PENSIONS AND OTHER POSTRETIREMENT BENEFITS

6 Months Ended

Jun. 30, 2023

Postemployment Benefits [Abstract]

PENSIONS AND OTHER POSTRETIREMENT BENEFITS

NOTE 8 - PENSIONS AND OTHER POSTRETIREMENT BENEFITS

We offer defined benefit pension plans, defined contribution pension plans and OPEB plans to a significant portion of our employees and retirees. Benefits are also provided through multiemployer plans for certain union members.

The following are the components of defined benefit pension and OPEB costs (credits):

DEFINED BENEFIT PENSION COSTS (CREDITS)

	Three Months Ended June 30,				Six Months Ended June 30,
(In millions)	2023		2022		2023		2022
Service cost	$	8	$	12	$	16	$	24
Interest cost	58		31		117		63
Expected return on plan assets	(78)		(92)		(157)		(184)
Amortization:
Prior service costs	4		—		8		—
Net actuarial loss	1		3		2		7
Net periodic benefit credits	$	(7)	$	(46)	$	(14)	$	(90)

OPEB COSTS (CREDITS)

	Three Months Ended June 30,				Six Months Ended June 30,
(In millions)	2023		2022		2023		2022
Service cost	$	3	$	10	$	5	$	21
Interest cost	16		20		32		40
Expected return on plan assets	(10)		(9)		(21)		(19)
Amortization:
Prior service credits	(4)		—		(8)		—
Net actuarial gain	(37)		(3)		(73)		(6)
Net periodic benefit costs (credits)	$	(32)	$	18	$	(65)	$	36

Based on funding requirements, we made no defined benefit pension contributions for the three and six months ended June 30, 2023 and June 30, 2022. Based on funding requirements, we made no contributions to our voluntary employee benefit association trust plans for the three and six months ended June 30, 2023. We made contributions of $28 million and $56 million to our voluntary employee benefit association trust plans for the three and six months ended June 30, 2022, respectively.