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Employee Benefit Plans (Tables)
12 Months Ended
Dec. 31, 2020
Retirement Benefits [Abstract]  
Summary of Pension Obligations And Funded Status
A summary of our pension obligations and funded status as of December 31 is as follows:
202020192018
Change in benefit obligation   
Benefit obligation, beginning of period$259.1 $219.8 $241.5 
Service cost5.1 4.0 3.9 
Interest cost7.2 8.5 8.0 
Plan participants’ contributions.5.5.5
Actuarial loss (gain)1
27.7 36.7 (20.3)
Benefits paid(14.2)(13.8)(13.4)
Plan amendments(.4)1.9 1.9 
Foreign currency exchange rate changes1.5 1.5 (2.3)
Benefit obligation, end of period286.5 259.1 219.8 
Change in plan assets
Fair value of plan assets, beginning of period201.5 181.8 185.7 
Actual return (loss) on plan assets24.1 30.0 (10.6)
Employer contributions2.2 1.5 21.8 
Plan participants’ contributions.5 .5 .5 
Benefits paid(14.2)(13.8)(13.4)
Foreign currency exchange rate changes1.2 1.5 (2.2)
Fair value of plan assets, end of period215.3 201.5 181.8 
Net funded status$(71.2)$(57.6)$(38.0)
Funded status recognized in the Consolidated Balance Sheets 
Other assets—sundry$.9 $1.4 $1.6 
Other current liabilities(.4)(.4)(.4)
Other long-term liabilities(71.7)(58.6)(39.2)
Net funded status$(71.2)$(57.6)$(38.0)

1 Year-over-year fluctuations in "Actuarial loss (gain)" are primarily driven by changes in the weighted average discount rate assumptions.
Schedule of Accumulated Other Comprehensive Income
Amounts and activity included in accumulated other comprehensive income associated with pensions are reflected below:
December 31, 20192020
Amortization
2020
Net
Actuarial
Loss
2020
Foreign
Currency
Exchange
Rates
Change
2020
Income
Tax
Change
December 31, 2020
Net loss (gain) (before tax)$70.2 $(4.0)$15.5 $.3 $— $82.0 
Deferred income taxes(19.0)— — — (2.8)(21.8)
Accumulated other comprehensive (income) loss (net of tax)$51.2 $(4.0)$15.5 $.3 $(2.8)$60.2 
Components of Net Pension (Expense) Benefit
Components of net pension (expense) income for the years ended December 31 were as follows:
202020192018
Service cost$(5.1)$(4.0)$(3.9)
Interest cost(7.2)(8.5)(8.0)
Expected return on plan assets11.9 11.3 11.9 
Recognized net actuarial loss(4.0)(2.9)(2.6)
Prior service cost.4 (1.7)— 
Net pension expense$(4.0)$(5.8)$(2.6)
Weighted average assumptions for pension costs:
Discount rate used in net pension costs2.8 %3.9 %3.4 %
Rate of compensation increase used in pension costs3.4 %3.0 %3.0 %
Expected return on plan assets6.1 %6.4 %6.4 %
Weighted average assumptions for benefit obligation:
Discount rate used in benefit obligation2.1 %2.8 %3.9 %
Rate of compensation increase used in benefit obligation3.5 %3.4 %3.0 %
Schedule of Fair Value Of Pension Plan Assets
Presented below are our major categories of investments for the periods presented:
 Year Ended December 31, 2020Year Ended December 31, 2019
 Level 1Level 2Level 3
Assets Measured at NAV1
TotalLevel 1Level 2Level 3
Assets Measured at NAV1
Total
Mutual and pooled funds          
Fixed income$35.3 $16.5 $ $ $51.8 $40.7 $— $— $— $40.7 
Equities114.0 10.4   124.4 121.7 — — — 121.7 
Stable value funds 30.9   30.9 — 30.2 — — 30.2 
Money market funds, cash and other   8.2 8.2 — — — 8.9 8.9 
Total investments at fair value$149.3 $57.8 $ $8.2 $215.3 $162.4 $30.2 $— $8.9 $201.5 
 
1Certain investments that are measured at fair value using the net asset value (NAV) per share (or its equivalent) practical expedient have not been classified in the fair value hierarchy.
Schedule of Allocation of Plan Assets The aggregate allocation of these investments is as follows:
20202019
Asset Category 
Equity securities58 %60 %
Debt securities24 20 
Stable value funds14 15 
Other, including cash4 
Total100 %100 %
Schedule of Estimated Benefit Payments
Estimated benefit payments expected over the next 10 years are as follows:
2021$13.0 
202213.5 
202314.1 
202414.8 
202515.0 
2026-203073.5 
Schedule of Costs of Retirement Plans
Total expense for defined contribution plans was as follows: 
    
202020192018
401(k) Plan$6.8 $6.9 $2.2 
Other defined contribution plans4.9 5.3 4.1 
$11.7 $12.2 $6.3