PENSION AND OTHER POSTRETIREMENT BENEFIT PLANS (Tables)

9 Months Ended

Sep. 30, 2017

Components of Net Periodic Benefit Costs (Credits)

The components of net periodic benefit costs (credits) are:

	PENSION
	QUARTER ENDED						YEAR-TO-DATE ENDED
DOLLAR AMOUNTS IN MILLIONS	SEPTEMBER 2017			SEPTEMBER 2016			SEPTEMBER 2017			SEPTEMBER 2016
Service cost(1)	$	9		$	13		$	26		$	37
Interest cost	66			70			198			207
Expected return on plan assets	(101		)	(125		)	(306		)	(371		)
Amortization of actuarial loss	48			39			145			117
Amortization of prior service cost	1			1			3			3
Accelerated pension costs included in Plum Creek merger-related costs (Note 15)	—			—			—			5
Total net periodic benefit cost (credit) - pension	$	23		$	(2	)	$	66		$	(2	)

(1) Service cost includes $3 million and $10 million for the quarter and year-to-date ended September 30, 2016, respectively, for employees that were part of our Cellulose Fibers divestitures. These charges are included in our results of discontinued operations.

	OTHER POSTRETIREMENT BENEFITS
	QUARTER ENDED						YEAR-TO-DATE ENDED
DOLLAR AMOUNTS IN MILLIONS	SEPTEMBER 2017			SEPTEMBER 2016			SEPTEMBER 2017			SEPTEMBER 2016
Interest cost	$	2		$	2		$	6		$	7
Amortization of actuarial loss	2			2			6			6
Amortization of prior service credit	(2		)	(2		)	(6		)	(6		)
Total net periodic benefit cost - other postretirement benefits	$	2		$	2		$	6		$	7