PENSIONS AND OTHER POSTRETIREMENT BENEFITS (Tables)

3 Months Ended

Mar. 31, 2023

Postemployment Benefits [Abstract]

Schedule of Net Benefit Costs

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

DEFINED BENEFIT PENSION COSTS (CREDITS)

	Three Months Ended March 31,
(In millions)	2023		2022
Service cost	$	8	$	12
Interest cost	59		32
Expected return on plan assets	(79)		(92)
Amortization:
Prior service costs	4		—
Net actuarial loss	1		4
Net periodic benefit credits	$	(7)	$	(44)

OPEB COSTS (CREDITS)

	Three Months Ended March 31,
(In millions)	2023		2022
Service cost	$	2	$	11
Interest cost	16		20
Expected return on plan assets	(11)		(10)
Amortization:
Prior service credits	(4)		—
Net actuarial gain	(36)		(3)
Net periodic benefit costs (credits)	$	(33)	$	18