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Pension and Other Post-Retirement Benefits | 12 Months Ended
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Dec. 31, 2014
Compensation and Retirement Disclosure [Abstract] |
Pension and Other Post-Retirement Benefits | We maintain both funded and unfunded noncontributory defined benefit pension plans covering our domestic employees and the employees of our subsidiaries. We also have a funded noncontributory defined benefit pension plan related to a former business in the United Kingdom that has no active employees. The plans base benefits payable on years of service and/or final average salary. We base our funding policies for the pension plans on actuarially determined cost methods allowable under IRS regulations and statutory requirements in the UK. In addition to the pension plans, we have other post-retirement plans that provide health care, life insurance, and other benefits for certain retired domestic employees who meet established criteria. Most domestic employees that retire with immediate benefits under our pension plan are eligible for health care and life insurance benefits. The other post-retirement plans are either contributory or noncontributory, depending on various factors. We use a December 31 measurement date for all of our plans. The following tables show pension obligations, plan assets, and other post-retirement obligations as of December 31 (in millions):
| 2014 Pension Benefits |  | 2013 Pension Benefits |  | 2014 Retiree Health and Life |  | 2013 Retiree Health and Life
Change in Benefit Obligation |  |  |  |  |  |  |
Benefit obligation at beginning of year | $ | 442.7 |  |  | $ | 473.8 |  |  | $ | 40.4 |  |  | $ | 48.1 |
Service cost | 5.9 |  |  | 6.7 |  |  | 0.1 |  |  | 0.2 |
Interest cost | 20.7 |  |  | 18.4 |  |  | 1.6 |  |  | 1.6 |
Actuarial loss (gain) | 67.0 |  |  | (26.8 | ) |  | 2.6 |  |  | (6.2 | )
Benefits paid | (31.2 | ) |  | (30.3 | ) |  | (3.9 | ) |  | (3.3 | )
Effect of foreign exchange rate changes | (2.4 | ) |  | 0.9 |  |  | — |  |  | — |
Benefit obligation at end of year | $ | 502.7 |  |  | $ | 442.7 |  |  | $ | 40.8 |  |  | $ | 40.4 |
Change in Fair Value of Plan Assets |  |  |  |  |  |  |
Plan assets at beginning of year | 447.8 |  |  | 409.1 |  |  | — |  |  | — |
Actual return on plan assets | 40.3 |  |  | 65.9 |  |  | — |  |  | — |
Effect of exchange rate changes | (2.4 | ) |  | 0.7 |  |  | — |  |  | — |
Company contributions | 2.4 |  |  | 2.4 |  |  | 3.9 |  |  | 3.3 |
Benefits paid | (31.2 | ) |  | (30.3 | ) |  | (3.9 | ) |  | (3.3 | )
Plan assets at end of year | $ | 456.9 |  |  | $ | 447.8 |  |  | $ | — |  |  | $ | — |
Funded Status at end of year | $ | (45.8 | ) |  | $ | 5.1 |  |  | $ | (40.8 | ) |  | $ | (40.4 | )
Amount Recognized |  |  |  |  |  |  |
Other liabilities (assets), net | $ | (45.8 | ) |  | $ | 5.1 |  |  | $ | (40.8 | ) |  | $ | (40.4 | )
Accumulative other comprehensive loss: |  |  |  |  |  |  |
Net actuarial loss | 170.9 |  |  | 127.6 |  |  | 3.3 |  |  | 0.6 |
Prior service (credit) cost | (2.1 | ) |  | (3.1 | ) |  | 0.4 |  |  | 0.4 |
Accumulated other comprehensive loss | 168.8 |  |  | 124.5 |  |  | 3.7 |  |  | 1.0 |
Total recognized | $ | 123.2 |  |  | $ | 129.6 |  |  | $ | (37.1 | ) |  | $ | (39.4 | )
After-tax amount recognized in accumulated other comprehensive loss | $ | 105.4 |  |  | $ | 77.6 |  |  | $ | 2.3 |  |  | $ | 0.6 |
The aggregate accumulated benefit obligation for the defined benefit pension plans was $475.8 million at December 31, 2014 and $426.3 million at December 31, 2013. The following table shows our pension plans that have a projected benefit obligation in excess of plan assets as of December 31 (in millions):
| 2014 |  | 2013
Projected benefit obligations | $ | 502.7 |  |  | $ | 67.8 |
Fair value of plan assets | 456.9 |  |  | 40.0 |
The following table shows our pension plans that have an accumulated benefit obligation in excess of plan assets as of December 31 (in millions):
| 2014 |  | 2013
Accumulated benefit obligations | $ | 170.6 |  |  | $ | 66.4 |
Fair value of plan assets | 140.5 |  |  | 40.0 |
The following table shows the components of net periodic cost (benefit) for the year ended December 31 (in millions):
| 2014 Pension Benefits |  | 2013 Pension Benefits |  | 2012 Pension Benefits |  | 2014 Retiree Health and Life |  | 2013 Retiree Health and Life |  | 2012 Retiree Health and Life
Service cost | $ | 5.9 |  |  | $ | 6.7 |  |  | $ | 5.7 |  |  | $ | 0.1 |  |  | $ | 0.2 |  |  | $ | 0.2 |
Interest cost | 20.7 |  |  | 18.4 |  |  | 19.7 |  |  | 1.6 |  |  | 1.6 |  |  | 2.0 |
Expected return on plan assets | (28.4 | ) |  | (27.5 | ) |  | (29.6 | ) |  | — |  |  | — |  |  | — |
Amortization of: |  |  |  |  |  |  |  |  |  |  |
Unrecognized prior service credit | (1.0 | ) |  | (1.0 | ) |  | (1.0 | ) |  | (0.1 | ) |  | (0.1 | ) |  | (0.1 | )
Unrecognized net actuarial loss (gain) | 11.3 |  |  | 14.9 |  |  | 9.9 |  |  | (0.1 | ) |  | — |  |  | (0.1 | )
Net periodic cost | $ | 8.5 |  |  | $ | 11.5 |  |  | $ | 4.7 |  |  | $ | 1.5 |  |  | $ | 1.7 |  |  | $ | 2.0 |
We amortize the unrecognized prior service credit using a straight-line method over the average remaining service period of the employees we expect to receive benefits under the plan. We amortize the unrecognized net actuarial loss (gain), which is subject to certain averaging conventions, over the average remaining service period of active employees. The following table shows the amounts we expect to recognize as components of net periodic cost in 2015 from amounts recorded in accumulated comprehensive loss (gain) as of December 31, 2014 (in millions):
| 2015
| Pension Benefits |  | Retiree Health and Life
Unrecognized net actuarial loss | $ | 14.1 |  |  | $ | 0.1 |
Unrecognized prior service credit (cost) | (1.0 | ) |  | 0.1 |
We use the following assumptions to measure the benefit obligation, compute the expected long-term return on assets, and measure the periodic cost for our defined benefit pension plans and other post-retirement benefit plans for the years ended December 31:
| 2014 |  | 2013
Domestic defined benefit pension plans |  |  |
Benefit Obligation at December 31: |  |  |
Discount rate — salaried funded and unfunded plans | 4.05 | % |  | 4.80 | %
Discount rate — hourly funded plan | 4.10 | % |  | 4.90 | %
Rate of compensation increases — salaried funded and unfunded plans | 2.50 | % |  | 3.00 | %
Rate of compensation increases — hourly funded plans | N/A |  |  | N/A |
Net Periodic Cost (Benefit) for the years ended December 31: |  |  |
Discount rate — salaried funded and unfunded plans | 4.80 | % |  | 3.95 | %
Discount rate — hourly funded plan | 4.90 | % |  | 4.05 | %
Expected return on plan assets — salaried funded plan | 7.60 | % |  | 7.75 | %
Expected return on plan assets — hourly funded plan | 6.90 | % |  | 6.80 | %
Rate of compensation increases — salaried funded and unfunded plans | 3.00 | % |  | 3.00 | %
Rate of compensation increases — hourly funded plan | N/A |  |  | N/A |
Foreign defined benefit pension plan |  |  |
Benefit Obligation at December 31: |  |  |
Discount rate | 3.20 | % |  | 4.40 | %
Rate of pension-in-payment increases | 2.90 | % |  | 3.40 | %
Net Periodic Cost (Benefit) for the years ended December 31: |  |  |
Discount rate | 4.40 | % |  | 4.25 | %
Expected return on plan assets | 5.40 | % |  | 5.34 | %
Rate of pension-in-payment increases | 3.40 | % |  | 3.00 | %
Other post-retirement benefit plans |  |  |
Benefit Obligation at December 31: |  |  |
Discount rate - salaried health | 3.65 | % |  | 4.20 | %
Discount rate - hourly health | 3.85 | % |  | 4.60 | %
Discount rate - salaried life insurance | 4.00 | % |  | 4.75 | %
Discount rate - hourly life insurance | 3.70 | % |  | 4.40 | %
Rate of compensation increases | N/A |  |  | N/A |
Net Periodic Cost (Benefit) for the years ended December 31: |  |  |
Discount rate - salaried health | 4.20 | % |  | 3.65 | %
Discount rate - hourly health | 4.60 | % |  | 3.60 | %
Discount rate - salaried life insurance | 4.75 | % |  | 3.90 | %
Discount rate - hourly life insurance | 4.40 | % |  | 3.45 | %
Rate of compensation increases | N/A |  |  | N/A |
We calculate the present value of expected future pension and post-retirement cash flows as of the measurement date using a discount rate. We base the discount rate on yields for high-quality, long-term bonds with durations similar to that of our projected benefit obligation. We base the expected return on our plan assets on current and expected asset allocations, as well as historical and expected returns on various categories of plan assets. We routinely review our historical returns along with current market conditions to ensure our expected return assumption is reasonable and appropriate.
| 2014 |  | 2013
Assumed Health Care Cost Trend Rates at December 31 |  |  |
Health care cost trend assumed for next year |  |  |
Medical claims | 7.50 | % |  | 8.00 | %
Prescription drugs claims | 7.00 | % |  | 7.00 | %
Rate to which the cost trend is expected to decline (the ultimate trend rate) |  |  |
Medical claims | 5.00 | % |  | 5.00 | %
Prescription drugs claims | 5.00 | % |  | 5.00 | %
Year that rate reaches the ultimate trend rate |  |  |
Medical claims | 2023 |  |  | 2020 |
Prescription drugs claims | 2023 |  |  | 2020 |
The health care cost trend, which is based on projected growth rates for medical and prescription drug claims, has a significant effect on our other post-retirement benefit costs and obligations. The following table shows the effects of a one percentage point change in the health care cost trend rate on service and interest costs for the year ended December 31, 2014 and the post-retirement benefit obligation as of December 31, 2014 (in millions) :
| One Percentage Point Increase |  | One Percentage Point Decrease
Effect on total of service and interest cost | $ | 0.1 |  |  | $ | (0.1 | )
Effect on post-retirement benefit obligation | 2.6 |  |  | (2.3 | )
Our investment policies require that asset allocations of domestic and foreign funded pension plans be maintained at certain targets. The following table shows our weighted-average asset allocations of our domestic funded pension plans at December 31, 2014 and 2013, and current target asset allocation for 2015, by asset category:
|  |  | Plan Assets at December 31
| Target |  | 2014 |  | 2013
Asset Category |  |  |  |  |
Equity securities | 52.0 | % |  | 51.7 | % |  | 66.7 | %
Debt securities | 44.0 | % |  | 43.9 | % |  | 27.8 | %
Real estate | 4.0 | % |  | 4.3 | % |  | 5.4 | %
Cash | — | % |  | 0.1 | % |  | 0.1 | %
| 100.0 | % |  | 100.0 | % |  | 100.0 | %
The following table shows the weighted-average asset allocations of our foreign funded pension plan at December 31, 2014 and 2013, and current target asset allocation for 2015, by asset category:
|  |  | Plan Assets at December 31
| Target |  | 2014 |  | 2013
Asset Category |  |  |  |  |
Equity securities | 36.8 | % |  | 37.7 | % |  | 38.5 | %
Debt securities | 63.2 | % |  | 62.3 | % |  | 61.5 | %
| 100.0 | % |  | 100.0 | % |  | 100.0 | %
The following tables set forth the fair value of our pension plan assets as of December 31 (in millions):
| Total December 31, 2014 |  | Quoted Prices in Active Markets for Identical Assets (Level 1) |  | Significant Observable Inputs (Level 2) |  | Significant Unobservable Inputs (Level 3)
Assets |  |  |  |  |  |  |
Short-term investment funds | $ | 0.9 |  |  | $ | 0.9 |  |  | $ | — |  |  | $ | — |
Common stock |  |  |  |  |  |  |  |  |  | — |
US equities | 13.3 |  |  | 13.3 |  |  | — |  |  | — |
International equities | 1.6 |  |  | 1.6 |  |  | — |  |  | — |
Common stock collective funds | 215.2 |  |  | — |  |  | 215.2 |  |  | — |
Fixed income collective trust funds | 208.1 |  |  | — |  |  | 208.1 |  |  | — |
Real estate collective trust funds | 17.9 |  |  | — |  |  | 17.9 |  |  | — |
Total | $ | 457.0 |  |  | $ | 15.8 |  |  | $ | 441.2 |  |  | $ | — |
| Total December 31, 2013 |  | Quoted Prices in Active Markets for Identical Assets (Level 1) |  | Significant Observable Inputs (Level 2) |  | Significant Unobservable Inputs (Level 3)
Assets |  |  |  |  |  |  |
Short-term investment funds | $ | 1.3 |  |  | $ | 1.3 |  |  | $ | — |  |  | $ | — |
Common stock |  |  |  |  |  |  |  |  |  | — |
US equities | 21.4 |  |  | 21.4 |  |  | — |  |  | — |
International equities | 2.4 |  |  | 2.4 |  |  | — |  |  | — |
Common stock collective funds | 263.0 |  |  | — |  |  | 263.0 |  |  | — |
Fixed income collective trust funds | 138.0 |  |  | — |  |  | 138.0 |  |  | — |
Real estate collective trust funds | 21.7 |  |  | — |  |  | 21.7 |  |  | — |
Total | $ | 447.8 |  |  | $ | 25.1 |  |  | $ | 422.7 |  |  | $ | — |
The following is a description of the valuation techniques and inputs used as of December 31, 2014 and 2013: Short-term investment funds We value short-term investment funds based on the closing net asset values quoted by the funds. The net asset values are the unitized fair values of the underlying securities held by the trusts, which are traded in an active market. Short-term investment funds are highly liquid investments in obligations of the US Government or its agencies or instrumentalities, and the related money market instruments. The short-term investment funds have no unfunded commitments, restrictions on redemption frequency, or advance notice periods required for redemption. Common stock We value common stock traded in an active market at the last reported sales price on the last business day of the plan year. Common stock and fixed income collective trust funds We value common stock and fixed income collective trust funds based on the closing net asset values quoted by the funds. The net asset values are the unitized fair values of the underlying securities held by the trusts, which are traded in an active market. None of the collective trusts have unfunded commitments, restrictions on redemption frequency, or advance notice periods required for redemption. The investment objective of each of the common stock funds is long-term total return through capital appreciation and current income. The fixed income funds are each designed to deliver safety and stability by preserving principal and accumulated earnings. Real estate collective trust funds We value real estate collective trust funds based on the net asset values provided by the funds' administrators, which are the unitized fair values of the underlying US commercial real estate investments held by the funds. An independent appraisal determines the fair values of the real estate properties. Redemptions from the real estate funds are available with either 45 or 60 day notice prior to the end of a quarter. A lack of liquidity in the funds may limit or delay redemptions. The investment objective of the real estate funds, which are diversified by location and property type, is long-term return through property appreciation, current income, and timely sales. The primary investing objective of the pension plans is to provide benefits to plan participants and their beneficiaries. To achieve this goal, we invest in a diversified portfolio of equities, debt, and real estate investments to maximize return and to keep long-term investment risk at a reasonable level. Equity investments are diversified across US and non-US stocks, growth and value stocks, and small cap and large cap stocks. Debt securities are predominately investments in long-term, investment-grade corporate bonds. Real estate investments include investments in funds that are diversified by location and property type. On a timely basis, but not less than twice a year, we formally review pension plan investments to ensure we adhere to investment guidelines and our stated investment approach. Our review also evaluates the reasonableness of our investment decisions and risk positions. We compare our investments' performance to indices and peers to determine if investment performance has been acceptable. In 2015, we expect to contribute approximately $6.0 million to our pension and other post-retirement benefit plans. Additional contributions to the domestic funded pension plans will depend on investment returns on plan assets and actuarial experience. The following table shows benefit payments, which reflect expected future service, as appropriate, we expect the plan to pay (in millions):
| Funded Plans |  | Unfunded Plans |  | Retiree Health and Life
2015 | $ | 28.2 |  |  | $ | 2.0 |  |  | $ | 3.5 |
2016 | 28.3 |  |  | 2.2 |  |  | 3.4 |
2017 | 28.7 |  |  | 2.3 |  |  | 3.3 |
2018 | 29.2 |  |  | 2.3 |  |  | 3.2 |
2019 | 29.6 |  |  | 2.8 |  |  | 3.1 |
Years 2020-2024 | 152.2 |  |  | 15.3 |  |  | 14.0 |
| $ | 296.2 |  |  | $ | 26.9 |  |  | $ | 30.5 |
In addition to our defined benefit plans, we have two 401(k) retirement plans available to substantially all salaried employees and certain other employee groups. We may contribute to the plans as specified by their respective terms and as our board of directors determines. Contributions to our 401(k) retirement plans were $1.8 million for 2014, $1.6 million for 2013, and $1.6 million for 2012. Multiemployer Plans Most of the shipboard personnel at ASC participate in various multiemployer benefit plans that provide pension, health care, and post-retirement and other benefits to active and retired employees. Unlike single employer plans, we do not recognize plan assets or obligations for multiemployer plans on our balance sheet. Rather, we recognize our contributions to the plans as marine operating expenses. The amounts we contribute are based on the number of crew hours worked, which depends on the number of vessels deployed and aggregate operating days in a particular year. The risks of participating in these multiemployer plans are different from single employer plans in the following aspects:
• | Assets contributed by one employer may be used to provide benefits to employees of other participating employers;
• | If a participating employer fails to make its required contributions, any unfunded obligations of the plan may be the responsibility of the remaining participating employers; and
• | If an employer chooses to stop participating in a multiemployer plan, the plan may require the withdrawing company to make additional contributions.
The following table shows our contributions to multiemployer benefit plans for the years indicated (in millions):
Multiemployer Plans |  | EIN and Pension Plan Number |  | Pension Protection Act Zone Status |  | GATX Contributions |  | Collective Bargaining Agreement Expiration Date
| 2014 |  | 2013 |  | 2012 |
American Maritime Officers Pension Plan (1) |  | 13-1969709-001 |  | Endangered-Yellow |  | $ | 1.5 |  |  | $ | 1.4 |  |  | $ | 1.5 |  |  | January 15, 2017
Other multiemployer post-retirement plans |  |  |  |  |  | 7.0 |  |  | 6.7 |  |  | 6.6 |  |  |
Total |  |  |  |  |  | $ | 8.5 |  |  | $ | 8.1 |  |  | $ | 8.1 |  |  |
__________________ (1)Our contributions represented more than 5% of the total contributions to the plan during each year and no surcharge was imposed for any year. The actuary for the American Maritime Officers Pension Plan certified that the plan is in endangered status (i.e. “yellow zone” as defined by the Pension Protection Act of 2006) for the plan year beginning October 1, 2013, because it has funding or liquidity problems, or both. A rehabilitation plan, as defined by the Employee Retirement Security Act of 1974, was instituted under which certain adjustable benefits were reduced or eliminated, and we are required to contribute at a negotiated rate per day worked by each employee.

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