PENSION AND OTHER POSTRETIREMENT BENEFIT PROGRAMS

3 Months Ended

Mar. 31, 2023

Retirement Benefits [Abstract]

PENSION AND OTHER POSTRETIREMENT BENEFIT PROGRAMS

PENSION AND OTHER POSTRETIREMENT BENEFIT PROGRAMSThe following is a summary of net periodic benefit cost relating to our pension and OPEB plans.

	Three months ended March 31,
(in millions)	2023		2022
Pension benefits
Service cost	$	6	$	19
Interest cost	37		24
Expected return on plan assets	(44)		(39)
Amortization of net losses and prior service costs	1		12
Net periodic pension cost	$	—	$	16
OPEB
Interest cost	$	2	$	1
Amortization of net loss and prior service credit	(6)		(3)
Net periodic OPEB cost (income)	$	(4)	$	(2)