EMPLOYEE BENEFITS

3 Months Ended

Mar. 31, 2022

Retirement Benefits [Abstract]

EMPLOYEE BENEFITS

EMPLOYEE BENEFITS

The following tables show the components of net periodic benefit cost (credit) for our benefit plans.

	Pension Benefits
	Three Months Ended March 31
(in millions)	2022		2021
Service cost	$	12.4	$	13.9
Interest cost	22.8		21.9
Expected return on plan assets	(52.7)		(50.6)
Loss on plan settlement	—		0.1
Amortization of prior service cost	0.4		0.4
Amortization of net actuarial loss	19.1		27.4
Net periodic benefit cost	$	2.0	$	13.1

	OPEB Benefits
	Three Months Ended March 31
(in millions)	2022		2021
Service cost	$	3.8	$	4.2
Interest cost	3.9		3.6
Expected return on plan assets	(17.2)		(16.4)
Amortization of prior service credit	(4.0)		(4.0)
Amortization of net actuarial gain	(6.0)		(5.7)
Net periodic benefit credit	$	(19.5)	$	(18.3)

During the three months ended March 31, 2022, we made contributions and payments of $3.1 million related to our pension plans and $0.5 million related to our OPEB plans. We expect to make contributions and payments of $8.0 million related to our pension plans and $2.1 million related to our OPEB plans during the remainder of 2022, dependent upon various factors affecting us, including our liquidity position and possible tax law changes.