Pension and Other Postretirement Benefit Plans (Tables)

3 Months Ended

Mar. 31, 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)
	First Quarter
	2019						2018
	US			Int'l			US			Int'l
Service cost	$	14		$	32		$	16		$	32
Interest cost		45			83			43			77
Expected return on plan assets		(58	)		(150	)		(62	)		(147	)
Amortization of prior service cost		2			2			3			3
Amortization of net loss		8			16			12			44
	$	11		$	(17	)	$	12		$	9

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

(Stated in millions)
	First Quarter
	2019			2018
Service cost	$	8		$	8
Interest cost		12			11
Expected return on plan assets		(16	)		(15	)
Amortization of prior service credit		(7	)		(7	)
	$	(3	)	$	(3	)