Derivative Instruments and Hedging Activities - Additional Information (Detail)	9 Months Ended
	Sep. 30, 2017 USD ($) Country	Dec. 31, 2016 USD ($)	Dec. 31, 2013 EUR (€)
Derivative [Line Items]
Fixed rate debt, after taking into account the effects of the interest rate swaps	$ 13,000,000,000
Variable rate debt, after taking into account the effects of the interest rate swaps	4,200,000,000
Short-term investments	3,262,000,000	$ 6,328,000,000
Recognized a cumulative net gain in Accumulated other comprehensive loss relating to revaluation of foreign currency forward contracts and foreign currency options designated as cash flow hedges	$ 4,000,000
Minimum
Derivative [Line Items]
Number of countries in which Schlumberger conducts business | Country	85
1.50% Guaranteed Notes due 2019
Derivative [Line Items]
Guaranteed notes face amount | €			€ 500,000,000
Cross currency swap
Derivative [Line Items]
Notional amount of interest rate swap | €			€ 500,000,000
Fixed Rate Debt | 1.50% Guaranteed Notes due 2019
Derivative [Line Items]
Derivative swap interest rate			1.50%
Floating Rate Debt | 1.50% Guaranteed Notes due 2019
Derivative [Line Items]
Floating interest rate on securities	three-month LIBOR plus approximately 64 basis points
Foreign exchange contracts
Derivative [Line Items]
Notional amount of interest rate swap	$ 3,600,000,000
Foreign exchange contracts | Debt | Derivatives designated as hedges
Derivative [Line Items]
Notional amount of interest rate swap	$ 800,000,000
London Interbank Offered Rate (LIBOR) | Floating Rate Debt | 1.50% Guaranteed Notes due 2019
Derivative [Line Items]
Basis point	0.64%