Pension And Other Postretirement Benefits

9 Months Ended

Sep. 30, 2024

Pension And Other Postretirement Benefits [Abstract]

Pension And Other Postretirement Benefits

6. PENSION AND OTHER POSTRETIREMENT BENEFITS

We have a noncontributory defined benefit pension plan (the "Pension Plan") covering substantially all employees first hired prior to July 1, 2015 after the completion of one year of service and 1,000 hours of service.  The Pension Plan provides retirement benefits based on an employee’s final average earnings and years of service.  A supplemental benefit plan provides nonqualified pension benefits for compensation in excess of the IRS compensation limits applicable to the Pension Plan and eligible compensation deferred by a participant.

Our funding policy is to make contributions to the Pension Plan, provided that the total annual contributions will not be less than the Employee Retirement Income Security Act of 1974 (“ERISA”) and the Pension Protection Act of 2006 minimums or greater than the maximum tax-deductible amount, to review the contribution and funding strategy on a regular basis, and to allow discretionary contributions to be made by us from time to time.  The assets of the Pension Plan are invested primarily in fixed income investments and equity securities. We pay nonqualified pension benefits when they are due according to the terms of the supplemental benefit plan. We have an employee deferred compensation trust to meet funding obligations for nonqualified pension benefits to certain participants in the supplemental benefit plan. The assets of the employee deferred compensation trust are invested in highly liquid money market funds and U.S. Treasury securities.

We provide certain postretirement healthcare and life insurance benefits to retired employees. Substantially all of our employees hired or rehired prior to 2014 may become eligible for postretirement medical benefits if they reach the age and service requirements of the retiree medical plan and retire on a pension (except a deferred pension) under the Pension Plan. Postretirement life insurance

benefits are insured through an insurance company. We fund postretirement benefits as incurred, and accordingly, there were no assets held in the postretirement benefits plan at September 30, 2024 and December 31, 2023.

The net periodic benefit cost for the three and nine months ended September 30, 2024 and 2023 included the following components:

	Pension Benefits				Postretirement Benefits
	Three Months Ended				Three Months Ended
	September 30,				September 30,
Components of Net Periodic Benefit Cost	2024		2023		2024		2023
Selling, general and administrative expenses:
Service cost	$	5.7	$	6.1	$	0.4	$	0.3
Total selling, general and administrative expenses	$	5.7	$	6.1	$	0.4	$	0.3
Non-operating expenses, net:
Interest cost	$	8.0	$	8.0	$	0.8	$	0.9
Expected return on plan assets		(8.0)		(7.2)		—		—
Amortization of net actuarial loss		1.9		0.3		—		—
Total non-operating expenses, net	$	1.9	$	1.1	$	0.8	$	0.9
Net periodic benefit cost	$	7.6	$	7.2	$	1.2	$	1.2

	Pension Benefits				Postretirement Benefits
	Nine Months Ended				Nine Months Ended
	September 30,				September 30,
Components of Net Periodic Benefit Cost	2024		2023		2024		2023
Selling, general and administrative expenses:
Service cost	$	17.0	$	18.3	$	1.1	$	1.0
Total selling, general and administrative expenses	$	17.0	$	18.3	$	1.1	$	1.0
Non-operating expenses, net:
Interest cost	$	24.0	$	23.9	$	2.4	$	2.6
Expected return on plan assets		(24.0)		(21.7)		—		—
Amortization of net actuarial loss		5.7		0.9		—		—
Total non-operating expenses, net	$	5.7	$	3.1	$	2.4	$	2.6
Net periodic benefit cost	$	22.7	$	21.4	$	3.5	$	3.6

We made qualified and nonqualified pension contributions totaling $20.0 million during the three-month period ended September 30, 2024 and contributions totaling $80.0 million during the three-month period ended September 30, 2023. Contributions made during the nine-month periods ended September 30, 2024 and 2023 totaled $41.1 million and $103.9 million, respectively. No additional contributions are expected to be paid during the remainder of 2024, but may change at our discretion.