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Pension and Other Postretirement Benefits | 12 Months Ended
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Jun. 30, 2018
Retirement Benefits [Abstract] |
Pension and Other Postretirement Benefits | Pension and Other Postretirement Benefits The Company provides several noncontributory defined benefit pension plans to certain employees. The plans provide defined benefits based on years of service and final average salary. In September 2016, the Company announced changes to retirement plans it offers to certain employees. The Company froze benefits accrued to eligible participants of its largest qualified defined benefit pension plan and certain non-qualified benefit plans effective December 31, 2016. The Company recognized the plan freeze during fiscal year 2017 as a curtailment, since it eliminated the accrual of defined benefits for future services for a significant number of participants. The impact of the curtailment included a one-time accelerated recognition of outstanding unamortized prior service costs of $0.5 million. The curtailment event triggered a re-measurement for the affected benefit plans as of August 31, 2016 using a weighted average discount rate of 3.57 percent. The re-measurement resulted in a reduction of accrued pension liabilities of $18.7 million. The Company made a minimum required contribution of $6.7 million and a voluntary contribution of $100.0 million during fiscal years 2018 and 2017, respectively, to its qualified defined benefit pension plans. The Company also provides other postretirement benefit plans to certain of its employees. The postretirement benefit plans consist of health care and life insurance plans. Plan assets are maintained in a Voluntary Employee Benefit Association (“VEBA”) Trust. During fiscal years 2018 and 2017, the Company funded benefit payments using assets in the VEBA Trust. In fiscal year 2016, benefit payments for these plans were funded by the Company assets. The following provides a reconciliation of benefit obligations, plan assets and funded status of the plans:
|  | Pension Plans |  | Other Postretirement Plans
($ in millions) |  | 2018 |  | 2017 |  | 2018 |  | 2017
Change in projected benefit obligation: |  |  |  |  |  |  |  |  |  |  |  |
Projected benefit obligation at beginning of year |  | $ | 1,369.1 |  |  | $ | 1,404.4 |  |  | $ | 255.1 |  |  | $ | 246.0 |
Service cost |  | 9.5 |  |  | 20.5 |  |  | 2.6 |  |  | 3.6 |
Interest cost |  | 52.1 |  |  | 50.3 |  |  | 9.5 |  |  | 9.2 |
Benefits paid |  | (89.8 | ) |  | (92.0 | ) |  | (13.0 | ) |  | (12.7 | )
Actuarial (gains) loss |  | (76.6 | ) |  | 39.3 |  |  | (12.7 | ) |  | (1.7 | )
Special termination benefits |  | 0.2 |  |  | 0.6 |  |  | — |  |  | — |
Curtailment gain |  | — |  |  | (72.6 | ) |  | — |  |  | — |
Plan amendments |  | — |  |  | 18.6 |  |  | — |  |  | 10.7 |
Projected benefit obligation at end of year |  | 1,264.5 |  |  | 1,369.1 |  |  | 241.5 |  |  | 255.1 |
Change in plan assets: |  |  |  |  |  |  |  |  |  |  |  |
Fair value of plan assets at beginning of year |  | 987.6 |  |  | 885.1 |  |  | 117.0 |  |  | 115.6 |
Actual return |  | 64.7 |  |  | 91.1 |  |  | 10.6 |  |  | 10.9 |
Benefits paid |  | (89.8 | ) |  | (92.0 | ) |  | (13.0 | ) |  | (12.7 | )
Contributions |  | 10.0 |  |  | 103.4 |  |  | 3.3 |  |  | 3.2 |
Fair value of plan assets at end of year |  | 972.5 |  |  | 987.6 |  |  | 117.9 |  |  | 117.0 |
Funded status of the plans |  | $ | (292.0 | ) |  | $ | (381.5 | ) |  | $ | (123.6 | ) |  | $ | (138.1 | )
Amounts recognized in the consolidated balance sheets: |  |  |  |  |  |  |  |  |  |  |  |
Other assets - noncurrent |  | $ | 0.1 |  |  | $ | 0.1 |  |  | $ | — |  |  | $ | — |
Accrued liabilities - current |  | (3.3 | ) |  | (3.3 | ) |  | (15.4 | ) |  | (15.5 | )
Accrued pension liabilities - noncurrent |  | (288.8 | ) |  | (378.3 | ) |  | — |  |  | — |
Accrued postretirement benefits - noncurrent |  | — |  |  | — |  |  | (108.2 | ) |  | (122.6 | )
|  | $ | (292.0 | ) |  | $ | (381.5 | ) |  | $ | (123.6 | ) |  | $ | (138.1 | )
|  | Pension Plans |  | Other Postretirement Plans
($ in millions) |  | 2018 |  | 2017 |  | 2018 |  | 2017
Amounts recognized in accumulated other comprehensive loss: |  |  |  |  |  |  |  |  |  |  |  |
Net actuarial loss |  | $ | 362.1 |  |  | $ | 451.3 |  |  | $ | 32.9 |  |  | $ | 52.2 |
Prior service cost (credit) |  | 16.2 |  |  | 18.3 |  |  | (23.1 | ) |  | (28.2 | )
Total |  | $ | 378.3 |  |  | $ | 469.6 |  |  | $ | 9.8 |  |  | $ | 24.0 |
Other changes in plan assets and benefit obligations recognized in other comprehensive loss consist of: |  |  |  |  |  |  |  |
Net actuarial gain |  | $ | (75.0 | ) |  | $ | (59.1 | ) |  | $ | (16.3 | ) |  | $ | (5.7 | )
Amortization of net loss |  | (13.5 | ) |  | (37.8 | ) |  | (2.9 | ) |  | (3.2 | )
Prior service cost |  | — |  |  | 18.6 |  |  | — |  |  | 10.7 |
Amortization of prior service (cost) benefit |  | (2.1 | ) |  | (1.8 | ) |  | 5.2 |  |  | 6.5 |
Total, before tax effect |  | $ | (90.6 | ) |  | $ | (80.1 | ) |  | $ | (14.0 | ) |  | $ | 8.3 |
Additional information: |  |  |  |  |  |  |  |  |  |  |  |
Accumulated benefit obligation for all pension plans |  | $ | 1,257.8 |  |  | $ | 1,362.8 |  |  | N/A |  |  | N/A |
The following is additional information related to plans with projected benefit obligations in excess of plan assets as of June 30, 2018 and 2017:
|  | Pension Plans |  | Other Postretirement Plans
($ in millions) |  | 2018 |  | 2017 |  | 2018 |  | 2017
Projected benefit obligation |  | $ | 1,264.4 |  |  | $ | 1,369.0 |  |  | $ | 241.5 |  |  | $ | 255.1 |
Fair value of plan assets |  | $ | 972.4 |  |  | $ | 987.4 |  |  | $ | 117.9 |  |  | $ | 117.0 |
The following additional information is for plans with accumulated benefit obligations in excess of plan assets as of June 30, 2018 and 2017:
|  | Pension Plans |  | Other Postretirement Plans
($ in millions) |  | 2018 |  | 2017 |  | 2018 |  | 2017
Accumulated benefit obligation |  | $ | 1,257.7 |  |  | $ | 1,362.7 |  |  | $ | 241.5 |  |  | $ | 255.1 |
Fair value of plan assets |  | $ | 972.4 |  |  | $ | 987.4 |  |  | $ | 117.9 |  |  | $ | 117.0 |
The components of the net periodic benefit cost related to the Company’s pension and other postretirement benefits for the years ended June 30, 2018, 2017 and 2016 are as follows:
|  | Pension Plans |  | Other Postretirement Plans
($ in millions) |  | 2018 |  | 2017 |  | 2016 |  | 2018 |  | 2017 |  | 2016
Service cost |  | $ | 9.5 |  |  | $ | 20.5 |  |  | $ | 31.2 |  |  | $ | 2.6 |  |  | $ | 3.6 |  |  | $ | 3.3 |
Interest cost |  | 52.1 |  |  | 50.3 |  |  | 58.0 |  |  | 9.5 |  |  | 9.2 |  |  | 10.4 |
Expected return on plan assets |  | (65.9 | ) |  | (65.1 | ) |  | (66.1 | ) |  | (6.9 | ) |  | (6.9 | ) |  | (7.0 | )
Amortization of net loss |  | 13.5 |  |  | 37.8 |  |  | 27.4 |  |  | 2.9 |  |  | 3.2 |  |  | 2.7 |
Amortization of prior service cost (benefit) |  | 2.1 |  |  | 1.8 |  |  | 0.4 |  |  | (5.2 | ) |  | (6.5 | ) |  | (6.5 | )
Curtailment loss |  | — |  |  | 0.5 |  |  | — |  |  | — |  |  | — |  |  | — |
Net periodic benefit costs |  | $ | 11.3 |  |  | $ | 45.8 |  |  | $ | 50.9 |  |  | $ | 2.9 |  |  | $ | 2.6 |  |  | $ | 2.9 |
The service cost component of the Company’s net pension expense, which represents the estimated cost of future pension liabilities earned associated with active employees, is included in the operating income of the business segments. The residual net pension expense, which is comprised of the expected return on plan assets, interest costs on the projected benefit obligations of the plans, and amortization of actuarial gains and losses and prior service costs, is included under the heading “Pension earnings, interest & deferrals” in the segment data presented in Note 19. During the year ended June 30, 2016, the Company offered an early retirement incentive to certain employees. As a result of the incentive, $9.4 million was paid from the Company’s qualified pension plan consisting of various personnel-related costs to cover severance payments.
Weighted-average assumptions used to determine benefit obligations at fiscal year end |  | Pension Plans |  | Other Postretirement Plans
| 2018 |  | 2017 |  | 2018 |  | 2017 |
Discount rate |  | 4.32 | % |  | 3.92 | % |  | 4.32 | % |  | 3.89 | % |
Rate of compensation increase |  | 3.44 | % |  | 3.50 | % |  | N/A |  |  | N/A |  |
Weighted-average assumptions used to determine net periodic benefit cost for the fiscal year |  |  |  |  |  |  |  |  |  |  |  |
| Pension Plans |  | Other Postretirement Plans
| 2018 |  | 2017 |  | 2016 |  | 2018 |  | 2017 |  | 2016
Discount rate |  | 3.92 | % |  | 3.91 | % |  | 4.50 | % |  | 3.89 | % |  | 3.86 | % |  | 4.50 | %
Expected long-term rate of return on plan assets |  | 6.87 | % |  | 6.88 | % |  | 6.92 | % |  | 6.25 | % |  | 6.25 | % |  | 6.25 | %
Long-term rate of compensation increase |  | 3.44 | % |  | 3.50 | % |  | 3.49 | % |  | N/A |  |  | N/A |  |  | N/A |
The following table shows the expected health care rate increase and the future rate and time at which it is expected to remain constant:
|  | June 30,
|  | 2018 |  | 2017
Assumed health care cost trend rate |  | 6.50 | % |  | 7.00 | %
Rate to which the cost trend rate is assumed to decline and remain (the ultimate trend rate) |  | 5.00 | % |  | 5.00 | %
Year that the rate reaches the ultimate trend rate |  | 2022 |  |  | 2022 |
Assumed health care cost trend rates have an effect on the amounts reported for other postretirement benefits. A one percentage point increase in the assumed health care cost trend rate would increase service and interest cost by $0.1 million and increase the postretirement benefit obligation by $2.6 million. A one percentage point decrease in the assumed health care cost trend rate would decrease service and interest cost by $0.1 million and decrease the postretirement benefit obligation by $2.3 million. Amounts in other comprehensive loss (gain) that are expected to be recognized as components of net periodic benefit cost in the year ended June 30, 2019 are:
($ in millions) |  | Pension Plans |  | Other Postretirement Plans |  | Total
Amortization of prior service cost (benefit) |  | $ | 2.1 |  |  | $ | (5.2 | ) |  | $ | (3.1 | )
Amortization of net actuarial loss |  | 10.4 |  |  | 1.7 |  |  | 12.1 |
Amortization of accumulated other comprehensive loss (gain) |  | $ | 12.5 |  |  | $ | (3.5 | ) |  | $ | 9.0 |
The Company’s U.S. pension plans’ weighted-average asset allocations at June 30, 2018 and 2017, by asset category are as follows:
|  | 2018 |  | 2017
Equity securities |  | 55.7 | % |  | 55.0 | %
Fixed income securities |  | 44.3 |  |  | 45.0 |
Total |  | 100.0 | % |  | 100.0 | %
The Company’s policy for developing a pension plan investment strategy includes the periodic development of an asset and liability study by an independent investment consultant. Management considers this study in establishing an asset allocation that is presented to and approved by the Company’s Retirement Plan Committee. Based on the current funding level, the allocation policy for the Company’s largest pension plan assets is to have approximately 60 percent in return seeking assets and 40 percent in liability matching assets. Return seeking assets include domestic and international equities and diversified loan funds. Liability matching assets include long duration bond funds. As the funding level of the plans improves in increments of 5 percent, assets will be shifted from return seeking to liability matching in increments of 4 percent as a de-risking strategy. The assets related to the Company’s other postretirement benefit plans were invested in approximately 87 percent U.S. equities and 13 percent fixed income securities as of June 30, 2018. Management establishes the expected long-term rate of return assumption by reviewing historical trends and analyzing the current and projected market conditions in relation to the plan’s asset allocation and risk management objectives. In determining the expected long-term rate of return, the Company considered historical returns for individual asset classes and the impact of active portfolio management. The fair values of the Company’s pension plan assets as of June 30, 2018 and 2017, by asset category and by the levels of inputs used to determine fair value were as follows:
|  | June 30, 2018
|  | Fair Value Measurements Using Input Type |  |  |  |
($ in millions) |  | Level 1 |  | Level 2 |  | Net Asset Value |  | Total
Short-term investments |  | $ | 2.5 |  |  | $ | 14.6 |  |  | $ | — |  |  | $ | 17.1 |
Domestic and international equities |  | 156.4 |  |  | — |  |  | — |  |  | 156.4 |
Commingled funds |  | — |  |  | — |  |  | 365.3 |  |  | 365.3 |
Limited partnerships |  | — |  |  | — |  |  | 43.3 |  |  | 43.3 |
Government agency bonds |  | 3.5 |  |  | 151.6 |  |  | — |  |  | 155.1 |
Corporate bonds |  | — |  |  | 226.3 |  |  | — |  |  | 226.3 |
Mutual funds |  | — |  |  | — |  |  | 1.8 |  |  | 1.8 |
Mortgage/asset backed securities and other |  | — |  |  | 7.2 |  |  | — |  |  | 7.2 |
|  | $ | 162.4 |  |  | $ | 399.7 |  |  | $ | 410.4 |  |  | $ | 972.5 |
|  | June 30, 2017
|  | Fair Value Measurements Using Input Type |  |  |  |
($ in millions) |  | Level 1 |  | Level 2 |  | Net Asset Value |  | Total
Short-term investments |  | $ | 9.4 |  |  | $ | 14.6 |  |  | $ | — |  |  | $ | 24.0 |
Domestic and international equities |  | 148.3 |  |  | — |  |  | — |  |  | 148.3 |
Commingled funds |  | — |  |  | — |  |  | 376.6 |  |  | 376.6 |
Limited partnerships |  | — |  |  | — |  |  | 42.3 |  |  | 42.3 |
Government agency bonds |  | 3.4 |  |  | 151.0 |  |  | — |  |  | 154.4 |
Corporate bonds |  | — |  |  | 236.2 |  |  | — |  |  | 236.2 |
Mutual funds |  | — |  |  | — |  |  | 1.8 |  |  | 1.8 |
Mortgage/asset backed securities and other |  | — |  |  | 4.0 |  |  | — |  |  | 4.0 |
|  | $ | 161.1 |  |  | $ | 405.8 |  |  | $ | 420.7 |  |  | $ | 987.6 |
The fair values of the Company’s other postretirement benefit plans as of June 30, 2018 and 2017, by asset category and by the level of inputs used to determine fair value, were as follows:
|  | June 30, 2018
|  | Fair Value Measurements Using Input Type |  |  |  |
($ in millions) |  | Level 1 |  | Level 2 |  | Net Asset Value |  | Total
Commingled fund |  | $ | — |  |  | $ | — |  |  | $ | 80.3 |  |  | $ | 80.3 |
Short-term investments |  | — |  |  | 23.0 |  |  | — |  |  | 23.0 |
Government agency bonds |  | — |  |  | 8.7 |  |  | — |  |  | 8.7 |
Corporate bonds and other |  | — |  |  | 5.4 |  |  | — |  |  | 5.4 |
Mortgage backed securities |  | — |  |  | 0.5 |  |  | — |  |  | 0.5 |
|  | $ | — |  |  | $ | 37.6 |  |  | $ | 80.3 |  |  | $ | 117.9 |
|  | June 30, 2017
|  | Fair Value Measurements Using Input Type |  |  |  |
($ in millions) |  | Level 1 |  | Level 2 |  | Net Asset Value |  | Total
Commingled fund |  | $ | — |  |  | $ | — |  |  | $ | 73.0 |  |  | $ | 73.0 |
Short-term investments |  | — |  |  | 22.4 |  |  | — |  |  | 22.4 |
Government agency bonds |  | — |  |  | 12.2 |  |  | — |  |  | 12.2 |
Corporate bonds and other |  | — |  |  | 8.2 |  |  | — |  |  | 8.2 |
Mortgage backed securities |  | — |  |  | 1.2 |  |  | — |  |  | 1.2 |
|  | $ | — |  |  | $ | 44.0 |  |  | $ | 73.0 |  |  | $ | 117.0 |
A financial instrument’s categorization within the valuation hierarchy is based upon the lowest level of input that is significant to the fair value measurement. Investments in domestic and international equities are generally valued at the closing price reported on the active market on which they are traded. Commingled funds, limited partnerships and mutual funds are valued based on the net asset value (“NAV”) established for the fund at each valuation date. The NAV is based on the value of the underlying assets owned by the fund, minus its liabilities, and then divided by the number of units/shares outstanding. Corporate and government agency bonds and other fixed income securities are valued using closing bid prices on an active market when possible, otherwise using evaluated bid prices. Cash Flows — Employer Contributions The Company made contributions to the qualified U.S. pension plans of $6.7 million, $100.0 million and $0.0 million during fiscal years 2018, 2017 and 2016, respectively. The Company currently expects to make $5.5 million in required cash pension contributions to the qualified defined benefit pension plans during fiscal year 2019. During the years ended June 30, 2018, 2017 and 2016, the Company made contributions of $3.3 million, $3.5 million and $3.2 million to other non-qualified pension plans, respectively. Estimated Future Benefit Payments The following benefit payments, which reflect expected future service, as appropriate, are expected to be paid. Pension benefits are currently paid from plan assets and other benefits are currently paid from corporate assets.
($ in millions) |  | Pension Benefits |  | Other Benefits
2019 |  | $ | 83.8 |  |  | $ | 15.4 |
2020 |  | $ | 84.6 |  |  | $ | 15.4 |
2021 |  | $ | 85.3 |  |  | $ | 15.4 |
2022 |  | $ | 85.9 |  |  | $ | 15.4 |
2023 |  | $ | 86.3 |  |  | $ | 15.3 |
2024-2028 |  | $ | 423.7 |  |  | $ | 74.6 |
Other Benefit Plans Carpenter also maintains defined contribution retirement and savings plans for substantially all domestic employees. Company contributions to the plans were $22.6 million in fiscal year 2018, $16.7 million in fiscal year 2017 and $11.8 million in fiscal year 2016.

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- Definition The entire disclosure for pension and other postretirement benefits. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -URI http://asc.fasb.org/topic&trid=2235017 + Details
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