Pension and Other Postretirement Benefit Plans (Tables)

9 Months Ended

Sep. 30, 2017

Compensation And Retirement Disclosure [Abstract]

Net Pension Cost for Schlumberger Pension Plans and US Postretirement Medical Plan

Net pension cost for the Schlumberger pension plans included the following components:

(Stated in millions)
	Third Quarter												Nine Months
	2017						2016						2017						2016
	US			Int'l			US			Int'l			US			Int'l			US			Int'l
Service cost	$	14		$	24		$	16		$	27		$	44		$	71		$	47		$	83
Interest cost		44			76			44			78			131			230			133			235
Expected return on plan assets		(60	)		(135	)		(60	)		(128	)		(181	)		(406	)		(178	)		(391	)
Amortization of prior service cost		3			24			3			30			9			73			9			91
Amortization of net loss		10			30			20			20			29			90			60			59
	$	11		$	19		$	23		$	27		$	32		$	58		$	71		$	77

The net periodic benefit credit for the Schlumberger US postretirement medical plan included the following components:

(Stated in millions)
	Third Quarter						Nine Months
	2017			2016			2017			2016
Service cost	$	7		$	8		$	22		$	23
Interest cost		11			11			35			35
Expected return on plan assets		(15	)		(14	)		(46	)		(43	)
Amortization of prior service credit		(7	)		(8	)		(22	)		(24	)
	$	(4	)	$	(3	)	$	(11	)	$	(9	)