Pension and Other Postretirement Benefit Plans (Tables)

3 Months Ended

Mar. 31, 2016

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)
	First Quarter
	2016						2015
	US			Int'l			US			Int'l
Service cost	$	18		$	37		$	22		$	49
Interest cost		44			80			41			74
Expected return on plan assets		(61	)		(134	)		(56	)		(128	)
Amortization of prior service cost		3			30			5			30
Amortization of net loss		23			22			31			38
	$	27		$	35		$	43		$	63

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

(Stated in millions)
	First Quarter
	2016			2015
Service cost	$	8		$	11
Interest cost		12			13
Expected return on plan assets		(14	)		(13	)
Amortization of prior service credit		(8	)		(8	)
Amortization of net loss (gain)		-			5
	$	(2	)	$	8