Employee Benefits

3 Months Ended

Mar. 31, 2023

Retirement Benefits [Abstract]

Employee Benefits

Employee Benefits

We maintain a number of active defined contribution retirement plans for our employees. The majority of our defined benefit plans are frozen. As a result, no new employees will be permitted to enter these plans and no additional benefits for current participants in the frozen plans will be accrued.

We also have supplemental benefit plans providing senior management with supplemental retirement, disability and death benefits. Certain supplemental retirement benefits are based on final monthly earnings. In addition, we sponsor a voluntary 401(k) plan under which we may match employee contributions up to certain levels of compensation as well as profit-sharing plans under which we contribute a percentage of eligible employees' compensation to the employees' accounts.

We also provide certain medical, dental and life insurance benefits for active and retired employees and eligible dependents. The medical and dental plans and supplemental life insurance plan are contributory, while the basic life insurance plan is noncontributory. We currently do not prefund any of these plans.

We recognize the funded status of our retirement and postretirement plans in the consolidated balance sheets, with a corresponding adjustment to accumulated other comprehensive loss, net of taxes. The amounts in accumulated other comprehensive loss represent net unrecognized actuarial losses and unrecognized prior service costs. These amounts will be subsequently recognized as net periodic pension cost pursuant to our accounting policy for amortizing such amounts.

Net periodic benefit cost for our retirement and postretirement plans other than the service cost component are included in other income, net in our consolidated statements of income.

The components of net periodic benefit cost for our retirement plans and postretirement plans for the three months ended March 31 are as follows: 

(in millions)	2023		2022
Service cost	$	—	$	1
Interest cost	18		12
Expected return on assets	(25)		(22)
Amortization of prior service credit / actuarial loss	1		3
Net periodic benefit cost	$	(6)	$	(6)

Net periodic benefit cost related to our postretirement plans reflected in the table above was not material for the three months ended March 31, 2023 and 2022.

As discussed in our Form 10-K, we changed certain discount rate assumptions for our retirement and postretirement plans and our expected return on assets assumption for our retirement plans which became effective on January 1, 2023. The effect of the assumption changes on retirement and postretirement expense for the three months ended March 31, 2023 did not have a material impact to our financial position, results of operations or cash flows.

In the first three months of 2023, we contributed $2 million to our retirement plans and expect to make additional required contributions of approximately $8 million to our retirement plans during the remainder of the year. We may elect to make additional non-required contributions depending on investment performance or any potential deterioration of our pension plan status in the remaining nine months of 2023.