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Employee plans
12 Months Ended
Dec. 31, 2021
Retirement Benefits [Abstract]  
Employee plans
Note 18 — Employee plans
Stock plans
Under stockholder approved stock-based plans, stock options, stock appreciation rights, restricted stock and restricted stock units may be granted to officers, directors and other key employees. At December 31, 2021, 6.8 million shares of unissued common stock of the company were available for granting under these plans.
As of December 31, 2021, the company has granted
non-qualified
stock options, restricted stock and restricted stock units under these plans. The company recognizes compensation cost, net of a forfeiture rate, in selling, general and administrative expenses, and recognizes the compensation cost for only those awards expected to vest. The company estimates the forfeiture rate based on its historical experience and its expectations about future forfeitures.
During the years ended December 31, 2021, 2020 and 2019, the company recorded $18.8 million, $14.5 million and $13.2 million of restricted stock and restricted stock unit compensation expense, respectively.
Restricted stock and restricted stock unit awards may contain time-based units, performance-based units, total shareholder return market-based units, or a combination of these units. Each performance-based and market-based unit will vest into zero to two shares depending on the degree to which the performance or market conditions are met. Compensation expense for performance-based awards is recognized as expense ratably for each installment from the date of grant until the date the restrictions lapse and is based on the fair market value at the date of grant and the probability of achievement of the specific performance-related goals. Compensation expense for market-based awards is recognized as expense ratably over the measurement period, regardless of the actual level of achievement, provided the service requirement is met. Restricted stock unit grants for the company’s directors vest upon award and compensation expense for such awards is recognized upon grant.
A summary of restricted stock and restricted stock unit (RSU) activity for the year ended December 31, 2021 follows (shares in thousands):
 
     Restricted
Stock and
RSU’s
     Weighted-
Average
Grant-Date

Fair Value
 
Outstanding at December 31, 2020
     1,726      $ 17.87  
Granted
     1,590        25.38  
Vested
     (923      16.60  
Forfeited and expired
     (269      19.02  
  
 
 
    
 
 
 
Outstanding at December 31, 2021
     2,124        22.73  
  
 
 
    
 
 
 
The aggregate weighted-average grant-date fair value of restricted stock and restricted stock units granted during the years ended December 31, 2021, 2020 and 2019 was $37.5 million, $17.4 million and $16.9 million, respectively. The fair value of restricted stock and restricted stock units with time and performance conditions is determined based on the trading price of the company’s common shares on the date of grant. The fair value of awards with market conditions is estimated using a Monte Carlo simulation with the following weighted-average assumptions.
 
Year ended December 31,
  
2021
    2020  
Weighted-average fair value of grant
  
$
40.02
 
  $ 28.33  
Risk-free interest rate
(i)
  
 
0.27
    1.35
Expected volatility
(ii)
  
 
57.08
    51.81
Expected life of restricted stock units in years
(iii)
  
 
2.84
 
    2.86  
Expected dividend yield
  
 
—  
    —  
 
(i)
 
Represents the continuously compounded semi-annual
zero-coupon
U.S. treasury rate commensurate with the remaining performance period
(ii)
 
Based on historical volatility for the company that is commensurate with the length of the performance period
(iii)
 
Represents the remaining life of the longest performance period
 
As of December 31, 2021, there was $25.0 million of total unrecognized compensation cost related to outstanding restricted stock and restricted stock units granted under the company’s plans. That cost is expected to be recognized over a weighted-average period of 2.3 years. The aggregate weighted-average grant-date fair value of restricted stock and restricted stock units vested during the years ended December 31, 2021, 2020 and 2019 was $15.3 million, $13.0 million and $14.9 million, respectively.
Common stock issued upon lapse of restrictions on restricted stock and restricted stock units are newly issued shares. In light of its tax position, the company is currently not recognizing any tax benefits from the issuance of stock upon lapse of restrictions on restricted stock and restricted stock units.
Defined contribution and compensation plans
U.S. employees are eligible to participate in an employee savings plan. Under this plan, employees may contribute a percentage of their pay for investment in various investment alternatives. The company matches 50 percent of the first 6 percent of eligible pay contributed by participants to the plan on a
before-tax
basis (subject to IRS limits). The company funds the match with cash. The charge to income related to the company match for the years ended December 31, 2021, 2020 and 2019, was $7.5 million, $8.8 million and $8.2 million, respectively.
The company has defined contribution plans in certain locations outside the United States. The charge to income related to these plans was $16.4 million, $16.2 million and $19.3 million, for the years ended December 31, 2021, 2020 and 2019, respectively.
The company has
non-qualified
compensation plans, which allow certain highly compensated employees and directors to defer the receipt of a portion of their salary, bonus and fees. Participants can earn a return on their deferred balance that is based on hypothetical investments in various investment vehicles. Changes in the market value of these investments are reflected as an adjustment to the liability with an offset to expense. As of December 31, 2021 and 2020, the liability to the participants of these plans was $10.6 million and $12.7 million, respectively. These amounts reflect the accumulated participant deferrals and earnings thereon as of that date. The company makes no contributions to the deferred compensation plans and remains contingently liable to the participants.
Retirement benefits
For the company’s more significant defined benefit pension plans, including the U.S. and U.K., accrual of future benefits under the plans has ceased. Management develops the actuarial assumptions used by its U.S. and international defined benefit pension plan obligations based upon the circumstances of each particular plan. The determination of the defined benefit pension plan obligations requires the use of estimates.
In January of 2021, the company purchased a group annuity contract for $279 million to transfer projected benefit obligations related to approximately 11,600 retirees of the company’s U.S. defined benefit pension plans. This action resulted in a
pre-tax
settlement loss of $158.0 million.
Effective May 1, 2021, the company’s primary pension plan related to its Dutch subsidiary was transferred to a multi-client circle within a multi-employer fund. This resulted in removing all of the plan’s projected benefit obligations, valued at approximately $553 million, from the company’s balance sheet. This action resulted in a
pre-tax
settlement loss of $182.5 million.
In the second quarter of 2021, the company’s Swiss subsidiary transferred its defined benefit pension plan to a multiple-employer collective foundation. This resulted in removing the projected benefit obligations related to retirees under the Swiss plan, valued at approximately $100 million, from the company’s balance sheet. The transfer required a
one-time
additional contribution of approximately $10 million to the Swiss plan in 2021. This action resulted in a
pre-tax
settlement loss of $28.8 million.
On October 14, 2021, the company purchased a group annuity contract for approximately $235 million to transfer projected benefit obligations related to approximately 6,900 retirees of the company’s U.S. defined benefit pension plans. This action resulted in a
pre-tax
settlement loss of $130.1 million.
The American Rescue Plan Act, which was signed into law in the U.S. on March 11, 2021, includes a provision for pension relief that extends the amortization period for required contributions from 7 to 15 years and provides for the stabilization of interest rates used to calculate future required contributions. As a result, the company was not required to make cash contributions to its U.S. qualified defined benefit pension plans in 2021.
In December 2020, the company completed a
lump-sum
cash-out
offer for eligible former associates who had deferred vested benefit under the company’s U.S. defined benefit pension plans to receive the value of their entire pension benefit in a
lump-sum
payment. As a result, the pension plan trust made lump sum payments to approximately 3,500 former associates of $276.0 million and the company recorded a
non-cash
pre-tax
settlement charge of $142.1 million.
 
Retirement plans’ funded status and amounts recognized in the company’s consolidated balance sheets follows:
 
     U.S. Plans      International Plans  
As of December 31,
  
2021
     2020     
2021
     2020  
Change in projected benefit obligation
           
Benefit obligation at beginning of year
  
$
4,545.3
 
   $ 4,755.6     
$
3,468.0
 
   $ 3,143.8  
Service cost
  
 
—  
 
     —       
 
3.0
 
     2.8  
Interest cost
  
 
117.6
 
     162.5     
 
36.7
 
     53.4  
Plan participants’ contributions
  
 
—  
 
     —       
 
1.0
 
     1.1  
Plan curtailment
  
 
—  
 
     —       
 
—  
 
     (1.6
Plan settlement
  
 
(513.8
     (277.3   
 
(726.8
     —    
Actuarial loss
  
 
(108.4
     253.9     
 
2.0
 
     226.5  
Benefits paid
  
 
(331.1
     (349.4   
 
(106.5
     (119.0
Foreign currency translation adjustments
  
 
—  
 
     —       
 
(63.0
     161.0  
  
 
 
    
 
 
    
 
 
    
 
 
 
Benefit obligation at end of year
  
$
3,709.6
 
   $ 4,545.3     
$
2,614.4
 
   $ 3,468.0  
  
 
 
    
 
 
    
 
 
    
 
 
 
Change in plan assets
           
Fair value of plan assets at beginning of year
  
$
3,847.8
 
   $ 3,334.2     
$
3,129.4
 
   $ 2,816.4  
Actual return on plan assets
  
 
130.4
 
     347.2     
 
134.0
 
     254.7  
Employer contribution
  
 
6.0
 
     793.1     
 
46.4
 
     33.1  
Plan participants’ contributions
  
 
—  
 
     —       
 
1.0
 
     1.1  
Plan settlement
  
 
(513.8
     (277.3   
 
(726.8
     —    
Benefits paid
  
 
(331.1
     (349.4   
 
(106.5
     (119.0
Foreign currency translation adjustments
  
 
—  
 
     —       
 
(45.9
     143.1  
  
 
 
    
 
 
    
 
 
    
 
 
 
Fair value of plan assets at end of year
  
$
3,139.3
 
   $ 3,847.8     
$
2,431.6
 
   $ 3,129.4  
  
 
 
    
 
 
    
 
 
    
 
 
 
Funded status at end of year
  
$
(570.3
   $ (697.5   
$
(182.8
   $ (338.6
  
 
 
    
 
 
    
 
 
    
 
 
 
Amounts recognized in the consolidated balance sheets consist of:
           
Prepaid postretirement assets
  
$
33.9
 
   $ 27.2     
$
125.8
 
   $ 160.3  
Other accrued liabilities
  
 
(5.9
     (6.1   
 
(0.1
     (0.2
Long-term postretirement liabilities
  
 
(598.3
     (718.6   
 
(308.5
     (498.7
  
 
 
    
 
 
    
 
 
    
 
 
 
Total funded status
  
$
(570.3
   $ (697.5   
$
(182.8
   $ (338.6
  
 
 
    
 
 
    
 
 
    
 
 
 
Accumulated other comprehensive loss, net of tax
           
Net loss
  
$
2,047.6
 
   $ 2,510.4     
$
797.6
 
   $ 1,116.9  
Prior service credit
  
$
(29.7
   $ (32.3   
$
(40.2
   $ (45.9
Accumulated benefit obligation
  
$
3,709.6
 
   $ 4,545.3     
$
2,612.7
 
   $ 3,360.4  
Information for defined benefit retirement plans with an accumulated benefit obligation in excess of plan assets follows:
 
As of December 31,
  
2021
     2020  
Accumulated benefit obligation
  
$
4,498.8
 
   $ 6,060.7  
Fair value of plan assets
  
$
3,587.7
 
   $ 4,839.5  
Information for defined benefit retirement plans with a projected benefit obligation in excess of plan assets follows:
 
As of December 31,
  
2021
     2020  
Projected benefit obligation
  
$
4,500.5
 
   $ 6,063.0  
Fair value of plan assets
  
$
3,587.7
 
   $ 4,839.5  
 
Net periodic pension cost (income) includes the following components:
 
     U.S. Plans     International Plans  
Year ended December 31,
  
2021
    2020     2019    
2021
    2020     2019  
Service cost
(i)
  
$
—  
 
  $ —       $ —      
$
3.0
 
  $ 2.8     $ 2.8  
Interest cost
  
 
117.6
 
    162.5       197.5    
 
36.7
 
    53.4       68.3  
Expected return on plan assets
  
 
(199.8
    (208.6     (218.2  
 
(81.6
    (90.6     (104.6
Amortization of prior service credit
  
 
(2.5
    (2.5     (2.5  
 
(2.8
    (2.5     (2.5
Recognized net actuarial loss
  
 
135.6
 
    135.5       116.6    
 
48.3
 
    43.2       34.2  
Curtailment gain
  
 
—  
 
    —         —      
 
—  
 
    —         (0.1
Settlement loss
  
 
288.1
 
    142.1       —      
 
211.3
 
    —         1.2  
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
Net periodic pension cost (income)
  
$
339.0
    $ 229.0     $ 93.4    
$
214.9
 
  $ 6.3     $ (0.7
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
 
(i)
 
Service cost is reported in cost of revenue and selling, general and administrative expenses. All other components of net periodic pension cost are reported in other (expense), net in the consolidated statements of income (loss).
Management’s significant assumption used in the determination of the defined benefit pension plan obligations, and settlement losses with respect to the U.S. pension plans, is the discount rate. Weighted-average assumptions used to determine net periodic pension cost were as follows:
 
     U.S. Plans     International Plans  
Year ended December 31,
  
2021
    2020     2019    
2021
    2020     2019  
Discount rate
  
 
2.85
    3.53     4.50  
 
1.23
    1.82     2.55
Expected long-term rate of return on assets
  
 
6.07
    6.50     6.80  
 
3.30
    3.50     4.18
Weighted-average assumptions used to determine benefit obligations at December 31 were as follows:
 
Discount rate
  
 
3.18
    2.85     3.53  
 
1.73
    1.23     1.82
The company’s investment policy targets and ranges for each asset category are as follows:
 
     U.S.     International  
Asset Category
   Target     Range     Target     Range  
Equity securities
     52    
47-57
    18    
15-20
Debt securities
     34    
29-39
    62    
57-66
Cash
     0     0-5     0     0-5
Other
     14    
9-19
    20    
17-24
The company periodically reviews its asset allocation, taking into consideration plan liabilities, local regulatory requirements, plan payment streams and then-current capital market assumptions. The actual asset allocation for each plan is monitored at least quarterly, relative to the established policy targets and ranges. If the actual asset allocation is close to or out of any of the ranges, a review is conducted. Rebalancing will occur toward the target allocation, with due consideration given to the liquidity of the investments and transaction costs.
The objectives of the company’s investment strategies are as follows: (a) to provide a total return that, over the long term, increases the ratio of plan assets to liabilities by maximizing investment return on assets, at a level of risk deemed appropriate, (b) to maximize return on assets by investing in equity securities in the U.S. and for international plans by investing in appropriate asset classes, subject to the constraints of each plan’s asset allocation targets, as discussed above, design and local regulations, (c) to diversify investments within asset classes to reduce the impact of losses in single investments, and (d) for the U.S. plans to invest in compliance with the Employee Retirement Income Security Act of 1974 (ERISA), as amended and any subsequent applicable regulations and laws, and for international plans to invest in a prudent manner in compliance with local applicable regulations and laws.
The company sets the expected long-term rate of return based on the expected long-term return of the various asset categories in which it invests. The company considered the current expectations for future returns and the actual historical returns of each asset class. Also, since the company’s investment policy is to actively manage certain asset classes where the potential exists to outperform the broader market, the expected returns for those asset classes were adjusted to reflect the expected additional returns.
 
In 2022, the company expects to make cash contributions of $40.2 million, primarily for international defined benefit pension plans.
As of December 31, 2021, the following benefit payments are expected to be paid from the defined benefit pension plans:
 
Year
   U.S.      International  
2022
   $ 308.6      $ 87.9  
2023
     302.4        90.9  
2024
     295.5        94.4  
2025
     287.6        96.1  
2026
     279.1        99.6  
2027 - 2030
     1,240.5        538.2  
Other postretirement benefits
A reconciliation of the benefit obligation, fair value of the plan assets and the funded status of the postretirement benefit plans follows:
 
As of December 31,
  
2021
     2020  
Change in accumulated benefit obligation
     
Benefit obligation at beginning of year
  
$
80.2
 
   $ 95.7  
Service cost
  
 
0.4
 
     0.5  
Interest cost
  
 
1.8
 
     4.4  
Plan participants’ contributions
  
 
1.7
 
     2.3  
Amendments
  
 
1.2
 
     —    
Actuarial loss (gain)
  
 
1.8
 
     (13.8
Benefits paid
  
 
(5.9
     (8.8
Foreign currency translation and other adjustments
  
 
(0.1
     (0.1
  
 
 
    
 
 
 
Benefit obligation at end of year
  
$
81.1
 
   $ 80.2  
  
 
 
    
 
 
 
Change in plan assets
     
Fair value of plan assets at beginning of year
  
$
6.0
 
   $ 6.9  
Actual return on plan assets
  
 
(0.2
     (0.4
Employer contributions
  
 
4.0
 
     6.0  
Plan participants’ contributions
  
 
1.7
 
     2.3  
Benefits paid
  
 
(5.9
     (8.8
  
 
 
    
 
 
 
Fair value of plan assets at end of year
  
$
5.6
 
   $ 6.0  
  
 
 
    
 
 
 
Funded status at end of year
  
$
(75.5
   $ (74.2
  
 
 
    
 
 
 
Amounts recognized in the consolidated balance sheets consist of:
     
Other accrued liabilities
  
$
(6.1
   $ (5.4
Long-term postretirement liabilities
  
 
(69.4
     (68.8
  
 
 
    
 
 
 
Total funded status
  
$
(75.5
   $ (74.2
  
 
 
    
 
 
 
Accumulated other comprehensive loss, net of tax
     
Net loss (income)
  
$
1.4
 
   $ (3.0
Prior service credit
  
 
(2.1
     (4.9
Net periodic postretirement benefit cost follows:
 
Year ended December 31,
  
2021
     2020      2019  
Service cost
(i)
  
$
0.4
 
   $ 0.5      $ 0.5  
Interest cost
  
 
1.8
 
     4.4        4.8  
Expected return on assets
  
 
(0.3
     (0.4      (0.4
Amortization of prior service cost
  
 
(1.7
     (1.6      (1.7
Recognized net actuarial (gain) loss
  
 
(2.1
     1.0        0.7  
  
 
 
    
 
 
    
 
 
 
Net periodic benefit cost
  
$
(1.9
   $ 3.9      $ 3.9  
  
 
 
    
 
 
    
 
 
 
 
(i)
 
Service cost is reported in selling, general and administrative expenses. All other components of net periodic benefit cost are reported in other (expense), net in the consolidated statements of income (loss).
 
Weighted-average assumptions used to determine net periodic postretirement benefit cost were as follows:
 
Year ended December 31,
  
2021
    2020     2019  
Discount rate
  
 
2.21
    5.13     5.67
Expected return on plan assets
  
 
5.50
    5.50     5.50
Weighted-average assumptions used to determine benefit obligation at December 31 were as follows:
 
Year ended December 31,
  
2021
    2020     2019  
Discount rate
  
 
2.70
    2.21     5.13
The company reviews its asset allocation periodically, taking into consideration plan liabilities, plan payment streams and then-current capital market assumptions. The company sets the long-term expected return on asset assumption, based principally on the long-term expected return on debt securities. These return assumptions are based on a combination of current market conditions, capital market expectations of third-party investment advisors and actual historical returns of the asset classes. In 2022, the company expects to contribute approximately $6 million to its postretirement benefit plans.
 
Assumed health care cost trend rates at December 31,
  
2021
    2020  
Health care cost trend rate assumed for next year
  
 
6.5
    5.4
Rate to which the cost trend rate is assumed to decline (the ultimate trend rate)
  
 
4.5
    4.5
Year that the rate reaches the ultimate trend rate
  
 
2033
 
    2025  
As of December 31, 2021, the following benefits are expected to be paid from the company’s postretirement plans:
 
Year
   Expected
Payments
 
2022
   $ 7.1  
2023
     6.7  
2024
     6.2  
2025
     5.7  
2026
     5.3  
2027 - 2031
     21.1  
 
The following provides a description of the valuation methodologies and the levels of inputs used to measure fair value, and the general classification of investments in the company’s U.S. and international defined benefit pension plans, and the company’s other postretirement benefit plan.
Level 1 – These investments include cash, common stocks, real estate investment trusts, exchange traded funds, futures and options and U.S. government securities. These investments are valued using quoted prices in an active market. Payables, receivables and cumulative futures contracts variation margin received from brokers are also included as Level 1 investments and are valued at face value.
Level 2 – These investments include the following:
Pooled Funds – These investments are comprised of money market funds and fixed income securities. The money market funds are valued using the readily determinable fair value (RDFV) provided by trustees of the funds. The fixed income securities are valued based on quoted prices for identical or similar investments in markets that may not be active.
Commingled Funds – These investments are comprised of debt, equity and other securities and are valued using the RDFV provided by trustees of the funds. The fair value per share for these funds are published and are the basis for current transactions.
Other Fixed Income – These investments are comprised of corporate and government fixed income investments and asset and mortgage-backed securities for which there are quoted prices for identical or similar investments in markets that may not be active.
Derivatives – These investments include forward exchange contracts and options, which are traded on an active market, but not on an exchange; therefore, the inputs may not be readily observable. These investments also include fixed income futures and other derivative instruments.
Level 3 – These investments include the following:
Insurance Contracts – These investments are insurance contracts which are carried at book value, are not publicly traded and are reported at a fair value determined by the insurance provider.
Certain investments are valued using net asset value (NAV) as a practical expedient. These investments may not be redeemable on a daily basis and may have redemption notice periods of up to 120 days. These investments include the following:
Commingled Funds – These investments are comprised of debt, equity and other securities.
Private Real Estate and Private Equity – These investments represent interests in limited partnerships which invest in privately-held companies or privately-held real estate or other real assets. Net asset values are developed and reported by the general partners that manage the partnerships. These valuations are based on property appraisals, utilization of market transactions that provide valuation information for comparable companies, discounted cash flows, and other methods. These valuations are reported quarterly and adjusted as necessary at year end based on cash flows within the most recent period.
 
The following table sets forth by level, within the fair value hierarchy, the plans’ assets (liabilities) at fair value at December 31, 2021.
 
     U.S. Plans      International Plans  
As of December 31, 2021
   Fair
Value
    Level 1     Level 2     Level 3      Fair
Value
     Level 1      Level 2      Level 3  
Pension plans
                    
Equity Securities
                    
Common Stocks
  
$
654.3
 
 
$
652.4
 
 
$
1.9
 
 
$
—  
 
  
$
—  
 
  
$
—  
 
  
$
—  
 
  
$
—  
 
Commingled Funds
  
 
398.9
 
   
 
398.9
 
    
 
34.1
 
     
 
34.1
 
  
Debt Securities
                    
U.S. Govt. Securities
  
 
413.2
 
 
 
413.2
 
               
Other Fixed Income
  
 
479.3
 
   
 
479.3
 
    
 
3.0
 
     
 
3.0
 
  
Insurance Contracts
           
 
110.2
 
        
 
110.2
 
Commingled Funds
  
 
525.2
 
   
 
525.2
 
    
 
383.8
 
     
 
383.8
 
  
Real Estate
                    
Real Estate Investment Trusts
  
 
154.1
 
 
 
154.1
 
               
Other
                    
Derivatives
(i)
  
 
(53.7
 
 
5.8
 
 
 
(59.5
             
Commingled Funds
           
 
390.0
 
     
 
390.0
 
  
Pooled Funds
  
 
108.4
 
   
 
108.4
 
             
Cumulative futures contracts variation margin paid to brokers
  
 
(5.8
 
 
(5.8
               
Cash
  
 
0.2
 
 
 
0.2
 
      
 
28.7
 
  
 
28.7
 
     
Receivables
  
 
15.7
 
 
 
15.7
 
               
Payables
  
 
(1.1
 
 
(1.1
               
  
 
 
   
 
 
   
 
 
   
 
 
    
 
 
    
 
 
    
 
 
    
 
 
 
Total plan assets in fair value hierarchy
  
$
2,688.7
 
 
$
1,234.5
 
 
$
1,454.2
 
 
$
—  
 
  
$
949.8
 
  
$
28.7
 
  
$
810.9
 
  
$
110.2
 
  
 
 
   
 
 
   
 
 
   
 
 
    
 
 
    
 
 
    
 
 
    
 
 
 
Plan assets measured using NAV as a practical expedient
(ii):
                    
Commingled Funds
                    
Equity
  
$
—  
 
        
$
404.5
 
        
Debt
  
 
78.6
 
        
 
1,077.3
 
        
Other
  
 
112.5
 
                 
Private Real Estate
  
 
234.2
 
                 
Private Equity
  
 
25.3
 
                 
  
 
 
          
 
 
          
Total pension plan assets
  
$
3,139.3
 
        
$
2,431.6
 
        
  
 
 
          
 
 
          
Other postretirement plans
                    
Insurance Contracts
  
$
5.6
 
     
$
5.6
 
           
 
(i)
 
Level 1 derivatives represent unrealized appreciation or depreciation on open futures contracts. The value of open futures contracts includes derivatives and the cumulative futures contracts variation margin paid to or received from brokers.
(ii)
 
Investments measured at fair value using NAV as a practical expedient have not been classified in the fair value hierarchy. The fair value amounts presented in this table for these investments are included to permit reconciliation of the fair value hierarchy to the total plan assets.
 
The following table sets forth by level, within the fair value hierarchy, the plans’ assets (liabilities) at fair value at December 31, 2020.
 
     U.S. Plans      International Plans  
As of December 31, 2020
   Fair
Value
    Level 1     Level 2     Level 3      Fair
Value
    Level 1     Level 2      Level 3  
Pension plans
                  
Equity Securities
                  
Common Stocks
   $ 774.1     $ 771.2     $ 2.9     $ —        $ —       $ —       $ —        $ —    
Commingled Funds
     640.6         640.6          153.4         153.4     
Debt Securities
                  
U.S. Govt. Securities
     388.5       388.5                
Other Fixed Income
     589.9         589.9          125.8         125.8     
Insurance Contracts
              127.5            127.5  
Commingled Funds
     689.9         689.9          471.2         471.2     
Real Estate
                  
Real Estate Investment Trusts
     112.1       112.1            2.0         2.0     
Other
                  
Derivatives
(i)
     (67.3     5.0       (72.3        20.5         20.5     
Commingled Funds
              381.4         381.4     
Pooled Funds
     233.4         233.4          178.0         178.0     
Cumulative futures contracts variation margin received from brokers
     (1.1     (1.1              
Cash
     21.8       21.8            111.7       111.7       
Receivables
     28.8       28.8            2.1       2.1       
Payables
     (7.3     (7.3          (20.7     (20.7     
  
 
 
   
 
 
   
 
 
   
 
 
    
 
 
   
 
 
   
 
 
    
 
 
 
Total plan assets in fair value hierarchy
   $ 3,403.4     $ 1,319.0     $ 2,084.4     $ —        $ 1,552.9     $ 93.1     $ 1,332.3      $ 127.5  
  
 
 
   
 
 
   
 
 
   
 
 
    
 
 
   
 
 
   
 
 
    
 
 
 
Plan assets measured using NAV as a practical expedient
(ii):
                  
Commingled Funds
                  
Equity
   $ —              $ 429.9         
Debt
     121.7              1,067.4         
Other
     104.2              27.4         
Private Real Estate
     208.0              51.8         
Private Equity
     10.5                  
  
 
 
          
 
 
        
Total pension plan assets
   $ 3,847.8            $ 3,129.4         
  
 
 
          
 
 
        
Other postretirement plans
                  
Insurance Contracts
   $ 6.0         $ 6.0            
 
(i)
 
Level 1 derivatives represent unrealized appreciation or depreciation on open futures contracts. The value of open futures contracts includes derivatives and the cumulative futures contracts variation margin received from brokers.
(ii)
 
Investments measured at fair value using NAV as a practical expedient have not been classified in the fair value hierarchy. The fair value amounts presented in this table for these investments are included to permit reconciliation of the fair value hierarchy to the total plan assets.
 
The following table sets forth a summary of changes in the fair value of the plans’ Level 3 assets for the year ended December 31, 2021.
 
     January 1,
2021
     Realized
gains
(losses)
    Purchases
or
acquisitions
     Sales
or
dispositions
    Currency and
unrealized
gains (losses)
relating to
instruments
still held at
December 31,
2021
    December 31,
2021
 
U.S. plans
              
Other postretirement plans
              
Insurance Contracts
  
$
6.0
 
  
$
(0.1
 
$
—  
 
  
$
(0.3
 
$
—  
 
 
$
5.6
 
International pension plans
              
Insurance Contracts
  
$
127.5
 
  
$
—  
 
 
$
36.1
 
  
$
(48.7
 
$
(4.7
 
$
110.2
 
The following table sets forth a summary of changes in the fair value of the plans’ Level 3 assets for the year ended December 31, 2020.
 
     January 1,
2020
     Realized
gains
(losses)
    Purchases
or
acquisitions
     Sales
or
dispositions
    Currency and
unrealized
gains (losses)
relating to
instruments
still held at
December 31,
2020
     December 31,
2020
 
U.S. plans
               
Other postretirement plans
               
Insurance Contracts
   $ 6.9      $ (0.4   $ —        $ (0.5   $ —        $ 6.0  
International pension plans
               
Insurance Contracts
   $ 123.1      $ —       $ 4.1      $ (11.5   $ 11.8      $ 127.5  
The following table presents additional information about plan assets valued using the net asset value as a practical expedient within the fair value hierarchy table.
 
     2021      2020  
     Fair Value      Unfunded
Commit-
ments
     Redemption
Frequency
     Redemption
Notice
Period
Range
     Fair Value      Unfunded
Commit-
ments
     Redemption
Frequency
     Redemption
Notice
Period
Range
 
U.S. plans
                       
Commingled Funds
                       
Debt
  
$
78.6
 
  
$
—  
 
     Monthly        45 days      $ 121.7      $ —          Monthly        45 days  
Other
  
 
112.5
 
  
 
—  
 
     Monthly        5 days        104.2        —          Monthly        5 days  
Private Real Estate
(i)
  
 
234.2
 
  
 
—  
 
     Quarterly        60-90 days        208.0        15.7        Quarterly        60-90 days  
Private Equity
(ii)
  
 
25.3
 
  
 
28.6
 
           10.5        20.9        
  
 
 
    
 
 
          
 
 
    
 
 
       
Total
  
$
450.6
 
  
$
28.6
 
         $ 444.4      $ 36.6        
  
 
 
    
 
 
          
 
 
    
 
 
       
International pension plans
                       
Commingled Funds
                       
Equity
  
$
404.5
 
  
$
—  
 
     Weekly       
Up to 2
days
 
 
   $ 429.9      $ —          Weekly       
Up to 2
days
 
 
Debt
  
 
1,077.3
 
  
 
138.9
 
    

Weekly,
Monthly,
Quarterly
 
 
 
    
Up to 120
days
 
 
     1,067.4        86.2       


Weekly,
Bimonthly,
Monthly,
Quarterly
 
 
 
 
    
Up to 120
days
 
 
Other
  
 
—  
 
  
 
—  
 
           27.4        —          Monthly       
Up to 30
days
 
 
Private Real Estate
  
 
—  
 
  
 
—  
 
           51.8        —          Monthly       
Up to 90
days
 
 
  
 
 
    
 
 
          
 
 
    
 
 
       
Total
  
$
1,481.8
 
  
$
138.9
 
         $ 1,576.5      $ 86.2        
  
 
 
    
 
 
          
 
 
    
 
 
       
 
(i)
 
Includes investments in private real estate funds. The funds invest in U.S. real estate and allow redemptions quarterly, though queues, restrictions and gates may extend the period. A redemption has been requested from one fund, which has a redemption queue with estimates of full receipt of three to four years.
(ii)
 
Includes investments in limited partnerships, which invest primarily in secondary markets and private credit. The investments can never be redeemed.