Acquisitions	12 Months Ended
Dec. 31, 2014
Business Combinations [Abstract]
Acquisitions	4. Acquisitions Formation of OneSubsea Joint Venture On June 30, 2013, Schlumberger and Cameron completed the formation of OneSubsea, a joint venture to manufacture and develop products, systems and services for the subsea oil and gas market. Schlumberger and Cameron each contributed all of their respective subsea businesses to the joint venture and Schlumberger made a $600 million cash payment to Cameron. Schlumberger owns 40% of OneSubsea and accounts for this investment under the equity method. Schlumberger recognized a pretax and after-tax gain of $1.028 billion, which is classified as Gain on formation of OneSubsea in the Consolidated Statement of Income, as a result of the deconsolidation of its subsea business. This gain is equal to the difference between the fair value of the Schlumberger subsea business, which was determined based on the present value of its estimated future cash flows, and its carrying value at the time of closing. Other Schlumberger made other acquisitions and investments for cash payments, net of cash acquired, of $1.008 billion during 2014, $610 million during 2013, and $845 million during 2012. Additionally, during 2014, Schlumberger issued 2.1 million shares of its common stock, valued at $213 million, in connection with an acquisition. None of these transactions were significant to Schlumberger’s consolidated financial statements, individually or in the aggregate. On January 20, 2015, Schlumberger announced that it has entered into an agreement to acquire a minority ownership of approximately 45% in Eurasia Drilling Company Limited, the largest provider of onshore drilling services in Russia. The total cost of this transaction, including an option which will allow Schlumberger, at its election, to purchase the remaining shares during a two-year period commencing on the third anniversary of the closing of the transaction, is approximately $1.7 billion in cash. This transaction is expected to close during the first quarter of 2015.

Acquisitions

12 Months Ended

Dec. 31, 2014

4. Acquisitions

Formation of OneSubsea Joint Venture

On June 30, 2013, Schlumberger and Cameron completed the formation of OneSubsea, a joint venture to manufacture and develop products, systems and services for the subsea oil and gas market. Schlumberger and Cameron each contributed all of their respective subsea businesses to the joint venture and Schlumberger made a $600 million cash payment to Cameron. Schlumberger owns 40% of OneSubsea and accounts for this investment under the equity method. Schlumberger recognized a pretax and after-tax gain of $1.028 billion, which is classified as Gain on formation of OneSubsea in the Consolidated Statement of Income, as a result of the deconsolidation of its subsea business. This gain is equal to the difference between the fair value of the Schlumberger subsea business, which was determined based on the present value of its estimated future cash flows, and its carrying value at the time of closing.

Other

Schlumberger made other acquisitions and investments for cash payments, net of cash acquired, of $1.008 billion during 2014, $610 million during 2013, and $845 million during 2012. Additionally, during 2014, Schlumberger issued 2.1 million shares of its common stock, valued at $213 million, in connection with an acquisition. None of these transactions were significant to Schlumberger’s consolidated financial statements, individually or in the aggregate.

On January 20, 2015, Schlumberger announced that it has entered into an agreement to acquire a minority ownership of approximately 45% in Eurasia Drilling Company Limited, the largest provider of onshore drilling services in Russia. The total cost of this transaction, including an option which will allow Schlumberger, at its election, to purchase the remaining shares during a two-year period commencing on the third anniversary of the closing of the transaction, is approximately $1.7 billion in cash. This transaction is expected to close during the first quarter of 2015.