Contingencies	9 Months Ended
Sep. 30, 2015
Commitments And Contingencies Disclosure [Abstract]
Contingencies	12. Contingencies During 2015, Schlumberger resolved a previously disclosed investigation by the U.S. Department of Justice into past violations of US sanctions regarding its historical operations in Iran and Sudan that occurred between 2004 and 2010. A non-US subsidiary of Schlumberger pleaded guilty to one criminal count of conspiracy to violate the International Emergency Economic Powers Act. Under the terms of the plea agreement, Schlumberger paid a total amount of approximately $233 million in fines, penalties and assessments during the second quarter of 2015, which had been previously accrued. This payment is reflected within Cash flows used in discontinued operations – operating activities in Schlumberger’s Consolidated Statement of Cash Flows. Schlumberger and its subsidiaries are party to various legal proceedings from time to time. A liability is accrued when a loss is both probable and can be reasonably estimated. Management believes that the probability of a material loss with respect to any currently pending legal proceedings is remote. However, litigation is inherently uncertain and it is not possible to predict the ultimate disposition of any of these proceedings.

Contingencies

9 Months Ended

Sep. 30, 2015

Commitments And Contingencies Disclosure [Abstract]

12. Contingencies

During 2015, Schlumberger resolved a previously disclosed investigation by the U.S. Department of Justice into past violations of US sanctions regarding its historical operations in Iran and Sudan that occurred between 2004 and 2010. A non-US subsidiary of Schlumberger pleaded guilty to one criminal count of conspiracy to violate the International Emergency Economic Powers Act. Under the terms of the plea agreement, Schlumberger paid a total amount of approximately $233 million in fines, penalties and assessments during the second quarter of 2015, which had been previously accrued. This payment is reflected within Cash flows used in discontinued operations – operating activities in Schlumberger’s Consolidated Statement of Cash Flows.

Schlumberger and its subsidiaries are party to various legal proceedings from time to time. A liability is accrued when a loss is both probable and can be reasonably estimated. Management believes that the probability of a material loss with respect to any currently pending legal proceedings is remote. However, litigation is inherently uncertain and it is not possible to predict the ultimate disposition of any of these proceedings.