PENSION AND OTHER POSTRETIREMENT BENEFIT PLANS (Tables)

9 Months Ended

Sep. 30, 2016

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 2016			SEPTEMBER 2015			SEPTEMBER 2016			SEPTEMBER 2015
Service cost(1)	$	13		$	14		$	37		$	42
Interest cost	70			65			207			198
Expected return on plan assets	(125		)	(115		)	(371		)	(354		)
Amortization of actuarial loss	39			44			117			135
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	$	(2	)	$	9		$	(2	)	$	24

(1) Service cost includes $3 million and $5 million for quarters ended September 30, 2016, and September 30, 2015, respectively, and $10 million and $13 million for the year-to-date periods ended September 30, 2016, and September 30, 2015, respectively for employees of our Cellulose Fibers segment. These charges are included in our results of discontinued operations.

	OTHER POSTRETIREMENT BENEFITS
	QUARTER ENDED						YEAR-TO-DATE ENDED
DOLLAR AMOUNTS IN MILLIONS	SEPTEMBER 2016			SEPTEMBER 2015			SEPTEMBER 2016			SEPTEMBER 2015
Interest cost	$	2		$	2		$	7		$	7
Amortization of actuarial loss	2			2			6			7
Amortization of prior service credit	(2		)	(2		)	(6		)	(6		)
Total net periodic benefit cost - other postretirement benefits	$	2		$	2		$	7		$	8