Pension and Other Postretirement Healthcare Benefits

3 Months Ended

Mar. 31, 2017

Pension and Other Postretirement Healthcare Benefits [Abstract]

Pension and Other Postretirement Healthcare Benefits

18.	Pension and Other Postretirement Healthcare Benefits

We sponsor two noncontributory defined benefit retirement plans in the United States, the qualified retirement plan and Alkali qualified retirement plan (the “U.S. Defined Benefit Plans”). We also have a collective defined contribution plan (a multiemployer plan) in the Netherlands, and a postretirement healthcare plan in South Africa. We had a defined benefit retirement plan in the Netherlands which was settled in the fourth quarter of 2016.

The components of net periodic cost associated with our U.S. Defined Benefit Plans and the Netherlands defined benefit plan recognized in the unaudited Condensed Consolidated Statements of Operations were as follows:

	Three Months Ended March 31,
	2017			2016
Net periodic cost:
Service cost	$	1		$	1
Interest cost		4			5
Expected return on plan assets		(4	)		(5	)
Net amortization of actuarial losses		1			1
Total net periodic cost	$	2		$	2

The components of net periodic cost associated with the postretirement healthcare plan for each of the three months ended March 31, 2017 and 2016 were less than $1 million.

For each of the three months ended March 31, 2017 and 2016, we contributed $1 million to the Netherlands multiemployer plan, which was recognized in “Selling general and administrative expense” in the unaudited Condensed Consolidated Statement of Operations.