen [Member] Debt, other. Other Debt Other [Member] Long-term Debt, Type Longterm Debt Type [Axis] Long-term Debt, Type Longterm Debt Type [Domain] Commercial paper borrowings Commercial Paper [Member] Debt Instrument [Line Items] Debt Instrument [Line Items] Long-term debt, carrying amount Debt instrument maturity. Debt instrument interest rate Debt Instrument Interest Rate Stated Percentage Debt instrument maturity date Debt Instrument Maturity Year Long-term debt, fair value Debt Instrument Fair Value Long-term debt Long Term Debt Floating interest rate on securities. Derivative [Table] Derivative [Table] Variable Rate Variable Rate [Axis] Variable Rate Variable Rate [Domain] London Interbank Offered Rate (LIBOR) London Interbank Offered Rate L I B O R [Member] Derivative Instrument Derivative Instrument Risk [Axis] Derivative Contract Derivative Contract Type [Domain] Cross currency swap Cross Currency Interest Rate Contract [Member] Fixed rate debt. Fixed Rate Debt Fixed Rate Debt [Member] Floating rate debt. Floating Rate Debt Floating Rate Debt [Member] Range Range [Axis] Range Range [Member] Minimum Minimum [Member] Foreign exchange contracts Foreign Exchange Contract [Member] Derivative, by Nature Derivative By Nature [Axis] Derivative, Name Derivative Name [Domain] Debt Debt [Member] Hedging Designation Hedging Designation [Axis] Hedging Designation Hedging Designation [Domain] Derivatives designated as hedges Designated As Hedging Instrument [Member] Derivative [Line Items] Derivative [Line Items] Notional amount of interest rate swap Derivative Notional Amount Guaranteed notes face amount Debt Instrument Face Amount Derivative swap interest rate Derivative Swaption Interest Rate Floating interest rate on securities Floating Interest Rate On Securities Basis point Derivative Basis Spread On Variable Rate Fixed rate debt. Variable rate debt. Fixed rate debt aggregate, after taking into account the effects of the interest rate swaps Fixed Rate Debt Variable rate debt aggregate, after taking into account the effects of the interest rate swaps Variable Rate Debt Short-term investments and fixed income investments, held to maturity Marketable Securities Number of countries in which Schlumberger conducts business Number Of Countries In Which Entity Operates Recognized a cumulative net (loss) in Accumulated other comprehensive loss relating to revaluation of foreign currency forward contracts and foreign currency options designated as cash flow hedges Foreign Currency Cash Flow Hedge Gain Loss Reclassified To Earnings Net Fair Values Derivatives Balance Sheet Location By Derivative Contract Type By Hedging Designation [Table] Fair Values Derivatives Balance Sheet Location By Derivative Contract Type By Hedging Designation [Table] Derivatives not designated as hedges Nondesignated [Member] Balance Sheet Location Balance Sheet Location [Axis] Balance Sheet Location Balance Sheet Location [Domain] Other current assets Other Current Assets [Member] Other Assets Other Assets [Member] Accounts payable and accrued liabilities Accounts Payable And Accrued Liabilities [Member] Other Liabilities Other Liabilities [Member] Derivatives Fair Value [Line Items] Derivatives Fair Value [Line Items] Derivative Assets Derivative Asset Fair Value Net [Abstract] Derivative Assets Derivative Fair Value Of Derivative Asset Derivative Liabilities Derivative Liability Fair Value Net [Abstract] Derivative Liabilities Derivative Liabilities Derivative Instruments Gain Loss By Hedging Relationship By Income Statement Location By Derivative Instrument Risk [Table] Derivative Instruments Gain Loss By Hedging Relationship By Income Statement Location By Derivative Instrument Risk [Table] Hedging Relationship Derivative Instruments Gain Loss By Hedging Relationship [Axis] Hedging Relationship Hedging Relationship [Domain] Cash Flow Hedging Cash Flow Hedging [Member] Interest Interest Expense [Member] Cost of revenue Cost Of Sales [Member] Derivative Instruments Gain Loss [Line Items] Derivative Instruments Gain Loss [Line Items] Gain (Loss) Recognized in Income Derivative Gain Loss On Derivative Net Income before taxes, United States Income Loss From Continuing Operations Before Income Taxes Domestic Income before taxes, Outside United States Income Loss From Continuing Operations Before Income Taxes Foreign Income tax disclosure. Income Tax Disclosure Income Tax Disclosure [Table] Income Tax Disclosure [Table] Income Tax Authority Income Tax Authority [Axis] Income Tax Authority Income Tax Authority [Domain] Domestic Country Domestic Country [Member] Foreign Country Foreign Country [Member] Income Tax Disclosure [Line Items] Income Tax Disclosure [Line Items] Postretirement benefits Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Postretirement Benefits Intangible assets Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets Investments in non-US subsidiaries Deferred Tax Liabilities Investment In Noncontrolled Affiliates Fixed assets, net Deferred Tax Liabilities Property Plant And Equipment Inventories Deferred Tax Assets Inventory Other, net Deferred Tax Assets Other Net deferred tax assets (liabilities) Deferred Tax Liabilities Deferred tax assets, valuation allowances relating to net operating losses in certain countries Deferred Tax Assets Operating Loss Carryforwards Foreign Current: Current Income Tax Expense Benefit Continuing Operations [Abstract] United States-Federal Current Federal Tax Expense Benefit United States-State Current State And Local Tax Expense Benefit Outside United States Current Foreign Tax Expense Benefit Current Income Tax Expense (Benefit), Total Current Income Tax Expense Benefit Deferred: Deferred Income Tax Expense Benefit Continuing Operations [Abstract] United States-Federal Deferred Federal Income Tax Expense Benefit United States-State Deferred State And Local Income Tax Expense Benefit Outside United States Deferred Foreign Income Tax Expense Benefit Valuation Allowance Valuation Allowance Deferred Tax Asset Change In Amount Deferred income taxes Deferred Income Tax Expense Benefit Consolidated taxes on income US federal statutory rate Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate Charges and credits. Charges And Credits Charges And Credits [Member] Disclosure Income Tax Reconciliation Of U S Statutory Federal Tax Rate Detail [Line Items] Disclosure Income Tax Reconciliation Of U S Statutory Federal Tax Rate Detail [Line Items] State tax Effective Income Tax Rate Reconciliation State And Local Income Taxes Non-US income taxed at different rates Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential Charges and credits (See Note 2) Effective Income Tax Rate Reconciliation Nondeductible Expense Other Effective Income Tax Rate Reconciliation Other Adjustments Effective income tax rate Effective Income Tax Rate Continuing Operations Schedule Of Segment Reporting Information By Segment [Table] Schedule Of Segment Reporting Information By Segment [Table] Eliminations and other adjustments. Eliminations & other Eliminations And Other Adjustments [Member] Material Reconciling Items Material Reconciling Items [Member] Segment Reporting Information [Line Items] Segment Reporting Information [Line Items] Pretax operating income Operating Income Loss Corporate and other expenses. Corporate & other Corporate And Other Expenses Interest income Interest Income Operating Income before Taxes Interest expense Schedule Of Defined Benefit Plans Disclosures [Table] Schedule Of Defined Benefit Plans Disclosures [Table] Defined Benefit Plans and Other Postretirement Benefit Plans Defined Benefit Plans Disclosures Defined Benefit Plans [Axis] Defined Benefit Plan and Other Postretirement Benefit Plan Defined Benefit Plans [Domain] US Plan Assets United States Pension Plans Of U S Entity Defined Benefit [Member] International Foreign Pension Plans Defined Benefit [Member] Postretirement medical plan Defined Benefit Postretirement Health Coverage [Member] Defined Benefit Plan Disclosure [Line Items] Defined Benefit Plan Disclosure [Line Items] Service cost Defined Benefit Plan Service Cost Interest cost Defined Benefit Plan Interest Cost Expected return on plan assets Defined Benefit Plan Expected Return On Plan Assets Amortization of prior service cost Defined Benefit Plan Amortization Of Prior Service Cost Credit Amortization of net loss (gain) Defined Benefit Plan Amortization Of Gains Losses Total pension cost Defined Benefit Plan Net Periodic Benefit Cost Accumulated Other Comprehensive Income Loss Net Of Tax [Abstract] Accumulated Other Comprehensive Income Loss [Table] Accumulated Other Comprehensive Income Loss [Table] Currency Translation Adjustments Accumulated Translation Adjustment [Member] Unrealized Gain/(Loss) on Marketable Securities Accumulated Net Unrealized Investment Gain Loss [Member] Cash Flow Hedges Accumulated Net Gain Loss From Designated Or Qualifying Cash Flow Hedges [Member] Pension and Other Postretirement Benefit Plans Accumulated Defined Benefit Plans Adjustment [Member] Accumulated Other Comprehensive Income Loss [Line Items] Accumulated Other Comprehensive Income Loss [Line Items] Beginning Balance Other comprehensive gain (loss) before reclassifications Other Comprehensive Income Loss Before Reclassifications Before Tax Amounts reclassified from accumulated other comprehensive loss Reclassification From Accumulated Other Comprehensive Income Current Period Before Tax Income taxes Other Comprehensive Income Loss Tax Net other comprehensive (loss) income Other Comprehensive Income Loss Net Of Tax Ending Balance