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Benefit Plans (Tables)
 12 Months Ended
Dec. 31, 2020
Retirement Benefits [Abstract]  
Reconciliations of Benefit Obligations, Plan Assets of Pension Plans and Funded Status of Plans
The following tables present reconciliations of plan benefit obligations, fair value of plan assets and the funded status of pension plans and other post-retirement plans as of and for the years ended December 31, 2020 and 2019:
 Pension plansOther post-retirement
plans
In millions2020201920202019
Change in benefit obligations
Benefit obligation beginning of year
$112.1 $277.9 $14.6 $14.9 
Service cost3.3 2.6 — — 
Interest cost2.9 7.3 0.4 0.6 
Settlements— (1.5)— — 
Actuarial loss9.3 8.0 0.1 2.0 
Foreign currency translation1.4 0.1 — — 
Benefits paid(8.2)(182.3)(1.3)(2.9)
Benefit obligation end of year$120.8 $112.1 $13.8 $14.6 
Change in plan assets
Fair value of plan assets beginning of year
$31.0 $180.7 $— $— 
Actual return on plan assets3.0 16.0 — — 
Company contributions7.1 18.0 1.3 2.9 
Settlements— (1.5)— — 
Foreign currency translation0.8 0.1 — — 
Benefits paid(8.2)(182.3)(1.3)(2.9)
Fair value of plan assets end of year
$33.7 $31.0 $— $— 
Funded status
Benefit obligations in excess of the fair value of plan assets
$(87.1)$(81.1)$(13.8)$(14.6)
Amounts Recognized in Consolidated Balance Sheets
Amounts recorded in the Consolidated Balance Sheets were as follows:
 Pension plansOther post-retirement
plans
In millions2020201920202019
Current liabilities$(5.6)$(5.3)$(1.5)$(1.7)
Non-current liabilities(81.5)(75.8)(12.3)(12.9)
Benefit obligations in excess of the fair value of plan assets
$(87.1)$(81.1)$(13.8)$(14.6)
Pension Plans with an Accumulated Benefit Obligation or Projected Benefit Obligation in Excess of Plan Assets
Information for pension plans with an accumulated benefit obligation or projected benefit obligation in excess of plan assets as of December 31 was as follows:
 Projected benefit obligation
exceeds the fair value
of plan assets		Accumulated benefit  obligation
exceeds the fair value of
plan assets
In millions2020201920202019
Projected benefit obligation$120.8 $111.7 $120.8 $111.7 
Fair value of plan assets33.7 30.4 33.7 30.4 
Accumulated benefit obligationN/AN/A119.3 107.1 
Components of Net Periodic Benefit Cost
Components of net periodic benefit expense for our pension plans for the years ended December 31 were as follows:
In millions202020192018
Service cost$3.3 $2.6 $4.1 
Interest cost2.9 7.3 11.5 
Expected return on plan assets(0.8)(3.9)(7.6)
Net actuarial loss (gain)6.8 (4.1)5.2 
Net periodic benefit expense$12.2 $1.9 $13.2 
Weighted-Average Assumptions used to Determine Domestic Benefit Obligations and Domestic Net Periodic Benefit Cost
The following table provides the weighted-average assumptions used to determine benefit obligations and net periodic benefit cost as they pertain to our pension and other post-retirement plans.
 Pension plansOther post-retirement
plans
202020192018202020192018
Benefit obligation assumptions (1)
Discount rate1.74 %2.68 %3.73 %1.77 %2.81 %3.95 %
Rate of compensation increase
3.62 %3.68 %3.77 %N/AN/AN/A
Net periodic benefit expense assumptions
Discount rate2.68 %3.70 %4.00 %2.81 %3.95 %3.40 %
Expected long-term return on plan assets
3.32 %4.37 %4.17 %N/AN/AN/A
Rate of compensation increase
3.68 %3.72 %3.96 %N/AN/AN/A

(1) The benefit obligation for the Salaried Plan as of December 31, 2018 was determined using assumptions reflecting the termination of the plan. As a result, the 2018 weighted-average assumptions for the pension plans reflected in the table above do not include the Salaried Plan.
Assumed Health Care Cost Trend Rates
The assumed healthcare cost trend rates for other post-retirement plans as of December 31 were as follows:
20202019
Healthcare cost trend rate assumed for following year5.4 %5.8 %
Rate to which the cost trend rate is assumed to decline (the ultimate trend rate)4.4 %4.4 %
Year the cost trend rate reaches the ultimate trend rate20382038
Actual Overall Asset Allocation for U.S. And Non-U.S. Plans as Compared to Investment Policy Goals
Our actual overall asset allocation for our pension plans as compared to our investment policy goals as of December 31 was as follows:
 ActualTarget
2020201920202019
Fixed income70 %70 %71 %72 %
Alternative30 %29 %29 %28 %
Cash— %1 %— %— %
Plan Assets Using Fair Value Hierarchy
The fair values of our pension plan assets and their respective levels in the fair value hierarchy as of December 31, 2020 and December 31, 2019 were as follows:
 December 31, 2020
In millionsLevel 1Level 2Level 3Total
Cash and cash equivalents$0.1 $— $— $0.1 
Other investments— — 10.0 10.0 
Total investments at fair value$0.1 $— $10.0 $10.1 
Investments measured at NAV23.6 
Total$33.7 
 December 31, 2019
In millionsLevel 1Level 2Level 3Total
Cash and cash equivalents$0.4 $— $— $0.4 
Other investments— — 8.9 8.9 
Total investments at fair value$0.4 $— $8.9 $9.3 
Investments measured at NAV21.7 
Total$31.0 
Expected Future Service to Be Paid by Plans The following benefit payments, which reflect expected future service or payout from termination, as appropriate, are expected to be paid by the plans in each of the next five fiscal years and in the aggregate for the five fiscal years thereafter are as follows:
In millionsPension plansOther post-
retirement
plans
2021$7.0 $1.5 
20227.2 1.4 
20237.4 1.3 
20247.6 1.2 
20257.5 1.1 
2026 - 203036.0 4.3