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Derivative Instruments and Hedging Activities - Additional Information (Detail)
3 Months Ended 12 Months Ended
Mar. 31, 2014
USD ($)
Country
Dec. 31, 2013
1.50% Guaranteed Notes due 2019
EUR (€)
Mar. 31, 2014
Foreign exchange contracts
USD ($)
Mar. 31, 2014
Foreign exchange contracts
Debt
Derivatives designated as hedges
USD ($)
Dec. 31, 2013
Fixed Rate Debt
1.50% Guaranteed Notes due 2019
Dec. 31, 2013
Floating Rate Debt
1.50% Guaranteed Notes due 2019
Derivative [Line Items]            
Number of countries in which Schlumberger conducts business 85          
Recognized a cumulative net gain in equity relating to revaluation of foreign currency forward contracts and foreign currency options designated as cash flow hedges $ 42,000,000          
Notional amount of interest rate swap   500,000,000 5,900,000,000 2,500,000,000    
Guaranteed notes face amount   500,000,000        
Derivative swap interest rate         1.50%  
Senior note floating interest rate           three-month LIBOR plus approximately 64 basis points.
Basis points           0.64%
Fixed rate debt aggregate, after taking into account the effects of the interest rate swaps 9,200,000,000          
Variable rate debt aggregate, after taking into account the effects of the interest rate swaps 3,300,000,000          
Short-term investments and Fixed income investments, held to maturity $ 3,700,000,000