The following table sets forth the components of the net periodic benefit costs for our defined benefit pension and postretirement benefit plans for the three months ended March 31, 2025 and 2024:



	Three months ended March 31,				Three months ended March 31,
	2025				2024
	Pension Benefit		Postretirement Benefit		Pension Benefit		Postretirement Benefit

	(in millions)				(in millions)
Service cost - benefits earned during the period	$	—	$	1	$	—	$	—
Interest cost on projected benefit obligation	4		1		—		—
Expected return on plan assets	(6)		(1)		—		—




Amortization of net actuarial loss	—		(1)		—		—
Amortization of prior service cost credit	—		(1)		—		(1)
Net periodic benefit costs	$	(2)	$	(1)	$	—	$	(1)