Pension and Other Postretirement Benefit Plans (Tables)

9 Months Ended

Sep. 30, 2019

Compensation And Retirement Disclosure [Abstract]

Net Pension Cost (Credit) for Schlumberger Pension Plans and US Postretirement Medical Plan

Net pension cost (credit) for the Schlumberger pension plans included the following components:

(Stated in millions)
	Third Quarter												Nine Months
	2019						2018						2019						2018
	US			Int'l			US			Int'l			US			Int'l			US			Int'l
Service cost	$	14		$	32		$	14		$	35		$	41		$	96		$	44		$	105
Interest cost		45			82			41			77			136			248			125			229
Expected return on plan assets		(58	)		(148	)		(61	)		(149	)		(173	)		(446	)		(186	)		(442	)
Amortization of prior service cost		3			2			3			3			7			6			9			8
Amortization of net loss		7			16			12			35			23			47			36			105
	$	11		$	(16	)	$	9		$	1		$	34		$	(49	)	$	28		$	5

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

(Stated in millions)
	Third Quarter						Nine Months
	2019			2018			2019			2018
Service cost	$	8		$	8		$	23		$	24
Interest cost		12			11			36			33
Expected return on plan assets		(16	)		(15	)		(49	)		(47	)
Amortization of prior service credit		(7	)		(7	)		(21	)		(21	)
	$	(3	)	$	(3	)	$	(11	)	$	(11	)