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Pension and Other Postretirement Benefits (Tables)
12 Months Ended
Dec. 31, 2023
Retirement Benefits [Abstract]  
Summary of Weighted Average Assumptions Used
The following table summarizes the weighted-average assumptions used to determine the benefit obligations at December 31 for the U.S. Plans:
Pensions and Other Benefits
December 31,
20232022
Discount rate qualified4.97 %5.16 %
Discount rate nonqualified plan4.78 %4.99 %
Discount rate other benefits4.83 %5.03 %
Rate of compensation increase3.10 %3.10 %
Schedule of benefit obligations in excess of fair value of plan assets
The following table summarizes the components of our defined benefit postretirement plans and reflect a measurement date of December 31:
Pensions
Other Benefits (1)
December 31,
(in Millions)2023202220232022
Change in projected benefit obligation
Projected benefit obligation at January 1$1,044.3 $1,354.0 $11.2 $13.7 
Service cost2.6 3.6 — — 
Interest cost50.4 29.3 0.5 0.3 
Actuarial loss (gain) (2)
19.0 (256.2)(1.4)(1.7)
Foreign currency exchange rate changes and other— (0.5)— — 
Plan participants’ contributions— — 0.3 0.3 
Settlements(1.0)(2.2)— — 
Benefits paid(83.1)(83.7)(1.4)(1.4)
Projected benefit obligation at December 31$1,032.2 $1,044.3 $9.2 $11.2 
Change in plan assets
Fair value of plan assets at January 1$1,044.1 $1,372.0 $(0.1)$— 
Actual return on plan assets79.2 (245.3)— — 
Foreign currency exchange rate changes0.3 3.1 — — 
Company contributions1.2 3.5 1.2 1.0 
Plan participants’ contributions— — 0.3 0.3 
Settlements(0.4)(5.5)— — 
Benefits paid(83.1)(83.7)(1.4)(1.4)
Fair value of plan assets at December 31$1,041.3 $1,044.1 $ $(0.1)
Funded Status
U.S. plans with assets$30.7 $22.4 $— $— 
U.S. plans without assets(14.7)(14.6)(9.2)(11.3)
Non-U.S. plans with assets(1.6)(1.2)— — 
All other plans(5.3)(6.8)— — 
Net funded status of the plan (liability)$9.1 $(0.2)$(9.2)$(11.3)
Amount recognized in the consolidated balance sheets:
Pension asset (3)
$30.7 $22.4 $— $— 
Accrued benefit liability (4)
(21.6)(22.6)(9.2)(11.3)
Total$9.1 $(0.2)$(9.2)$(11.3)
____________________
(1)Refer to Note 10 to the consolidated financial statements included within this Form 10-K for information on our discontinued postretirement benefit plans.
(2)The actuarial loss in 2023 and gain in 2022 were primarily driven by the change in discount rate on the U.S. qualified plan.
(3)Recorded as "Other assets including long-term receivables, net" on the consolidated balance sheets.
(4)Recorded as "Accrued pension and other postretirement benefits, current" and "Accrued pension and other postretirement benefits, long-term" on the consolidated balance sheets.
The amounts in accumulated other comprehensive income (loss) that have not yet been recognized as components of net periodic benefit cost are as follows:
 Pensions
Other Benefits (1)
 December 31,
(in Millions)2023202220232022
Prior service (cost) credit$(0.1)$(0.3)$— $— 
Net actuarial (loss) gain(309.9)(337.6)5.3 4.9 
Accumulated other comprehensive income (loss) – pretax$(310.0)$(337.9)$5.3 $4.9 
Accumulated other comprehensive income (loss) – net of tax(229.9)(252.7)3.9 3.6 
____________________
(1)     Refer to Note 10 to the consolidated financial statements included within this Form 10-K for information on our discontinued postretirement benefit plans.
(in Millions)December 31
20232022
Projected benefit obligations$25.2 $26.2 
Accumulated benefit obligations26.1 26.2 
Fair value of plan assets3.6 3.6 
Changes in plan assets and benefit Obligations for continuing operations recognized in other comprehensive loss (income)
Other changes in plan assets and benefit obligations for continuing operations recognized in other comprehensive loss (income) are as follows:
 Pensions
Other Benefits (1)
 Year Ended December 31,
(in Millions)2023202220232022
Current year net actuarial loss (gain)$(12.2)$22.1 $(1.4)$(1.7)
Amortization of net actuarial (loss) gain(15.5)(12.4)1.0 0.8 
Amortization of prior service (cost) credit(0.1)(0.2)— — 
Settlement loss(0.1)(0.5)— — 
Total recognized in other comprehensive (income) loss, before taxes$(27.9)$9.0 $(0.4)$(0.9)
Total recognized in other comprehensive (income) loss, after taxes(22.8)7.2 (0.3)(1.1)
____________________
(1)     Refer to Note 10 to the consolidated financial statements included within this Form 10-K for information on our discontinued postretirement benefit plans.
Weighted-average assumptions used for and components of net annual benefit cost (income)
The following table summarizes the weighted-average assumptions used for and the components of net annual benefit cost (income):
 Year Ended December 31,
 Pensions
Other Benefits (1)
(in Millions, except for percentages)202320222021202320222021
Discount rate 5.16 %2.84 %2.49 %5.03 %2.39 %1.91 %
Expected return on plan assets4.75 %2.50 %2.25 %— — — 
Rate of compensation increase3.10 %3.10 %3.10 %— — — 
Components of net annual benefit cost:
Service cost$2.6$3.6$4.7$$$
Interest cost50.429.324.50.50.30.3
Expected return on plan assets(47.5)(33.1)(31.9)
Amortization of prior service cost0.10.20.2
Amortization of net actuarial and other (gain) loss15.312.412.5(0.9)(0.8)(0.8)
Recognized (gain) loss due to curtailments (2)
0.4
Recognized (gain) loss due to settlement0.51.0
Net annual benefit cost (income)$21.3$12.9$11.0$(0.4)$(0.5)$(0.5)
___________________
(1)     Refer to Note 10 to the consolidated financial statements included within this Form 10-K for information on our discontinued postretirement benefit plans.
(2)    During the year ended December 31, 2023, as a result of restructuring activities planned in connection with Project Focus, we triggered a curtailment of our U.S. pension plans. The associated curtailment expense is recorded within "Non-operating pension and postretirement charges (income)" on the consolidated statements of income (loss).
Fair Value of pension plan assets by asset class
The following tables present our fair value hierarchy for our major categories of pension plan assets by asset class. See Note 19 to the consolidated financial statements included within this Form 10-K for the definition of fair value and the descriptions of Level 1, 2 and 3 in the fair value hierarchy.
(in Millions)December 31, 2023
Quoted Prices
in Active
Markets for
Identical
Assets
(Level 1)
Significant
Other
Observable
Inputs
(Level 2)
Significant
Unobservable
Inputs
(Level 3)
Cash and short-term investments$3.0 $3.0 $— $— 
Fixed income investments:
Investment contracts114.9 — 114.9 — 
U.S. Government Securities204.6 204.6 — — 
Mutual funds13.1 13.1 — — 
Corporate debt instruments705.7 — 705.7 — 
Total assets$1,041.3 $220.7 $820.6 $ 
(in Millions)December 31, 2022Quoted Prices
in Active
Markets for
Identical
Assets
(Level 1)
Significant
Other
Observable
Inputs
(Level 2)
Significant
Unobservable
Inputs
(Level 3)
Cash and short-term investments$22.8 $22.8 $— $— 
Fixed income investments:
Investment contracts116.4 — 116.4 — 
U.S. Government Securities 207.4 207.4 — — 
Mutual funds 29.3 29.3 — — 
Corporate debt instruments668.2 — 668.2 — 
Total assets$1,044.1 $259.5 $784.6 $ 
Contributions to pension and other postretirement benefit plans
We made the following contributions to our pension and other postretirement benefit plans:
  
Year Ended December 31,
(in Millions)20232022
U.S. qualified pension plan$— $— 
U.S. nonqualified pension plan1.1 3.4 
Non-U.S. plans0.1 0.1 
Other postretirement benefits1.2 1.0 
Total$2.4 $4.5 
Estimated net future benefit payments
The following table reflects the estimated future benefit payments for our pension and other postretirement benefit plans. These estimates take into consideration expected future service, as appropriate:
Estimated Net Future Benefit Payments
(in Millions)202420252026202720282029 - 2033
Pension Benefits$88.5 $85.5 $85.3 $83.3 $81.9 $382.4 
Other Benefits1.3 1.2 1.1 1.1 1.0 3.6