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Retirement Plans | 12 Months Ended
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Dec. 31, 2024
Retirement Benefits [Abstract] |
Retirement Plans | Retirement Plans Pension Benefits We provide defined benefit retirement income to eligible non-union employees through qualified and non-qualified (supplemental) pension plans. Qualified and non-qualified pension benefits are based on years of service and the highest compensation during the latest years of employment, with specific reductions made for early retirements. Non-union employees hired on or after January 1, 2018, are no longer eligible for pension benefits, but are eligible for an enhanced 401(k) benefit as described below in other retirement programs. Funded Status We are required by GAAP to separately recognize the overfunded or underfunded status of our pension plans as an asset or liability. The funded status represents the difference between the projected benefit obligation (PBO) and the fair value of the plan assets. Our non-qualified (supplemental) pension plan is unfunded by design. The PBO of the pension plans is the present value of benefits earned to date by plan participants, including the effect of assumed future compensation increases. Plan assets are measured at fair value. We use a December 31 measurement date for plan assets and obligations for all our retirement plans. Changes in our PBO and plan assets were as follows for the years ended December 31:
Funded Status |  |
Millions | 2024 | 2023
Projected Benefit Obligation |  |
Projected benefit obligation at beginning of year | $ | 3,880 |  | $ | 3,725 |
Service cost | 52 |  | 52 |
Interest cost | 186 |  | 187 |
Actuarial loss/(gain) | (269) |  | 146 |
Gross benefits paid | (336) |  | (230) |
Projected benefit obligation at end of year | $ | 3,513 |  | $ | 3,880 |
Plan Assets |  |
Fair value of plan assets at beginning of year | $ | 4,400 |  | $ | 4,363 |
Actual return/(loss) on plan assets | (28) |  | 235 |
Non-qualified plan benefit contributions | 32 |  | 32 |
Gross benefits paid | (336) |  | (230) |
Fair value of plan assets at end of year | $ | 4,068 |  | $ | 4,400 |
Funded status at end of year | $ | 555 |  | $ | 520 |
Actuarial gains that decrease the PBO were driven by an increase in 2024 discount rates from 5.00% to 5.61%. Actuarial losses that increase the PBO were driven by a decrease in 2023 discount rates from 5.21% to 5.00%. Amounts recognized in the statement of financial position as of December 31, 2024 and 2023, consist of:
Millions | 2024 | 2023
Noncurrent assets | $ | 950 |  | $ | 924 |
Current liabilities | (32) |  | (31) |
Noncurrent liabilities | (363) |  | (373) |
Net amounts recognized at end of year | $ | 555 |  | $ | 520 |
Pre-tax amounts recognized in accumulated other comprehensive income/loss consist of $644 million and $643 million net actuarial loss as of December 31, 2024 and 2023, respectively. Pre-tax changes recognized in other comprehensive income/loss as of December 31, 2024, 2023, and 2022, were as follows:
Millions | 2024 | 2023 | 2022
Net actuarial (loss)/gain | $ | (11) |  | $ | (159) |  | $ | 272 |
Amortization of: |  |  |
Actuarial loss | 11 |  | 9 |  | 86 |
Total | $ | - |  | $ | (150) |  | $ | 358 |
Underfunded Accumulated Benefit Obligation – The accumulated benefit obligation (ABO) is the present value of benefits earned to date, assuming no future compensation growth. The underfunded accumulated benefit obligation represents the difference between the ABO and the fair value of plan assets. The following table discloses only the PBO, ABO, and fair value of plan assets for pension plans where the accumulated benefit obligation is in excess of the fair value of the plan assets as of December 31:
Underfunded Accumulated Benefit Obligation |  |
Millions | 2024 | 2023
Projected benefit obligation | $ | 395 |  | $ | 404 |
Accumulated benefit obligation | $ | 389 |  | $ | 399 |
Fair value of plan assets | - |  | - |
Underfunded accumulated benefit obligation | $ | (389) |  | $ | (399) |
The ABO for all defined benefit pension plans was $3.3 billion and $3.6 billion at December 31, 2024 and 2023, respectively. Assumptions – The weighted-average actuarial assumptions used to determine benefit obligations at December 31:
Percentages | 2024 | 2023
Discount rate | 5.61 | % | 5.00 | %
Compensation increase | 4.00 | % | 4.00 | %
Expense Pension expense is determined based upon the annual service cost of benefits (the actuarial cost of benefits earned during a period) and the interest cost on those liabilities, less the expected return on plan assets. The expected long-term rate of return on plan assets is applied to a calculated value of plan assets that recognizes changes in fair value over a 5-year period. This practice is intended to reduce year-to-year volatility in pension expense, but it can have the effect of delaying the recognition of differences between actual returns on assets and expected returns based on long-term rate of return assumptions. Differences in actual experience in relation to assumptions are not recognized in net income immediately but are deferred in accumulated other comprehensive income/loss and, if necessary, amortized as pension expense. The components of our net periodic pension benefit/cost were as follows for the years ended December 31:
Millions | 2024 | 2023 | 2022
Service cost | $ | 52 |  | $ | 52 |  | $ | 93 |
Interest cost | 186 |  | 187 |  | 123 |
Expected return on plan assets | (252) |  | (248) |  | (293) |
Amortization of actuarial loss | 11 |  | 9 |  | 86 |
Net periodic pension (benefit)/cost | $ | (3) |  | $ | - |  | $ | 9 |
Assumptions – The weighted-average actuarial assumptions used to determine expense were as follows:
Percentages | 2024 | 2023 | 2022
Discount rate for benefit obligations | 5.00 | % | 5.21 | % | 2.80 | %
Discount rate for interest on benefit obligations | 4.91 | % | 5.14 | % | 2.40 | %
Discount rate for service cost | 5.05 | % | 5.19 | % | 2.91 | %
Discount rate for interest on service cost | 5.02 | % | 5.21 | % | 2.86 | %
Expected return on plan assets | 5.25 | % | 5.25 | % | 6.25 | %
Compensation increase | 4.00 | % | 4.10 | % | 4.10 | %
We measure the service cost and interest cost components of our net periodic pension benefit/cost by using individual spot discount rates matched with separate cash flows for each future year. The discount rates were based on a yield curve of high-quality corporate bonds. The expected return on plan assets is based on our asset allocation mix and our historical return, taking into account current and expected market conditions. Cash Contributions The following table details cash contributions, if any, for the qualified and non-qualified (supplemental) pension plans:
Millions | Qualified | Non-qualified
2024 | $ | - |  | $ | 32 |
2023 | $ | - |  | $ | 32 |
Our policy with respect to funding the qualified pension plans is to fund at least the minimum required by law and not more than the maximum amount deductible for tax purposes. The non-qualified pension plan is not funded and is not subject to any minimum regulatory funding requirements. Benefit payments for each year represent supplemental pension payments. We anticipate our 2025 supplemental pension payments will be made from cash generated from operations. Benefit Payments The following table details expected benefit payments for the years 2025 through 2034:
Millions |
2025 | $ | 231 |
2026 | 230 |
2027 | 230 |
2028 | 230 |
2029 | 231 |
Years 2030 - 2034 | $ | 1,177 |
Asset Allocation Strategy Our pension plan asset allocation at December 31, 2024 and 2023, and target allocation for 2025, are as follows:
| Target Allocation 2025 | Percentage of Plan Assets December 31,
| 2024 | 2023
Equity securities | 20% to 30% | 24 | % | 24 | %
Debt securities | 70% to 80% | 75 |  | 75 |
Real estate | 0% to 2% | 1 |  | 1 |
Total |  | 100 | % | 100 | %
The pension plan investments are held in a master trust. The investment strategy for pension plan assets is to maintain a broadly diversified portfolio designed to achieve our target average long-term rate of return of 5.25%. While we believe we can achieve a long-term average rate of return of 5.25%, we cannot be certain that the portfolio will perform to our expectations. Assets are strategically allocated among equity, debt, and other investments in order to achieve a diversification level that reduces fluctuations in investment returns. Asset allocation target ranges for equity, debt, and other portfolios are evaluated at least every three years with the assistance of an independent consulting firm. Actual asset allocations are monitored monthly, and rebalancing actions are executed at least quarterly, as needed. The average credit rating of the debt portfolio was AA- at both December 31, 2024 and 2023. The debt portfolio is also broadly diversified and invested primarily in U.S. Treasury, mortgage, and corporate securities. The weighted-average maturity of the debt portfolio was 22 years at both December 31, 2024 and 2023. The investment of pension plan assets in securities issued by UPC is explicitly prohibited by the plan for both the equity and debt portfolios, other than through index fund holdings. Fair Value Measurements The pension plan assets are valued at fair value. The following is a description of the valuation methodologies used for the investments measured at fair value, including the general classification of such instruments pursuant to the valuation hierarchy. Federal Government Securities – Federal Government Securities consist of bills, notes, bonds, and other fixed income securities issued directly by the U.S. Treasury or by government-sponsored enterprises. These assets are valued using a bid evaluation process with bid data provided by independent pricing sources. Federal Government Securities are classified as Level 2 investments. Bonds and Debentures – Bonds and debentures consist of debt securities issued by U.S. and non-U.S. corporations as well as state and local governments. These assets are valued using a bid evaluation process with bid data provided by independent pricing sources. Corporate, state, and municipal bonds and debentures are classified as Level 2 investments. Corporate Stock – This investment category consists of common and preferred stock issued by U.S. and non-U.S. corporations. Most common shares are traded actively on exchanges and price quotes for these shares are readily available. Common stock is classified as a Level 1 investment. Preferred shares included in this category are valued using a bid evaluation process with bid data provided by independent pricing sources. Preferred stock is classified as a Level 2 investment. Venture Capital and Buyout Partnerships – This investment category is comprised of interests in limited partnerships that invest primarily in privately-held companies. Due to the private nature of the partnership investments, pricing inputs are not readily observable. Asset valuations are developed by the general partners that manage the partnerships. These valuations are based on the application of public market multiples to private company cash flows, market transactions that provide valuation information for comparable companies, and other methods. The fair value recorded by the plan is calculated using each partnership’s net asset value (NAV). Real Estate Funds – The plan’s real estate investments are primarily interests in private real estate investment trusts, partnerships, limited liability companies, and similar structures. Valuations for the holdings in this category are not based on readily observable inputs and are primarily derived from property appraisals. The fair value recorded by the plan is calculated using the NAV for each investment. Collective Trust and Other Funds – Collective trust and other funds are comprised of shares or units in commingled funds and limited liability companies that are not publicly traded. The underlying assets in these entities (global stock funds and short-term investment funds) are publicly traded on exchanges and price quotes for the assets held by these funds are readily available. The fair value recorded by the plan is calculated using NAV for each investment. As of December 31, 2024, the pension plan assets measured at fair value on a recurring basis were as follows:
Millions | Quoted Prices in Active Markets for Identical Inputs (Level 1) | Significant Other Observable Inputs (Level 2) | Significant Unobservable Inputs (Level 3) | Total
Plan assets at fair value: |  |  |  |
Federal government securities | $ | - |  | $ | 1,448 |  | $ | - |  | $ | 1,448 |
Bonds and debentures | - |  | 1,512 |  | - |  | 1,512 |
Corporate stock | 220 |  | 6 |  | - |  | 226 |
Total plan assets at fair value | $ | 220 |  | $ | 2,966 |  | $ | - |  | $ | 3,186 |
Plan assets at NAV: |  |  |  |
Venture capital and buyout partnerships |  |  |  | 446 |
Real estate funds |  |  |  | 26 |
Collective trust and other funds |  |  |  | 370 |
Total plan assets at NAV |  |  |  | $ | 842 |
Other assets/(liabilities) [a] |  |  |  | 40 |
Total plan assets |  |  |  | $ | 4,068 |
As of December 31, 2023, the pension plan assets measured at fair value on a recurring basis were as follows:
Millions | Quoted Prices in Active Markets for Identical Inputs (Level 1) | Significant Other Inputs (Level 2) | Significant Unobservable Inputs (Level 3) | Total
Plan assets at fair value: |  |  |  |
Federal government securities | $ | - |  | $ | 1,508 |  | $ | - |  | $ | 1,508 |
Bonds and debentures | - |  | 1,696 |  | - |  | 1,696 |
Corporate stock | 176 |  | 5 |  | - |  | 181 |
Total plan assets at fair value | $ | 176 |  | $ | 3,209 |  | $ | - |  | $ | 3,385 |
Plan assets at NAV: |  |  |  |
Venture capital and buyout partnerships |  |  |  | 554 |
Real estate funds |  |  |  | 30 |
Collective trust and other funds |  |  |  | 382 |
Total plan assets at NAV |  |  |  | $ | 966 |
Other assets/(liabilities) [a] |  |  |  | 49 |
Total plan assets |  |  |  | $ | 4,400 |
[a]Includes accrued receivables, net payables, and pending broker settlements. The master trust’s investments in limited partnerships and similar structures (used to invest in private equity and real estate) are valued at fair value based on their proportionate share of the partnerships’ fair value as recorded in the limited partnerships’ audited financial statements. The limited partnerships allocate gains, losses, and expenses to the partners based on the ownership percentage as described in the partnership agreements. Other Retirement Programs Other Post-Retirement Benefits – We provide medical and life insurance benefits for eligible retirees hired before January 1, 2004. These benefits are funded as medical claims and life insurance premiums are paid. OPEB expense is determined based upon the annual service cost of benefits and the interest cost on those liabilities plus amortization of net (gain)/loss amounts offset by amortization of prior service credits recorded in AOCI. Our OPEB liability was $104 million at both December 31, 2024 and 2023. The liability is based on discount rate assumptions of 5.53% and 4.97% at December 31, 2024 and 2023, respectively. OPEB net periodic (benefit)/cost was ($5) million in 2024, ($7) million in 2023, and ($2) million in 2022. 401(k)/Thrift Plan – For non-union employees hired prior to January 1, 2018, and eligible union employees for whom we make matching contributions, we provide a defined contribution plan (401(k)/thrift plan). We match 50% for each dollar contributed by employees up to the first 6% of compensation contributed. For non-union employees hired on or after January 1, 2018, we match 100% for each dollar, up to the first 6% of compensation contributed, in addition to contributing an annual amount of 3% of the employee’s annual base salary. Our plan contributions were $28 million in 2024, $27 million in 2023, and $24 million in 2022. Railroad Retirement System – All Railroad employees are covered by the Railroad Retirement System (the System). Contributions made to the System are expensed as incurred and amounted to approximately $671 million in 2024, $711 million in 2023, and $586 million in 2022. Collective Bargaining Agreements – Under collective bargaining agreements, we participate in multi-employer benefit plans that provide certain post retirement health care and life insurance benefits for eligible union employees. Premiums paid under these plans are expensed as incurred and amounted to $12 million in 2024, $16 million in 2023, and $20 million in 2022.

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