Accounts payable and accrued liabilities Estimated liability for taxes on income Accumulated other comprehensive loss Accumulated Other Comprehensive Income (Loss) Adjustments to Additional Paid in Capital, Tax Effect from Share-based Compensation Tax benefits on stock options Adjustments to reconcile net income to cash provided by operating activities: Receivables, allowance for doubtful accounts Amendment Description Amendment Flag 4. Acquisitions Assets Assets, Total ASSETS Assets, Current Assets, Current, Total Current Assets Cash Cash, beginning of period Cash, end of period Cash, beginning of period Net increase (decrease) in cash before translation effect Net increase (decrease) in cash before translation effect Dividends declared ($0.42 per share) Dividends declared ($0.42 per share) Cash flow from discontinued operations - operating activities Dividends declared, per share Common Stock Issued Issued Common stock Total comprehensive income Comprehensive income 13. Contingencies Convertible Debt, Current Convertible debentures Convertible Debentures Cost of goods sold and services Expenses Current Fiscal Year End Date 11. Other Financial Instruments Deferred income taxes Deferred Tax Assets, Net, Current Deferred taxes Deferred Taxes Depreciation and amortization 10. Derivative Instruments and Hedging Activities 16. Discontinued Operations Dividend payable Document Information [Text Block] Document Period End Date Document Type Earnings Per Share, Basic Net Income Basic earnings per share of Schlumberger: Earnings Per Share, Diluted Net Income Diluted earnings per share of Schlumberger: 3. Earnings Per Share Translation effect on cash Entity Central Index Key Entity Common Stock, Shares Outstanding Entity Current Reporting Status Entity Filer Category Entity Public Float Entity Registrant Name Entity [Text Block] Entity Voluntary Filers Entity Well-known Seasoned Issuer Equity Component [Domain] Tax benefits on stock options General & administrative Goodwill 8. Goodwill Fixed Income Investments, held to maturity Income (Loss) from Continuing Operations Income from Continuing Operations Income from Continuing Operations before taxes Income from Continuing Operations before taxes Income (Loss) from Continuing Operations, Including Portion Attributable to Noncontrolling Interest Income from Continuing Operations Income (Loss) from Continuing Operations, Per Basic Share Income from Continuing Operations Income from Continuing Operations Less: Income from discontinued operations Discontinued Operations Less: Income from discontinued operations Discontinued Operations Income (Loss) from Discontinued Operations, Net of Tax, Per Basic Share Discontinued Operations Income from Discontinued Operations Earnings of companies carried at equity, less dividends received Earnings of companies carried at equity, less dividends received Income Statement [Abstract] 12. Income Tax Taxes on income (Decrease) increase in accounts payable and accrued liabilities Decrease in estimated liability for taxes on income Increase in inventories Increase in inventories Change in assets and liabilities: Other - net Other - net Decrease in postretirement benefits Decrease (increase) in receivables Decrease (increase) in receivables Increase in other current assets Increase in other current assets 9. Intangible Assets Intangible Assets Interest & other income, net Interest 5. Inventory Inventories Investments in Affiliated Companies Liabilities Liabilities, Total Liabilities and Stockholders' Equity Liabilities and Stockholders' Equity, Total LIABILITIES AND EQUITY Liabilities, Current Liabilities, Current, Total Current Liabilities Long-term debt-current portion Marketing Minority Interest Noncontrolling interests Multiclient Seismic Data 7. Multiclient Seismic Data NET CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES NET CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES Cash flows from financing activities: NET CASH USED BY INVESTING ACTIVITIES NET CASH USED BY INVESTING ACTIVITIES Cash flows from investing activities: NET CASH PROVIDED BY OPERATING ACTIVITIES NET CASH PROVIDED BY OPERATING ACTIVITIES Cash flows from operating activities: Net Income attributable to Schlumberger Net Income attributable to Schlumberger Net income attributable to noncontrolling interests Net income attributable to noncontrolling interests Schlumberger amounts attributable to: Noncontrolling Interests Notes to Financial Statements [Abstract] 1. Basis of Presentation Other current assets Other Assets Other Deferred employee benefits liabilities, net of tax Changes in fair value of derivatives Currency translation adjustments Other Liabilities Other Long-term Debt Other non-cash items Multiclient seismic data capitalized (Purchases) sale of investments, net (Purchases) sale of investments, net Payments for (Proceeds from) Other Investing Activities Other Payments for Repurchase of Equity Stock repurchase plan Dividends paid Dividends paid Business acquisitions, net of cash acquired Business acquisitions, net of cash acquired Capital expenditures Capital expenditures Non-cash postretirement benefits curtailment charge 15. Pension and Other Postretirement Benefits Postretirement Benefits Proceeds from issuance of long-term debt Net decrease in short-term debt Proceeds from exercise of stock options Proceeds from Stock Plans Proceeds from employee stock purchase plan Net income Net Income 6. Fixed Assets Fixed Assets less accumulated depreciation Provision for losses on accounts receivable Acquisition of noncontrolling interest Acquisition of noncontrolling interest Receivables less allowance for doubtful accounts (2009-$149; 2008-$133) Repayment of long-term debt Repayment of long-term debt Research & engineering 2. Charges Retained Earnings (Accumulated Deficit) Retained earnings Retained Earnings Revenue 14. Segment Information Stock-based compensation expense Beginning Balance Ending Balance Beginning Balance Average shares outstanding: Bank & short-term loans Short-term investments Statement, Equity Components [Axis] Statement [Line Items] Statement of Cash Flows [Abstract] Statement of Financial Position [Abstract] Statement of Stockholders' Equity [Abstract] Statement [Table] Schlumberger stockholders' equity Schlumberger stockholders' equity Equity, Total Ending Balance Beginning Balance Equity, Total Equity Stockholders Equity Statement Abstract In Treasury Employee stock purchase plan Stock Issued During Period, Shares, Stock Options Exercised Shares sold to optionees, less shares exchanged Shares issued on conversion of debentures Proceeds from employee stock purchase plan Vesting of restricted stock Stock-based compensation cost Shares sold to optionees, less shares exchanged Shares granted to directors Trading Symbol Common Stock In Treasury In Treasury Treasury stock Treasury stock Stock repurchase plan Stock repurchase plan Assuming dilution Basic