Entity Central Index Key Charges and credits pretax. Charges and credits tax. 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. Equity method investment other than temporary impairment and foreign currency devaluation loss. 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 Well-known Seasoned Issuer Entity Well Known Seasoned Issuer Entity Current Reporting Status Entity Current Reporting Status Entity Voluntary Filers Entity Voluntary Filers Entity Filer Category Entity Filer Category Entity Common Stock, Shares Outstanding Entity Common Stock Shares Outstanding Entity Public Float Entity Public Float Income Statement [Abstract] Revenue Revenues [Abstract] Services Sales Revenue Services Net Product sales Sales Revenue Goods Net Total Revenue Revenues Interest & other income Interest Income And Other Expenses Costs And Expenses [Abstract] Cost of services Cost Of Services Cost of sales Cost Of Goods Sold Research & engineering Research And Development Expense General & administrative General And Administrative Expense Impairments & other Equity Method Investment Other Than Temporary Impairment And Foreign Currency Devaluation Loss Merger & integration Business Combination Integration Related Costs Interest Interest Expense Income (loss) from continuing operations before taxes Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest Taxes on income (loss) Income Tax Expense Benefit Income (loss) from continuing operations Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest Loss from discontinued operations Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity Net income (loss) Profit Loss Net income attributable to noncontrolling interests Net Income Loss Attributable To Noncontrolling Interest Net income (loss) attributable to Schlumberger Net Income Loss Schlumberger amounts attributable to: Net Income Loss Attributable To Reporting Entity [Abstract] Income (loss) from continuing operations Income Loss From Continuing Operations Basic earnings per share of Schlumberger Earnings Per Share Basic [Abstract] Income (loss) from continuing operations Income Loss From Continuing Operations Per Basic Share Loss from discontinued operations Income Loss From Discontinued Operations Net Of Tax Per Basic Share Net income (loss) Earnings Per Share Basic Diluted earnings per share of Schlumberger Earnings Per Share Diluted [Abstract] Income (loss) from continuing operations Income Loss From Continuing Operations Per Diluted Share Loss from discontinued operations Income Loss From Discontinued Operations Net Of Tax Per Diluted Share Net income (loss) 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 gain (loss). Statement Of Income And Comprehensive Income [Abstract] Net income (loss) 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 Reclassification to net income - impairment charge Other Comprehensive Income Loss Reclassification Adjustment From A O C I For Sale Of Securities 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 (loss) 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 gain (loss) Actuarial Gain Loss [Abstract] Actuarial loss arising during the period Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Net Unamortized Gain Loss Arising During Period Before Tax 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 (loss) 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 (loss) 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 - $397; 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] Add: Loss from discontinued operations Adjustments to reconcile net income (loss) to cash provided by operating activities: Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities [Abstract] Impairments and other charges Other Asset Impairment 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 (increase) in receivables Increase Decrease In Receivables Decrease (increase) in inventories Increase Decrease In Inventories Decrease in other current assets Increase Decrease In Other Current Assets (Increase) decrease 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) increase 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 Sale (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) increase in short-term borrowings Proceeds From Repayments Of Short Term Debt Other Proceeds From Payments For Other Financing Activities NET CASH (USED IN) PROVIDED BY FINANCING ACTIVITIES Net Cash Provided By Used In Financing Activities Continuing Operations Cash flow (used in) provided by discontinued operations - operating activities Cash Provided By Used In Operating Activities Discontinued Operations Net increase (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] Business Acquisition Business Acquisition [Axis] Business Acquisition, Acquiree Business Acquisition Acquiree [Domain] Cameron. Cameron Cameron [Member] Statement [Line Items] Statement [Line Items] Balance Balance, shares Shares Outstanding Treasury shares, Balance Treasury Stock Shares Net income (loss) 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 Shares issued for acquisition Stock Issued During Period Value Acquisitions Shares issued for acquisition, shares Stock Issued During Period Shares Acquisitions Acquisition of noncontrolling interest Noncontrolling Interest Increase From Business Combination Other Stockholders Equity Other Balance Balance, shares Treasury shares, Balance Dividends declared, per share Common Stock Dividends Per Share Declared Organization Consolidation And Presentation Of Financial Statements [Abstract] Business Description Nature Of Operations Accounting Policies [Abstract] Summary of Accounting Policies Significant Accounting Policies [Text Block] Restructuring And Related Activities [Abstract] Charges and Credits Restructuring And Related Activities Disclosure [Text Block] Business Combinations [Abstract] Acquisitions Business Combination Disclosure [Text Block] Inventory Disclosure [Abstract] Inventories Inventory Disclosure [Text Block]