PENSION AND OTHER POSTRETIREMENT BENEFIT PROGRAMS

3 Months Ended

Mar. 31, 2022

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)	2022		2021
Pension benefits
Service cost	$	19	$	22
Interest cost	24		18
Expected return on plan assets	(39)		(36)
Amortization of net losses and prior service costs	12		23
Net periodic pension cost	$	16	$	27
OPEB
Interest cost	$	1	$	1
Amortization of net loss and prior service credit	(3)		(2)
Net periodic OPEB cost (income)	$	(2)	$	(1)