Retirement Plans

12 Months Ended

Dec. 31, 2021

Compensation And Retirement Disclosure [Abstract]

Retirement Plans

13.  Retirement Plans

We have a noncontributory defined benefit pension plan that, prior to July 1, 2005, covered substantially all of our domestic employees who had attained a specified age and one year of employment.  Benefits under the plan were based on years of service and salary history.  In 2005, we amended our defined benefit pension plan to freeze the accrual of future benefits for all U.S. employees, effective on July 1, 2005.  Since the plan is frozen, there is no difference between the projected benefit obligation and accumulated benefit obligation at December 31, 2021 and 2020.  In the table below, the service cost component represents plan administration costs that are incurred directly by the plan.  A reconciliation of the beginning and ending balances of the pension benefit obligation and fair value of plan assets and the funded status of the plan is as follows (in millions):

	Year Ended December 31,
	2021			2020
Change in pension benefit obligation:
Benefit obligation at beginning of year	$	290.6		$	274.4
Service cost		0.5			0.8
Interest cost		6.4			8.0
Net actuarial (gain) loss		(2.8	)		22.6
Benefits paid		(15.3	)		(15.2	)
Benefit obligation at end of year	$	279.4		$	290.6
Change in plan assets:
Fair value of plan assets at beginning of year	$	262.8		$	243.7
Actual return on plan assets		34.8			34.3
Contributions by the company		—			—
Benefits paid		(15.3	)		(15.2	)
Fair value of plan assets at end of year	$	282.3		$	262.8
Funded status of the plan (underfunded)	$	2.9		$	(27.8	)
Amounts recognized in the consolidated balance sheet    consist of:
Noncurrent assets (liabilities) - accrued benefit liability	$	2.9		$	(27.8	)
Accumulated other comprehensive income		42.5			68.3
Net amount included in retained earnings	$	45.4		$	40.5

The components of the net periodic pension benefit cost for the plan and other changes in plan assets and obligations recognized in earnings and other comprehensive earnings consist of the following (in millions):

	Year Ended December 31,
	2021			2020			2019
Net periodic pension cost:
Service cost	$	0.5		$	0.8		$	1.6
Interest cost on benefit obligation		6.4			8.0			9.8
Expected return on plan assets		(17.7	)		(16.4	)		(14.8	)
Amortization of net loss		5.9			6.2			7.0
Net periodic benefit (income) cost		(4.9	)		(1.4	)		3.6
Other changes in plan assets and obligations recognized    in other comprehensive earnings:
Net (gain) loss incurred		(19.9	)		4.7			0.8
Amortization of net loss		(5.9	)		(6.2	)		(7.0	)
Total recognized in other comprehensive loss		(25.8	)		(1.5	)		(6.2	)
Total recognized in net periodic pension cost and other    comprehensive loss	$	(30.7	)	$	(2.9	)	$	(2.6	)

The following weighted average assumptions were used at December 31 in determining the plan’s pension benefit obligation:

	December 31,
	2021			2020
Discount rate		2.50	%		2.25	%
Weighted average expected long-term rate of return on plan assets		7.00	%		7.00	%

The following weighted average assumptions were used at January 1 in determining the plan’s net periodic pension benefit cost:

	Year Ended December 31,
	2021			2020			2019
Discount rate		2.25	%		3.00	%		4.00	%
Weighted average expected long-term rate of return on plan assets		7.00	%		7.00	%		7.00	%

The following benefit payments are expected to be paid by the plan (in millions):

2022	$	16.7
2023		16.8
2024		17.0
2025		17.2
2026		17.2
2027 to 2031		83.0

The following is a summary of the plan’s weighted average asset at December 31 by asset category:

	December 31,
Asset Category	2021			2020
Equity securities		60.0	%		63.0	%
Debt securities		32.0	%		30.0	%
Real estate		8.0	%		7.0	%
Total		100.0	%		100.0	%

Plan assets are invested in various pooled separate accounts under annuity contracts managed by two life underwriting enterprises.  The plan’s investment policy provides that investments will be allocated in a manner designed to provide a long-term investment return greater than the actuarial assumptions, maximize investment return commensurate with risk and to comply with the Employee Income Retirement Security Act of 1974, as amended (which we refer to as ERISA), by investing the funds in a manner consistent with ERISA’s fiduciary standards.  The weighted average expected long-term rate of return on plan assets assumption was determined based on a review of the asset allocation strategy of the plan using expected ten-year return assumptions for all of the asset classes in which the plan was invested at December 31, 2021 and 2020.  The return assumptions used in the valuation were based on data provided by the plan’s external investment advisors.

The following is a summary of the plan’s assets carried at fair value as of December 31 by level within the fair value hierarchy (in millions):

	December 31,
Fair Value Hierarchy	2021		2020
Level 1	$	—	$	—
Level 2		158.1		141.8
Level 3		124.2		121.0
Total fair value	$	282.3	$	262.8

The plan’s Level 2 assets consist of ownership interests in various pooled separate accounts within a life insurance carrier’s group annuity contract.  The fair value of the pooled separate accounts is determined based on the net asset value of the respective funds, which is obtained from the underwriting enterprise and determined each business day with issuances and redemptions of units of the funds made based on the net asset value per unit as determined on the valuation date.  We have not adjusted the net asset values provided by the underwriting enterprise.  There are no restrictions as to the plan’s ability to redeem its investment at the net asset

value of the respective funds as of the reporting date.  The plan’s Level 3 assets consist of pooled separate accounts within another life insurance carrier’s annuity contracts for which fair value has been determined by an independent valuation.  Due to the nature of these annuity contracts, our management makes assumptions to determine how a market participant would price these Level 3 assets.  In determining fair value, the future cash flows to be generated by the annuity contracts were estimated using the underlying benefit provisions specified in each contract, market participant assumptions and various actuarial and financial models.  These cash flows were then discounted to present value using a risk-adjusted rate that takes into consideration market based rates of return and probability-weighted present values.

The following is a reconciliation of the beginning and ending balances for the Level 3 assets of the plan measured at fair value (in millions):

	Year Ended December 31,
	2021			2020
Fair value at January 1	$	121.0		$	107.9
Settlements		(15.2	)		(2.7	)
Unrealized gain		18.4			15.8
Fair value at December 31	$	124.2		$	121.0

We were not required under the IRC to make any minimum contributions to the plan for each of the 2021, 2020 and 2019 plan years.  This level of required funding is based on the plan being frozen and the aggregate amount of our historical funding.  During 2021, 2020 and 2019 we did not make discretionary contributions to the plan.

We also have a qualified contributory savings and thrift 401(k) plan covering the majority of our domestic employees.  For eligible employees who have met the plan’s age and service requirements to receive matching contributions, we historically have matched 100% of pre-tax and Roth elective deferrals up to a maximum of 5.0% of eligible compensation, subject to federal limits on plan contributions and not in excess of the maximum amount deductible for federal income tax purposes.  Beginning in 2021, the amount matched by the company will be discretionary and annually determined by management.  Employees must be employed and eligible for the plan on the last day of the plan year to receive a matching contribution, subject to certain exceptions enumerated in the plan document.  Matching contributions are subject to a five-year graduated vesting schedule and can be funded in cash or company stock.  We expensed (net of plan forfeitures) $65.7 million, $63.6 million and $59.4 million related to the plan in 2021, 2020 and 2019, respectively.  Our board of directors authorized the use of common stock to fund our 2020 employer matching contributions to the 401(k) plan, which we funded in February 2021.  During 2021, our board of directors authorized a 5.0% employer match on eligible compensation to the 401(k) plan for the 2021 plan year and the possible use of common stock to fund our 2021 employer matching contributions, which is expected to be funded in February 2022.

We also have a nonqualified deferred compensation plan, the Supplemental Savings and Thrift Plan, for certain employees who, due to IRS rules, cannot take full advantage of our matching contributions under the 401(k) plan.  The plan permits these employees to annually elect to defer a portion of their compensation until their retirement or a future date.  Our matching contributions to this plan (up to a maximum of the lesser of a participant’s elective deferral of base salary, annual bonus and commissions or 5.0% of eligible compensation, less matching amounts contributed under the 401(k) plan) are also at the discretion of our board of directors. Matching contributions can be funded in cash or company stock.  Our board of directors has authorized the use of common stock to fund our 2021 employer matching contributions to the plan, which we plan to do in February 2022.  We expensed $8.7 million, $7.8 million and $7.1 million related to contributions made to a rabbi trust maintained under the plan in 2021, 2020 and 2019, respectively. Our board of directors authorized the use of common stock to fund our 2020 employer matching contributions to the plan, which we funded in February 2021.  During 2021, our board of directors authorized a 5.0% employer match on eligible compensation to the plan for the 2021 plan year and the possible use of common stock to fund our 2021 employer matching contributions, which is expected to be funded in February 2022.  The fair value of the assets in the plan’s rabbi trust at December 31, 2021 and 2020, including employee contributions and investment earnings, was $606.6 million and $497.3 million, respectively, and has been included in other noncurrent assets and the corresponding liability has been included in other noncurrent liabilities in the accompanying consolidated balance sheet.

We also have several foreign benefit plans, the largest of which is a defined contribution plan that provides for us to make contributions of 5.0% of eligible compensation.  In addition, the plan allows for voluntary contributions by U.K. employees, which we match 100%, up to a maximum of an additional 5.0% of eligible compensation.  Net expense for foreign retirement plans amounted to $51.8 million, $44.3 million and $39.8 million in 2021, 2020 and 2019, respectively.