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Pension, OPEB and Savings Plans | 12 Months Ended
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Dec. 31, 2015
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |
Pension, OPEB and Savings Plans | Pension, Other Postretirement Benefits (OPEB) and Savings Plans PSEG sponsors several qualified and nonqualified pension plans and OPEB plans covering PSEG’s and its participating affiliates’ current and former employees who meet certain eligibility criteria. Eligible employees participate in non-contributory pension and OPEB plans sponsored by PSEG and administered by Services. In addition, represented and nonrepresented employees are eligible for participation in PSEG’s two defined contribution plans described below. PSEG, PSE&G and Power are required to record the under or over funded positions of their defined benefit pension and OPEB plans on their respective balance sheets. Such funding positions of each PSEG company are required to be measured as of the date of its respective year-end Consolidated Balance Sheets. For underfunded plans, the liability is equal to the difference between the plan’s benefit obligation and the fair value of plan assets. For defined benefit pension plans, the benefit obligation is the projected benefit obligation. For OPEB plans, the benefit obligation is the accumulated postretirement benefit obligation. In addition, GAAP requires that the total unrecognized costs for defined benefit pension and OPEB plans be recorded as an after-tax charge to Accumulated Other Comprehensive Income (Loss), a separate component of Stockholders’ Equity. However, for PSE&G, because the amortization of the unrecognized costs is being collected from customers, the accumulated unrecognized costs are recorded as a Regulatory Asset. The unrecognized costs represent actuarial gains or losses and prior service costs which had not been expensed. For PSE&G, the Regulatory Asset is amortized and recorded as net periodic pension cost in the Consolidated Statements of Operations. For Power, the charge to Accumulated Other Comprehensive Income (Loss) is amortized and recorded as net periodic pension cost in the Consolidated Statements of Operations. At the end of 2015, PSEG changed the approach used to measure future service and interest costs for pension benefits. For 2015 and prior, PSEG calculated service and interest costs utilizing a single weighted-average discount rate derived from the yield curve used to measure the plan obligations. For 2016 and beyond, PSEG has elected to calculate service and interest costs by applying the specific spot rates along that yield curve to the plans’ liability cash flows. PSEG believes the new approach provides a more precise measurement of service and interest costs by aligning the timing of the plans’ liability cash flows to the corresponding spot rates on the yield curve. This change does not affect the measurement of the plan obligations. As a change in accounting estimate, this change will be reflected prospectively. Amounts for Servco are not included in any of the following pension and OPEB benefit information for PSEG and its affiliates but rather are separately disclosed later in this note. The following table provides a roll-forward of the changes in the benefit obligation and the fair value of plan assets during each of the two years in the periods ended December 31, 2015 and 2014. It also provides the funded status of the plans and the amounts recognized and amounts not recognized on the Consolidated Balance Sheets at the end of both years.
|  |  | Pension Benefits |  | Other Benefits |
|  |  | 2015 |  | 2014 |  | 2015 |  | 2014 |
|  |  | Millions |
| Change in Benefit Obligation |  |  |  |  |  |  |  |  |
| Benefit Obligation at Beginning of Year (A) |  | $ | 5,722 |  |  | $ | 4,812 |  |  | $ | 1,638 |  |  | $ | 1,414 |  |
| Service Cost |  | 123 |  |  | 104 |  |  | 22 |  |  | 18 |  |
| Interest Cost |  | 234 |  |  | 234 |  |  | 67 |  |  | 69 |  |
| Actuarial (Gain) Loss (B) |  | (289 | ) |  | 838 |  |  | (45 | ) |  | 210 |  |
| Gross Benefits Paid |  | (268 | ) |  | (266 | ) |  | (70 | ) |  | (73 | ) |
| Benefit Obligation at End of Year (A) (B) |  | $ | 5,522 |  |  | $ | 5,722 |  |  | $ | 1,612 |  |  | $ | 1,638 |  |
| Change in Plan Assets |  |  |  |  |  |  |  |  |
| Fair Value of Assets at Beginning of Year |  | $ | 5,293 |  |  | $ | 5,116 |  |  | $ | 361 |  |  | $ | 319 |  |
| Actual Return on Plan Assets |  | (11 | ) |  | 433 |  |  | (1 | ) |  | 28 |  |
| Employer Contributions |  | 25 |  |  | 10 |  |  | 84 |  |  | 87 |  |
| Gross Benefits Paid |  | (268 | ) |  | (266 | ) |  | (70 | ) |  | (73 | ) |
| Fair Value of Assets at End of Year |  | $ | 5,039 |  |  | $ | 5,293 |  |  | $ | 374 |  |  | $ | 361 |  |
| Funded Status |  |  |  |  |  |  |  |  |
| Funded Status (Plan Assets less Benefit Obligation) |  | $ | (483 | ) |  | $ | (429 | ) |  | $ | (1,238 | ) |  | $ | (1,277 | ) |
| Additional Amounts Recognized in the Consolidated Balance Sheets |  |  |  |  |  |  |  |  |
| Noncurrent Assets (included in Other Special Funds) |  | $ | 14 |  |  | $ | 21 |  |  | $ | — |  |  | $ | — |  |
| Current Accrued Benefit Cost |  | (10 | ) |  | (10 | ) |  | (10 | ) |  | — |  |
| Noncurrent Accrued Benefit Cost |  | (487 | ) |  | (440 | ) |  | (1,228 | ) |  | (1,277 | ) |
| Amounts Recognized |  | $ | (483 | ) |  | $ | (429 | ) |  | $ | (1,238 | ) |  | $ | (1,277 | ) |
| Additional Amounts Recognized in Accumulated Other Comprehensive Income (Loss), Regulated Assets and Deferred Assets (C) |  |  |
| Prior Service Cost |  | $ | (83 | ) |  | $ | (102 | ) |  | $ | (25 | ) |  | $ | (39 | ) |
| Net Actuarial Loss |  | 1,710 |  |  | 1,724 |  |  | 438 |  |  | 495 |  |
| Total |  | $ | 1,627 |  |  | $ | 1,622 |  |  | $ | 413 |  |  | $ | 456 |  |
(A) | Represents projected benefit obligation for pension benefits and the accumulated postretirement benefit obligation for other benefits.
(B) | In October 2014, the Society of Actuaries’ Retirement Plans Experience Committee issued its final report on mortality tables (RP-2014 Mortality Tables Report). As of December 31, 2014, PSEG updated its mortality assumptions based on the information contained in this report. The impact of this change is reflected in Actuarial (Gain) Loss in 2014 and added $314 million and $79 million to the Benefit Obligations for Pension and OPEB, respectively, since December 31, 2013.
(C) | Includes $658 million ($386 million, after-tax) and $702 million ($411 million, after-tax) in Accumulated Other Comprehensive Loss related to Pension and OPEB as of December 31, 2015 and 2014, respectively.
The pension benefits table above provides information relating to the funded status of all qualified and nonqualified pension plans and OPEB plans on an aggregate basis. As of December 31, 2015, PSEG had funded approximately 91% of its projected benefit obligation. This percentage does not include $213 million of assets in the Rabbi Trust as of December 31, 2015 which were used partially to fund the nonqualified pension plans. As of December 31, 2015, the nonqualified pension plans included in the projected benefit obligation in the above table were $159 million. The fair values of the Rabbi Trust assets are included in Other Special Funds on the Consolidated Balance Sheets. Accumulated Benefit Obligation The accumulated benefit obligation for all PSEG’s defined benefit pension plans was $5.4 billion as of December 31, 2015 and $5.5 billion as of December 31, 2014. The following table provides the components of net periodic benefit cost for the years ended December 31, 2015, 2014 and 2013.
|  |  | Pension Benefits Years Ended December 31, |  | Other Benefits Years Ended December 31, |
|  |  | 2015 |  | 2014 |  | 2013 |  | 2015 |  | 2014 |  | 2013 |
|  |  | Millions |
| Components of Net Periodic Benefit Cost (Credit) |  |  |  |  |  |  |  |  |  |  |  |  |
| Service Cost |  | $ | 123 |  |  | $ | 104 |  |  | $ | 116 |  |  | $ | 22 |  |  | $ | 18 |  |  | 21 |  |
| Interest Cost |  | 234 |  |  | 234 |  |  | 215 |  |  | 67 |  |  | 69 |  |  | 63 |  |
| Expected Return on Plan Assets |  | (414 | ) |  | (399 | ) |  | (348 | ) |  | (31 | ) |  | (26 | ) |  | (21 | ) |
| Amortization of Net |  |  |  |  |  |  |  |  |  |  |  |  |
| Prior Service Cost |  | (19 | ) |  | (18 | ) |  | (19 | ) |  | (14 | ) |  | (14 | ) |  | (14 | ) |
| Actuarial Loss |  | 150 |  |  | 56 |  |  | 188 |  |  | 43 |  |  | 23 |  |  | 42 |  |
| Net Periodic Benefit Cost (Credit) |  | $ | 74 |  |  | $ | (23 | ) |  | $ | 152 |  |  | $ | 87 |  |  | $ | 70 |  |  | $ | 91 |  |
Pension costs and OPEB costs for PSEG, PSE&G and Power are detailed as follows:
|  |  | Pension Benefits Years Ended December 31, |  | Other Benefits Years Ended December 31, |
|  |  | 2015 |  | 2014 |  | 2013 |  | 2015 |  | 2014 |  | 2013 |
|  |  | Millions |
| PSE&G |  | $ | 40 |  |  | $ | (19 | ) |  | $ | 91 |  |  | $ | 55 |  |  | $ | 46 |  |  | $ | 65 |  |
| Power |  | 21 |  |  | (7 | ) |  | 43 |  |  | 27 |  |  | 20 |  |  | 23 |  |
| Other |  | 13 |  |  | 3 |  |  | 18 |  |  | 5 |  |  | 4 |  |  | 3 |  |
| Total Benefit Cost (Credit) |  | $ | 74 |  |  | $ | (23 | ) |  | $ | 152 |  |  | $ | 87 |  |  | $ | 70 |  |  | $ | 91 |  |
The following table provides the pre-tax changes recognized in Accumulated Other Comprehensive Income (Loss), Regulatory Assets and Deferred Assets:
|  |  | Pension |  | OPEB |
|  |  | 2015 |  | 2014 |  | 2015 |  | 2014 |
|  |  | Millions |
| Net Actuarial (Gain) Loss in Current Period |  | $ | 136 |  |  | $ | 803 |  |  | $ | (14 | ) |  | $ | 208 |  |
| Amortization of Net Actuarial Gain (Loss) |  | (150 | ) |  | (56 | ) |  | (43 | ) |  | (23 | ) |
| Amortization of Prior Service Credit |  | 19 |  |  | 18 |  |  | 14 |  |  | 14 |  |
| Total |  | $ | 5 |  |  | $ | 765 |  |  | $ | (43 | ) |  | $ | 199 |  |
Amounts that are expected to be amortized from Accumulated Other Comprehensive Loss, Regulatory Assets and Deferred Assets into Net Periodic Benefit Cost in 2016 are as follows:
|  |  | Pension Benefits |  | Other Benefits |
|  |  | 2016 |  | 2016 |
|  |  | Millions |
| Actuarial (Gain) Loss |  | $ | 158 |  |  | $ | 40 |  |
| Prior Service Cost |  | $ | (18 | ) |  | $ | (14 | ) |
The following assumptions were used to determine the benefit obligations and net periodic benefit costs:
|  |  | Pension Benefits |  | Other Benefits |
|  |  | 2015 |  | 2014 |  | 2013 |  | 2015 |  | 2014 |  | 2013 |
| Weighted-Average Assumptions Used to Determine Benefit Obligations as of December 31 |  |  |
| Discount Rate |  | 4.54 | % |  | 4.20 | % |  | 5.00 | % |  | 4.58 | % |  | 4.21 | % |  | 5.01 | % |
| Rate of Compensation Increase |  | 3.61 | % |  | 3.61 | % |  | 4.61 | % |  | 3.61 | % |  | 3.61 | % |  | 4.61 | % |
| Weighted-Average Assumptions Used to Determine Net Periodic Benefit Cost for Years Ended December 31 |  |  |
| Discount Rate |  | 4.20 | % |  | 5.00 | % |  | 4.20 | % |  | 4.21 | % |  | 5.01 | % |  | 4.20 | % |
| Expected Return on Plan Assets |  | 8.00 | % |  | 8.00 | % |  | 8.00 | % |  | 8.00 | % |  | 8.00 | % |  | 8.00 | % |
| Rate of Compensation Increase |  | 3.61 | % |  | 4.61 | % |  | 4.61 | % |  | 3.61 | % |  | 4.61 | % |  | 4.61 | % |
| Assumed Health Care Cost Trend Rates as of December 31 |  |  |  |  |  |  |  |  |
| Administrative Expense |  |  |  |  |  |  |  | 3.00 | % |  | 3.00 | % |  | 3.00 | % |
| Health Care Costs |  |  |  |  |  |  |  |  |  |  |  |  |
| Immediate Rate |  |  |  |  |  |  |  | 7.75 | % |  | 7.40 | % |  | 7.83 | % |
| Ultimate Rate |  |  |  |  |  |  |  | 4.75 | % |  | 5.00 | % |  | 5.00 | % |
| Year Ultimate Rate Reached |  |  |  |  |  |  |  | 2025 |  |  | 2022 |  |  | 2021 |  |
|  |  |  |  |  |  |  |  | Millions |
| Effect of a 1% Increase in the Assumed Rate of Increase in Health Care Benefit Costs |  |  |
| Total of Service Cost and Interest Cost |  |  |  |  |  |  |  | $ | 12 |  |  | $ | 13 |  |  | $ | 12 |  |
| Postretirement Benefit Obligation |  |  |  |  |  |  |  | $ | 194 |  |  | $ | 201 |  |  | $ | 161 |  |
| Effect of a 1% Decrease in the Assumed Rate of Increase in Health Care Benefit Costs |  |  |
| Total of Service Cost and Interest Cost |  |  |  |  |  |  |  | $ | (10 | ) |  | $ | (10 | ) |  | $ | (9 | ) |
| Postretirement Benefit Obligation |  |  |  |  |  |  |  | $ | (160 | ) |  | $ | (165 | ) |  | $ | (134 | ) |
Plan Assets All the investments of pension plans and OPEB plans are held in a trust account by the Trustee and consist of an undivided interest in an investment account of the Master Trust. The investments in the pension and OPEB plans are measured at fair value within a hierarchy that prioritizes the inputs to fair value measurements into three levels. See Note 16. Fair Value Measurements for more information on fair value guidance. Use of the Master Trust permits the commingling of pension plan assets and OPEB plan assets for investment and administrative purposes. Although assets of the plans are commingled in the Master Trust, the Trustee maintains supporting records for the purpose of allocating the net gain or loss of the investment account to the respective participating plans. The net investment income of the investment assets is allocated by the Trustee to each participating plan based on the relationship of the interest of each plan to the total of the interests of the participating plans. As of December 31, 2015, the pension plan interest and OPEB plan interest in such assets of the Master Trust were approximately 93% and 7%, respectively. The following tables present information about the investments measured at fair value on a recurring basis as of December 31, 2015 and 2014, including the fair value measurements and the levels of inputs used in determining those fair values.
|  |  | Recurring Fair Value Measurements as of December 31, 2015 |
|  |  |  |  | Quoted Market Prices for Identical Assets |  | Significant Other Observable Inputs |  | Significant Unobservable Inputs |
| Description |  | Total |  | (Level 1) |  | (Level 2) |  | (Level 3) |
|  |  | Millions |
| Cash Equivalents (A) |  | $ | 103 |  |  | $ | 102 |  |  | $ | 1 |  |  | $ | — |  |
| Common Stocks (B) |  |  |  |  |  |  |  |  |  |  |  |  |
| Commingled-United States |  | 1,980 |  |  | 1,980 |  |  | — |  |  | — |  |
| Commingled-International |  | 987 |  |  | 987 |  |  | — |  |  | — |  |
| Other |  | 816 |  |  | 816 |  |  | — |  |  | — |  |
| Bonds (C) |  |  |  |  |  |  |  |  |  |
| Government (United States & Foreign) |  | 602 |  |  | — |  |  | 602 |  |  | — |  |
| Other |  | 906 |  |  | — |  |  | 906 |  |  | — |  |
| Private Equity (D) |  | 19 |  |  | — |  |  | — |  |  | 19 |  |
| Total |  | $ | 5,413 |  |  | $ | 3,885 |  |  | $ | 1,509 |  |  | $ | 19 |  |
|  |  | Recurring Fair Value Measurements as of December 31, 2014 |
|  |  |  |  | Quoted Market Prices for Identical Assets |  | Significant Other Observable Inputs |  | Significant Unobservable Inputs |
| Description |  | Total |  | (Level 1) |  | (Level 2) |  | (Level 3) |
|  |  | Millions |
| Cash Equivalents (A) |  | $ | 153 |  |  | $ | 92 |  |  | $ | 61 |  |  | $ | — |  |
| Common Stocks (B) |  |  |  |  |  |  |  |  |  |  |  |  |
| Commingled-United States |  | 2,292 |  |  | 2,292 |  |  | — |  |  | — |  |
| Commingled-International |  | 1,005 |  |  | 1,005 |  |  | — |  |  | — |  |
| Other |  | 727 |  |  | 727 |  |  | — |  |  | — |  |
| Bonds (C) |  |  |  |  |  |  |  |  |  |  |  |  |
| Government (United States & Foreign) |  | 509 |  |  | — |  |  | 509 |  |  | — |  |
| Other |  | 943 |  |  | — |  |  | 943 |  |  | — |  |
| Private Equity (D) |  | 25 |  |  | — |  |  | — |  |  | 25 |  |
| Total |  | $ | 5,654 |  |  | $ | 4,116 |  |  | $ | 1,513 |  |  | $ | 25 |  |
(A) | Certain open-ended mutual funds with mainly short-term investments are valued based on unadjusted quoted prices in active market (Level 1). Certain temporary investments are valued using inputs such as time-to-maturity, coupon rate, quality rating and current yield (Level 2).
(B) | Wherever possible, fair values of equity investments in stocks and in commingled funds are derived from quoted market prices as substantially all of these instruments have active markets (primarily Level 1). Most investments in stocks are priced utilizing the principal market close price or in some cases midpoint, bid or ask price.
(C) | Investments in fixed income securities including bond funds are priced using an evaluated pricing approach or the most recent exchange or quoted bid (primarily Level 2).
(D) | Limited partnership interests in private equity funds are valued using significant unobservable inputs as there is little, if any, market activity. In addition, there may be transfer restrictions on private equity securities. The process for determining the fair value of such securities relied on commonly accepted valuation techniques, including the use of earnings multiples based on comparable public securities, industry-specific non-earnings-based multiples and discounted cash flow models. These inputs require significant management judgment or estimation (primarily Level 3).
Reconciliations of the beginning and ending balances of the Pension and OPEB Plans’ Level 3 assets for the years ended December 31, 2015 and 2014 are as follows:
|  |  | Balance as of January 1, 2015 |  | Purchases/ (Sales) |  | Transfer In/ (Out) |  | Actual Return on Asset Sales |  | Actual Return on Assets Still Held |  | Balance as of December 31, 2015 |
|  |  | Millions |
| Private Equity |  | $ | 25 |  |  | $ | (10 | ) |  | $ | — |  |  | $ | 1 |  |  | $ | 3 |  |  | $ | 19 |  |
|  |  | Balance as of January 1, 2014 |  | Purchases/ (Sales) |  | Transfer In/ (Out) |  | Actual Return on Asset Sales |  | Actual Return on Assets Still Held |  | Balance as of December 31, 2014 |
|  |  | Millions |
| Private Equity |  | $ | 25 |  |  | $ | (5 | ) |  | $ | — |  |  | $ | 3 |  |  | $ | 2 |  |  | $ | 25 |  |
The following table provides the percentage of fair value of total plan assets for each major category of plan assets held for the qualified pension and OPEB plans as of the measurement date, December 31:
|  |  | As of December 31, |
| Investments |  | 2015 |  | 2014 |
| Equity Securities |  | 70 | % |  | 71 | % |
| Fixed Income Securities |  | 28 |  |  | 26 |  |
| Other Investments |  | 2 |  |  | 3 |  |
| Total Percentage |  | 100 | % |  | 100 | % |
PSEG utilizes forecasted returns, risk, and correlation of all asset classes in order to develop a portfolio designed to produce the maximum return opportunity per unit of risk. PSEG's latest asset/liability study indicates that a long-term target asset allocation of 70% equities and 30% fixed income is consistent with the funds’ financial objectives. Derivative financial instruments are used by the plans’ investment managers primarily to adjust the fixed income duration of the portfolio and hedge the currency risk component of foreign investments. The expected long-term rate of return on plan assets was 8.00% as of December 31, 2015 and will remain unchanged for 2016. This expected return was determined based on the study discussed above, including a premium for active management and considered the plans’ historical annualized rate of return since inception, which was 9.3%. Plan Contributions PSEG plans to contribute $21 million into its qualified pension plans and $14 million into its OPEB plan, respectively, during 2016. Estimated Future Benefit Payments The following pension benefit and postretirement benefit payments are expected to be paid to plan participants.
| Year |  |  | Pension Benefits |  | Other Benefits |
|  |  |  | Millions |
| 2016 |  |  | $ | 285 |  |  | $ | 81 |  |
| 2017 |  |  | 295 |  |  | 84 |  |
| 2018 |  |  | 305 |  |  | 87 |  |
| 2019 |  |  | 317 |  |  | 91 |  |
| 2020 |  |  | 329 |  |  | 95 |  |
| 2021-2025 |  |  | 1,818 |  |  | 518 |  |
| Total |  |  | $ | 3,349 |  |  | $ | 956 |  |
401(k) Plans PSEG sponsors two 401(k) plans, which are Employee Retirement Income Security Act (ERISA) defined contribution retirement plans. Eligible represented employees of PSEG's subsidiaries participate in the PSEG Employee Savings Plan (Savings Plan), while eligible non-represented employees of PSEG's subsidiaries participate in the PSEG Thrift and Tax-Deferred Savings Plan (Thrift Plan). Eligible employees may contribute up to 50% of their compensation to these plans. PSEG matches 50% of such employee contributions up to 7% of pay for Savings Plan participants and up to 8% of pay for Thrift Plan participants. The amount paid for employer matching contributions to the plans for PSEG, PSE&G and Power are detailed as follows:
|  |  | Thrift Plan and Savings Plan |
|  |  | Years Ended December 31, |
|  |  | 2015 |  | 2014 |  | 2013 |
|  |  | Millions |
| PSE&G |  | $ | 22 |  |  | $ | 20 |  |  | $ | 19 |  |
| Power |  | 12 |  |  | 11 |  |  | 10 |  |
| Other |  | 5 |  |  | 5 |  |  | 4 |  |
| Total Employer Matching Contributions |  | $ | 39 |  |  | $ | 36 |  |  | $ | 33 |  |
Servco Pension and OPEB At the direction of LIPA, effective January 1, 2014, Servco established benefit plans that provide substantially the same benefits to its employees as those previously provided by National Grid Electric Services LLC (NGES), the predecessor T&D system manager for LIPA. Since the vast majority of Servco's employees had worked under NGES' T&D operations services arrangement with LIPA, Servco's plans provide certain of those employees with pension and OPEB vested credit for prior years' services earned while working for NGES. The benefit plans cover all employees of Servco for current service. Under the OSA, all of these and any future employee benefit costs are to be funded by LIPA. See Note 3. Variable Interest Entities. These obligations, as well as the offsetting long-term receivable, are separately presented on the Consolidated Balance Sheet of PSEG. The following table provides a roll-forward of the changes in Servco's benefit obligation and the fair value of its plan assets during the years ended December 31, 2015 and 2014. It also provides the funded status of the plans and the amounts recognized and amounts not recognized on the Consolidated Balance Sheets at the end of both years.
|  |  | Pension Benefits |  | Other Benefits |
|  |  | 2015 |  | 2014 |  | 2015 |  | 2014 |
|  |  |  |  | Millions |
| Change in Benefit Obligation |  |  |  |  |  |  |  |  |
| Benefit Obligation at Beginning of Year |  | $ | 195 |  |  | $ | — |  |  | $ | 452 |  |  | $ | — |  |
| Service Cost |  | 26 |  |  | 20 |  |  | 17 |  |  | 13 |  |
| Interest Cost |  | 9 |  |  | 7 |  |  | 21 |  |  | 17 |  |
| Actuarial (Gain) Loss |  | (20 | ) |  | 42 |  |  | (114 | ) |  | 107 |  |
| Gross Benefits Paid |  | — |  |  | — |  |  | (1 | ) |  | — |  |
| Plan Amendments |  | 1 |  |  | 126 |  |  | — |  |  | 315 |  |
| Benefit Obligation at End of Year (A) |  | $ | 211 |  |  | $ | 195 |  |  | $ | 375 |  |  | $ | 452 |  |
| Change in Plan Assets |  |  |  |  |  |  |  |  |
| Fair Value of Assets at Beginning of Year |  | $ | 69 |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |
| Actual Return on Plan Assets |  | (2 | ) |  | 2 |  |  | — |  |  | — |  |
| Employer Contributions |  | 30 |  |  | 67 |  |  | 1 |  |  | — |  |
| Gross Benefits Paid |  | — |  |  | — |  |  | (1 | ) |  | — |  |
| Fair Value of Assets at End of Year |  | $ | 97 |  |  | $ | 69 |  |  | $ | — |  |  | $ | — |  |
| Funded Status |  |  |  |  |  |  |  |  |
| Funded Status (Plan Assets less Benefit Obligation) |  | $ | (114 | ) |  | $ | (126 | ) |  | $ | (375 | ) |  | $ | (452 | ) |
| Additional Amounts Recognized in the Consolidated Balance Sheets |  |  |  |  |  |  |  |  |
| Accrued Pension Costs of Servco |  | $ | (114 | ) |  | $ | (126 | ) |  | N/A |  |  | N/A |  |
| OPEB Costs of Servco |  | N/A |  |  | N/A |  |  | (375 | ) |  | (452 | ) |
| Amounts Recognized (B) |  | $ | (114 | ) |  | $ | (126 | ) |  | $ | (375 | ) |  | $ | (452 | ) |
(A) | Represents projected benefit obligation for pension benefits and the accumulated postretirement benefit obligation for other benefits.
(B) | Amounts equal to the accrued pension and OPEB costs of Servco are offset in Long-Term Receivable of VIE on PSEG's Consolidated Balance Sheet.
Pension and OPEB costs of Servco are accounted for according to the OSA. Servco recognizes expenses for contributions to its pension plan trusts and for OPEB payments made to retirees. Operating Revenues are recognized for the reimbursement of these costs. The pension-related revenues and costs for 2015 and 2014 were $30 million and $67 million, respectively. Servco has contributed its entire planned contribution amount to its pension plan trusts during 2015. The OPEB-related revenues earned and costs incurred in 2015 and 2014 were immaterial. The following assumptions were used to determine the benefit obligations of Servco:
|  |  | Pension Benefits |  | Other Benefits |
|  |  | 2015 |  | 2014 |  | 2015 |  | 2014 |
| Weighted-Average Assumptions Used to Determine Benefit Obligations as of December 31 |
| Discount Rate |  | 4.92 | % |  | 4.50 | % |  | 4.97 | % |  | 4.60 | % |
| Rate of Compensation Increase |  | 3.25 | % |  | 3.25 | % |  | 3.25 | % |  | 3.25 | % |
| Assumed Health Care Cost Trend Rates as of December 31 |  |  |  |  |
| Administrative Expense |  |  |  |  |  | 5.00 | % |  | 5.00 | % |
| Health Care Costs |  |  |  |  |  |  |  |  |
| Immediate Rate |  |  |  |  |  | 7.55 | % |  | 7.33 | % |
| Ultimate Rate |  |  |  |  |  | 4.75 | % |  | 5.00 | % |
| Year Ultimate Rate Reached |  |  |  |  |  | 2025 |  |  | 2021 |  |
|  |  |  |  |  |  | Millions |
| Effect of a 1% Increase in the Assumed Rate of Increase in Health Care Benefit Costs |
| Postretirement Benefit Obligation |  |  |  |  |  | $ | 75 |  |  | $ | 160 |  |
| Effect of a 1% Decrease in the Assumed Rate of Increase in Health Care Benefit Costs |
| Postretirement Benefit Obligation |  |  |  |  |  | $ | (60 | ) |  | $ | (106 | ) |
Plan Assets All the investments of Servco's pension plans are held in a trust account by the Trustee and consist of an undivided interest in an investment account of the Master Trust. The investments in the pension are measured at fair value within a hierarchy that prioritizes the inputs to fair value measurements into three levels. See Note 16. Fair Value Measurements for more information on fair value guidance. The Actuary maintains supporting records for the purpose of allocating the net gain or loss of the investment account to the respective participating plans. The net investment income of the investment assets is allocated by the Actuary to each participating plan based on the relationship of the interest of each plan to the total of the interests of the participating plans. The following tables present information about Servco's investments measured at fair value on a recurring basis as of December 31, 2015 and 2014, including the fair value measurements and the levels of inputs used in determining those fair values.
|  |  | Recurring Fair Value Measurements as of December 31, 2015 |
|  |  |  |  | Quoted Market Prices for Identical Assets |  | Significant Other Observable Inputs |  | Significant Unobservable Inputs |
| Description |  | Total |  | (Level 1) |  | (Level 2) |  | (Level 3) |
|  |  | Millions |
| Cash Equivalents (A) |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |
| Common Stocks (B) |  |  |  |  |  |  |  |  |
| Commingled-United States |  | 68 |  |  | 68 |  |  | — |  |  | — |  |
| Bonds (C) |  |  |  |  |  |  |  |  |
| Other |  | 29 |  |  | — |  |  | 29 |  |  | — |  |
| Total |  | $ | 97 |  |  | $ | 68 |  |  | $ | 29 |  |  | $ | — |  |
|  |  | Recurring Fair Value Measurements as of December 31, 2014 |
|  |  |  |  | Quoted Market Prices for Identical Assets |  | Significant Other Observable Inputs |  | Significant Unobservable Inputs |
| Description |  | Total |  | (Level 1) |  | (Level 2) |  | (Level 3) |
|  |  | Millions |
| Cash Equivalents (A) |  | $ | 1 |  |  | $ | — |  |  | $ | 1 |  |  | $ | — |  |
| Common Stocks (B) |  |  |  |  |  |  |  |  |
| Commingled-United States |  | 48 |  |  | 48 |  |  | — |  |  | — |  |
| Bonds (C) |  |  |  |  |  |  |  |  |
| Other |  | 20 |  |  | — |  |  | 20 |  |  | — |  |
| Total |  | $ | 69 |  |  | $ | 48 |  |  | $ | 21 |  |  | $ | — |  |
(A) | Certain temporary investments are valued using inputs such as time-to-maturity, coupon rate, quality rating and current yield (Level 2).
(B) | Wherever possible, fair values of equity investments in commingled stock funds are derived from quoted market prices as substantially all of these instruments have active markets (primarily Level 1). Most investments in stocks are priced utilizing the principal market close price or in some cases midpoint, bid or ask price.
(C) | Investments in fixed income securities including bond funds are priced using an evaluated pricing approach or the most recent exchange or quoted bid (primarily Level 2).
The following table provides the percentage of fair value of total plan assets for each major category of plan assets held for the qualified pension and OPEB plans of Servco as of the measurement date, December 31:
|  |  | As of December 31, |
| Investments |  | 2015 |  | 2014 |
| Equity Securities |  | 71 | % |  | 70 | % |
| Fixed Income Securities |  | 29 |  |  | 29 |  |
| Other Investments |  | — |  |  | 1 |  |
| Total Percentage |  | 100 | % |  | 100 | % |
Servco utilizes forecasted returns, risk, and correlation of all asset classes in order to develop a portfolio designed to produce the maximum return opportunity per unit of risk. The results from Servco's latest asset/liability study indicated that a long-term target asset allocation of 70% equities and 30% fixed income is consistent with the funds’ financial objectives. The expected long-term rate of return on plan assets was 7.7% as of December 31, 2015 and will remain unchanged for 2016. This expected return was determined based on the study discussed above, including a premium for active management. Plan Contributions Servco plans to contribute $28 million into its pension plan during 2016. Estimated Future Benefit Payments The following pension benefit and postretirement benefit payments are expected to be paid to Servco's plan participants:
| Year |  |  | Pension Benefits |  | Other Benefits |
|  |  |  | Millions |
| 2016 |  |  | $ | 1 |  |  | $ | 3 |  |
| 2017 |  |  | 2 |  |  | 5 |  |
| 2018 |  |  | 3 |  |  | 7 |  |
| 2019 |  |  | 4 |  |  | 8 |  |
| 2020 |  |  | 6 |  |  | 10 |  |
| 2021-2025 |  |  | 60 |  |  | 80 |  |
| Total |  |  | $ | 76 |  |  | $ | 113 |  |
Servco 401(k) Plans Servco sponsors two 401(k) plans, which are defined contribution retirement plans subject to ERISA. Eligible non-represented employees of Servco participate in the Long Island Electric Utility Servco LLC Incentive Thrift Plan I (Thrift Plan I), and eligible represented employees of Servco participate in the Long Island Electric Utility Servco LLC Incentive Thrift Plan II (Thrift Plan II). Participants in the Plans may contribute up to 50% of their eligible compensation to these plans, not to exceed the IRS maximums, including any Catch-Up Contributions for those employees age 50 and above. Servco does not provide an employer match or core contribution for employees in Thrift Plan II. For employees in Thrift Plan I, Servco matches 50% of such employee contributions up to 8% of eligible compensation and provides core contributions (based on years of service and age) to employees who do not participate in Servco's Retirement Income Plan. The amounts expensed by Servco for employer matching contributions for the years ended December 31, 2015, 2014 and 2013 were immaterial and pursuant to the OSA, Servco recognizes Operating Revenues for the reimbursement of these costs.
PSE&G [Member] |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |
Pension, OPEB and Savings Plans | Pension, Other Postretirement Benefits (OPEB) and Savings Plans PSEG sponsors several qualified and nonqualified pension plans and OPEB plans covering PSEG’s and its participating affiliates’ current and former employees who meet certain eligibility criteria. Eligible employees participate in non-contributory pension and OPEB plans sponsored by PSEG and administered by Services. In addition, represented and nonrepresented employees are eligible for participation in PSEG’s two defined contribution plans described below. PSEG, PSE&G and Power are required to record the under or over funded positions of their defined benefit pension and OPEB plans on their respective balance sheets. Such funding positions of each PSEG company are required to be measured as of the date of its respective year-end Consolidated Balance Sheets. For underfunded plans, the liability is equal to the difference between the plan’s benefit obligation and the fair value of plan assets. For defined benefit pension plans, the benefit obligation is the projected benefit obligation. For OPEB plans, the benefit obligation is the accumulated postretirement benefit obligation. In addition, GAAP requires that the total unrecognized costs for defined benefit pension and OPEB plans be recorded as an after-tax charge to Accumulated Other Comprehensive Income (Loss), a separate component of Stockholders’ Equity. However, for PSE&G, because the amortization of the unrecognized costs is being collected from customers, the accumulated unrecognized costs are recorded as a Regulatory Asset. The unrecognized costs represent actuarial gains or losses and prior service costs which had not been expensed. For PSE&G, the Regulatory Asset is amortized and recorded as net periodic pension cost in the Consolidated Statements of Operations. For Power, the charge to Accumulated Other Comprehensive Income (Loss) is amortized and recorded as net periodic pension cost in the Consolidated Statements of Operations. At the end of 2015, PSEG changed the approach used to measure future service and interest costs for pension benefits. For 2015 and prior, PSEG calculated service and interest costs utilizing a single weighted-average discount rate derived from the yield curve used to measure the plan obligations. For 2016 and beyond, PSEG has elected to calculate service and interest costs by applying the specific spot rates along that yield curve to the plans’ liability cash flows. PSEG believes the new approach provides a more precise measurement of service and interest costs by aligning the timing of the plans’ liability cash flows to the corresponding spot rates on the yield curve. This change does not affect the measurement of the plan obligations. As a change in accounting estimate, this change will be reflected prospectively. Amounts for Servco are not included in any of the following pension and OPEB benefit information for PSEG and its affiliates but rather are separately disclosed later in this note. The following table provides a roll-forward of the changes in the benefit obligation and the fair value of plan assets during each of the two years in the periods ended December 31, 2015 and 2014. It also provides the funded status of the plans and the amounts recognized and amounts not recognized on the Consolidated Balance Sheets at the end of both years.
|  |  | Pension Benefits |  | Other Benefits |
|  |  | 2015 |  | 2014 |  | 2015 |  | 2014 |
|  |  | Millions |
| Change in Benefit Obligation |  |  |  |  |  |  |  |  |
| Benefit Obligation at Beginning of Year (A) |  | $ | 5,722 |  |  | $ | 4,812 |  |  | $ | 1,638 |  |  | $ | 1,414 |  |
| Service Cost |  | 123 |  |  | 104 |  |  | 22 |  |  | 18 |  |
| Interest Cost |  | 234 |  |  | 234 |  |  | 67 |  |  | 69 |  |
| Actuarial (Gain) Loss (B) |  | (289 | ) |  | 838 |  |  | (45 | ) |  | 210 |  |
| Gross Benefits Paid |  | (268 | ) |  | (266 | ) |  | (70 | ) |  | (73 | ) |
| Benefit Obligation at End of Year (A) (B) |  | $ | 5,522 |  |  | $ | 5,722 |  |  | $ | 1,612 |  |  | $ | 1,638 |  |
| Change in Plan Assets |  |  |  |  |  |  |  |  |
| Fair Value of Assets at Beginning of Year |  | $ | 5,293 |  |  | $ | 5,116 |  |  | $ | 361 |  |  | $ | 319 |  |
| Actual Return on Plan Assets |  | (11 | ) |  | 433 |  |  | (1 | ) |  | 28 |  |
| Employer Contributions |  | 25 |  |  | 10 |  |  | 84 |  |  | 87 |  |
| Gross Benefits Paid |  | (268 | ) |  | (266 | ) |  | (70 | ) |  | (73 | ) |
| Fair Value of Assets at End of Year |  | $ | 5,039 |  |  | $ | 5,293 |  |  | $ | 374 |  |  | $ | 361 |  |
| Funded Status |  |  |  |  |  |  |  |  |
| Funded Status (Plan Assets less Benefit Obligation) |  | $ | (483 | ) |  | $ | (429 | ) |  | $ | (1,238 | ) |  | $ | (1,277 | ) |
| Additional Amounts Recognized in the Consolidated Balance Sheets |  |  |  |  |  |  |  |  |
| Noncurrent Assets (included in Other Special Funds) |  | $ | 14 |  |  | $ | 21 |  |  | $ | — |  |  | $ | — |  |
| Current Accrued Benefit Cost |  | (10 | ) |  | (10 | ) |  | (10 | ) |  | — |  |
| Noncurrent Accrued Benefit Cost |  | (487 | ) |  | (440 | ) |  | (1,228 | ) |  | (1,277 | ) |
| Amounts Recognized |  | $ | (483 | ) |  | $ | (429 | ) |  | $ | (1,238 | ) |  | $ | (1,277 | ) |
| Additional Amounts Recognized in Accumulated Other Comprehensive Income (Loss), Regulated Assets and Deferred Assets (C) |  |  |
| Prior Service Cost |  | $ | (83 | ) |  | $ | (102 | ) |  | $ | (25 | ) |  | $ | (39 | ) |
| Net Actuarial Loss |  | 1,710 |  |  | 1,724 |  |  | 438 |  |  | 495 |  |
| Total |  | $ | 1,627 |  |  | $ | 1,622 |  |  | $ | 413 |  |  | $ | 456 |  |
(A) | Represents projected benefit obligation for pension benefits and the accumulated postretirement benefit obligation for other benefits.
(B) | In October 2014, the Society of Actuaries’ Retirement Plans Experience Committee issued its final report on mortality tables (RP-2014 Mortality Tables Report). As of December 31, 2014, PSEG updated its mortality assumptions based on the information contained in this report. The impact of this change is reflected in Actuarial (Gain) Loss in 2014 and added $314 million and $79 million to the Benefit Obligations for Pension and OPEB, respectively, since December 31, 2013.
(C) | Includes $658 million ($386 million, after-tax) and $702 million ($411 million, after-tax) in Accumulated Other Comprehensive Loss related to Pension and OPEB as of December 31, 2015 and 2014, respectively.
The pension benefits table above provides information relating to the funded status of all qualified and nonqualified pension plans and OPEB plans on an aggregate basis. As of December 31, 2015, PSEG had funded approximately 91% of its projected benefit obligation. This percentage does not include $213 million of assets in the Rabbi Trust as of December 31, 2015 which were used partially to fund the nonqualified pension plans. As of December 31, 2015, the nonqualified pension plans included in the projected benefit obligation in the above table were $159 million. The fair values of the Rabbi Trust assets are included in Other Special Funds on the Consolidated Balance Sheets. Accumulated Benefit Obligation The accumulated benefit obligation for all PSEG’s defined benefit pension plans was $5.4 billion as of December 31, 2015 and $5.5 billion as of December 31, 2014. The following table provides the components of net periodic benefit cost for the years ended December 31, 2015, 2014 and 2013.
|  |  | Pension Benefits Years Ended December 31, |  | Other Benefits Years Ended December 31, |
|  |  | 2015 |  | 2014 |  | 2013 |  | 2015 |  | 2014 |  | 2013 |
|  |  | Millions |
| Components of Net Periodic Benefit Cost (Credit) |  |  |  |  |  |  |  |  |  |  |  |  |
| Service Cost |  | $ | 123 |  |  | $ | 104 |  |  | $ | 116 |  |  | $ | 22 |  |  | $ | 18 |  |  | 21 |  |
| Interest Cost |  | 234 |  |  | 234 |  |  | 215 |  |  | 67 |  |  | 69 |  |  | 63 |  |
| Expected Return on Plan Assets |  | (414 | ) |  | (399 | ) |  | (348 | ) |  | (31 | ) |  | (26 | ) |  | (21 | ) |
| Amortization of Net |  |  |  |  |  |  |  |  |  |  |  |  |
| Prior Service Cost |  | (19 | ) |  | (18 | ) |  | (19 | ) |  | (14 | ) |  | (14 | ) |  | (14 | ) |
| Actuarial Loss |  | 150 |  |  | 56 |  |  | 188 |  |  | 43 |  |  | 23 |  |  | 42 |  |
| Net Periodic Benefit Cost (Credit) |  | $ | 74 |  |  | $ | (23 | ) |  | $ | 152 |  |  | $ | 87 |  |  | $ | 70 |  |  | $ | 91 |  |
Pension costs and OPEB costs for PSEG, PSE&G and Power are detailed as follows:
|  |  | Pension Benefits Years Ended December 31, |  | Other Benefits Years Ended December 31, |
|  |  | 2015 |  | 2014 |  | 2013 |  | 2015 |  | 2014 |  | 2013 |
|  |  | Millions |
| PSE&G |  | $ | 40 |  |  | $ | (19 | ) |  | $ | 91 |  |  | $ | 55 |  |  | $ | 46 |  |  | $ | 65 |  |
| Power |  | 21 |  |  | (7 | ) |  | 43 |  |  | 27 |  |  | 20 |  |  | 23 |  |
| Other |  | 13 |  |  | 3 |  |  | 18 |  |  | 5 |  |  | 4 |  |  | 3 |  |
| Total Benefit Cost (Credit) |  | $ | 74 |  |  | $ | (23 | ) |  | $ | 152 |  |  | $ | 87 |  |  | $ | 70 |  |  | $ | 91 |  |
The following table provides the pre-tax changes recognized in Accumulated Other Comprehensive Income (Loss), Regulatory Assets and Deferred Assets:
|  |  | Pension |  | OPEB |
|  |  | 2015 |  | 2014 |  | 2015 |  | 2014 |
|  |  | Millions |
| Net Actuarial (Gain) Loss in Current Period |  | $ | 136 |  |  | $ | 803 |  |  | $ | (14 | ) |  | $ | 208 |  |
| Amortization of Net Actuarial Gain (Loss) |  | (150 | ) |  | (56 | ) |  | (43 | ) |  | (23 | ) |
| Amortization of Prior Service Credit |  | 19 |  |  | 18 |  |  | 14 |  |  | 14 |  |
| Total |  | $ | 5 |  |  | $ | 765 |  |  | $ | (43 | ) |  | $ | 199 |  |
Amounts that are expected to be amortized from Accumulated Other Comprehensive Loss, Regulatory Assets and Deferred Assets into Net Periodic Benefit Cost in 2016 are as follows:
|  |  | Pension Benefits |  | Other Benefits |
|  |  | 2016 |  | 2016 |
|  |  | Millions |
| Actuarial (Gain) Loss |  | $ | 158 |  |  | $ | 40 |  |
| Prior Service Cost |  | $ | (18 | ) |  | $ | (14 | ) |
The following assumptions were used to determine the benefit obligations and net periodic benefit costs:
|  |  | Pension Benefits |  | Other Benefits |
|  |  | 2015 |  | 2014 |  | 2013 |  | 2015 |  | 2014 |  | 2013 |
| Weighted-Average Assumptions Used to Determine Benefit Obligations as of December 31 |  |  |
| Discount Rate |  | 4.54 | % |  | 4.20 | % |  | 5.00 | % |  | 4.58 | % |  | 4.21 | % |  | 5.01 | % |
| Rate of Compensation Increase |  | 3.61 | % |  | 3.61 | % |  | 4.61 | % |  | 3.61 | % |  | 3.61 | % |  | 4.61 | % |
| Weighted-Average Assumptions Used to Determine Net Periodic Benefit Cost for Years Ended December 31 |  |  |
| Discount Rate |  | 4.20 | % |  | 5.00 | % |  | 4.20 | % |  | 4.21 | % |  | 5.01 | % |  | 4.20 | % |
| Expected Return on Plan Assets |  | 8.00 | % |  | 8.00 | % |  | 8.00 | % |  | 8.00 | % |  | 8.00 | % |  | 8.00 | % |
| Rate of Compensation Increase |  | 3.61 | % |  | 4.61 | % |  | 4.61 | % |  | 3.61 | % |  | 4.61 | % |  | 4.61 | % |
| Assumed Health Care Cost Trend Rates as of December 31 |  |  |  |  |  |  |  |  |
| Administrative Expense |  |  |  |  |  |  |  | 3.00 | % |  | 3.00 | % |  | 3.00 | % |
| Health Care Costs |  |  |  |  |  |  |  |  |  |  |  |  |
| Immediate Rate |  |  |  |  |  |  |  | 7.75 | % |  | 7.40 | % |  | 7.83 | % |
| Ultimate Rate |  |  |  |  |  |  |  | 4.75 | % |  | 5.00 | % |  | 5.00 | % |
| Year Ultimate Rate Reached |  |  |  |  |  |  |  | 2025 |  |  | 2022 |  |  | 2021 |  |
|  |  |  |  |  |  |  |  | Millions |
| Effect of a 1% Increase in the Assumed Rate of Increase in Health Care Benefit Costs |  |  |
| Total of Service Cost and Interest Cost |  |  |  |  |  |  |  | $ | 12 |  |  | $ | 13 |  |  | $ | 12 |  |
| Postretirement Benefit Obligation |  |  |  |  |  |  |  | $ | 194 |  |  | $ | 201 |  |  | $ | 161 |  |
| Effect of a 1% Decrease in the Assumed Rate of Increase in Health Care Benefit Costs |  |  |
| Total of Service Cost and Interest Cost |  |  |  |  |  |  |  | $ | (10 | ) |  | $ | (10 | ) |  | $ | (9 | ) |
| Postretirement Benefit Obligation |  |  |  |  |  |  |  | $ | (160 | ) |  | $ | (165 | ) |  | $ | (134 | ) |
Plan Assets All the investments of pension plans and OPEB plans are held in a trust account by the Trustee and consist of an undivided interest in an investment account of the Master Trust. The investments in the pension and OPEB plans are measured at fair value within a hierarchy that prioritizes the inputs to fair value measurements into three levels. See Note 16. Fair Value Measurements for more information on fair value guidance. Use of the Master Trust permits the commingling of pension plan assets and OPEB plan assets for investment and administrative purposes. Although assets of the plans are commingled in the Master Trust, the Trustee maintains supporting records for the purpose of allocating the net gain or loss of the investment account to the respective participating plans. The net investment income of the investment assets is allocated by the Trustee to each participating plan based on the relationship of the interest of each plan to the total of the interests of the participating plans. As of December 31, 2015, the pension plan interest and OPEB plan interest in such assets of the Master Trust were approximately 93% and 7%, respectively. The following tables present information about the investments measured at fair value on a recurring basis as of December 31, 2015 and 2014, including the fair value measurements and the levels of inputs used in determining those fair values.
|  |  | Recurring Fair Value Measurements as of December 31, 2015 |
|  |  |  |  | Quoted Market Prices for Identical Assets |  | Significant Other Observable Inputs |  | Significant Unobservable Inputs |
| Description |  | Total |  | (Level 1) |  | (Level 2) |  | (Level 3) |
|  |  | Millions |
| Cash Equivalents (A) |  | $ | 103 |  |  | $ | 102 |  |  | $ | 1 |  |  | $ | — |  |
| Common Stocks (B) |  |  |  |  |  |  |  |  |  |  |  |  |
| Commingled-United States |  | 1,980 |  |  | 1,980 |  |  | — |  |  | — |  |
| Commingled-International |  | 987 |  |  | 987 |  |  | — |  |  | — |  |
| Other |  | 816 |  |  | 816 |  |  | — |  |  | — |  |
| Bonds (C) |  |  |  |  |  |  |  |  |  |
| Government (United States & Foreign) |  | 602 |  |  | — |  |  | 602 |  |  | — |  |
| Other |  | 906 |  |  | — |  |  | 906 |  |  | — |  |
| Private Equity (D) |  | 19 |  |  | — |  |  | — |  |  | 19 |  |
| Total |  | $ | 5,413 |  |  | $ | 3,885 |  |  | $ | 1,509 |  |  | $ | 19 |  |
|  |  | Recurring Fair Value Measurements as of December 31, 2014 |
|  |  |  |  | Quoted Market Prices for Identical Assets |  | Significant Other Observable Inputs |  | Significant Unobservable Inputs |
| Description |  | Total |  | (Level 1) |  | (Level 2) |  | (Level 3) |
|  |  | Millions |
| Cash Equivalents (A) |  | $ | 153 |  |  | $ | 92 |  |  | $ | 61 |  |  | $ | — |  |
| Common Stocks (B) |  |  |  |  |  |  |  |  |  |  |  |  |
| Commingled-United States |  | 2,292 |  |  | 2,292 |  |  | — |  |  | — |  |
| Commingled-International |  | 1,005 |  |  | 1,005 |  |  | — |  |  | — |  |
| Other |  | 727 |  |  | 727 |  |  | — |  |  | — |  |
| Bonds (C) |  |  |  |  |  |  |  |  |  |  |  |  |
| Government (United States & Foreign) |  | 509 |  |  | — |  |  | 509 |  |  | — |  |
| Other |  | 943 |  |  | — |  |  | 943 |  |  | — |  |
| Private Equity (D) |  | 25 |  |  | — |  |  | — |  |  | 25 |  |
| Total |  | $ | 5,654 |  |  | $ | 4,116 |  |  | $ | 1,513 |  |  | $ | 25 |  |
(A) | Certain open-ended mutual funds with mainly short-term investments are valued based on unadjusted quoted prices in active market (Level 1). Certain temporary investments are valued using inputs such as time-to-maturity, coupon rate, quality rating and current yield (Level 2).
(B) | Wherever possible, fair values of equity investments in stocks and in commingled funds are derived from quoted market prices as substantially all of these instruments have active markets (primarily Level 1). Most investments in stocks are priced utilizing the principal market close price or in some cases midpoint, bid or ask price.
(C) | Investments in fixed income securities including bond funds are priced using an evaluated pricing approach or the most recent exchange or quoted bid (primarily Level 2).
(D) | Limited partnership interests in private equity funds are valued using significant unobservable inputs as there is little, if any, market activity. In addition, there may be transfer restrictions on private equity securities. The process for determining the fair value of such securities relied on commonly accepted valuation techniques, including the use of earnings multiples based on comparable public securities, industry-specific non-earnings-based multiples and discounted cash flow models. These inputs require significant management judgment or estimation (primarily Level 3).
Reconciliations of the beginning and ending balances of the Pension and OPEB Plans’ Level 3 assets for the years ended December 31, 2015 and 2014 are as follows:
|  |  | Balance as of January 1, 2015 |  | Purchases/ (Sales) |  | Transfer In/ (Out) |  | Actual Return on Asset Sales |  | Actual Return on Assets Still Held |  | Balance as of December 31, 2015 |
|  |  | Millions |
| Private Equity |  | $ | 25 |  |  | $ | (10 | ) |  | $ | — |  |  | $ | 1 |  |  | $ | 3 |  |  | $ | 19 |  |
|  |  | Balance as of January 1, 2014 |  | Purchases/ (Sales) |  | Transfer In/ (Out) |  | Actual Return on Asset Sales |  | Actual Return on Assets Still Held |  | Balance as of December 31, 2014 |
|  |  | Millions |
| Private Equity |  | $ | 25 |  |  | $ | (5 | ) |  | $ | — |  |  | $ | 3 |  |  | $ | 2 |  |  | $ | 25 |  |
The following table provides the percentage of fair value of total plan assets for each major category of plan assets held for the qualified pension and OPEB plans as of the measurement date, December 31:
|  |  | As of December 31, |
| Investments |  | 2015 |  | 2014 |
| Equity Securities |  | 70 | % |  | 71 | % |
| Fixed Income Securities |  | 28 |  |  | 26 |  |
| Other Investments |  | 2 |  |  | 3 |  |
| Total Percentage |  | 100 | % |  | 100 | % |
PSEG utilizes forecasted returns, risk, and correlation of all asset classes in order to develop a portfolio designed to produce the maximum return opportunity per unit of risk. PSEG's latest asset/liability study indicates that a long-term target asset allocation of 70% equities and 30% fixed income is consistent with the funds’ financial objectives. Derivative financial instruments are used by the plans’ investment managers primarily to adjust the fixed income duration of the portfolio and hedge the currency risk component of foreign investments. The expected long-term rate of return on plan assets was 8.00% as of December 31, 2015 and will remain unchanged for 2016. This expected return was determined based on the study discussed above, including a premium for active management and considered the plans’ historical annualized rate of return since inception, which was 9.3%. Plan Contributions PSEG plans to contribute $21 million into its qualified pension plans and $14 million into its OPEB plan, respectively, during 2016. Estimated Future Benefit Payments The following pension benefit and postretirement benefit payments are expected to be paid to plan participants.
| Year |  |  | Pension Benefits |  | Other Benefits |
|  |  |  | Millions |
| 2016 |  |  | $ | 285 |  |  | $ | 81 |  |
| 2017 |  |  | 295 |  |  | 84 |  |
| 2018 |  |  | 305 |  |  | 87 |  |
| 2019 |  |  | 317 |  |  | 91 |  |
| 2020 |  |  | 329 |  |  | 95 |  |
| 2021-2025 |  |  | 1,818 |  |  | 518 |  |
| Total |  |  | $ | 3,349 |  |  | $ | 956 |  |
401(k) Plans PSEG sponsors two 401(k) plans, which are Employee Retirement Income Security Act (ERISA) defined contribution retirement plans. Eligible represented employees of PSEG's subsidiaries participate in the PSEG Employee Savings Plan (Savings Plan), while eligible non-represented employees of PSEG's subsidiaries participate in the PSEG Thrift and Tax-Deferred Savings Plan (Thrift Plan). Eligible employees may contribute up to 50% of their compensation to these plans. PSEG matches 50% of such employee contributions up to 7% of pay for Savings Plan participants and up to 8% of pay for Thrift Plan participants. The amount paid for employer matching contributions to the plans for PSEG, PSE&G and Power are detailed as follows:
|  |  | Thrift Plan and Savings Plan |
|  |  | Years Ended December 31, |
|  |  | 2015 |  | 2014 |  | 2013 |
|  |  | Millions |
| PSE&G |  | $ | 22 |  |  | $ | 20 |  |  | $ | 19 |  |
| Power |  | 12 |  |  | 11 |  |  | 10 |  |
| Other |  | 5 |  |  | 5 |  |  | 4 |  |
| Total Employer Matching Contributions |  | $ | 39 |  |  | $ | 36 |  |  | $ | 33 |  |
Servco Pension and OPEB At the direction of LIPA, effective January 1, 2014, Servco established benefit plans that provide substantially the same benefits to its employees as those previously provided by National Grid Electric Services LLC (NGES), the predecessor T&D system manager for LIPA. Since the vast majority of Servco's employees had worked under NGES' T&D operations services arrangement with LIPA, Servco's plans provide certain of those employees with pension and OPEB vested credit for prior years' services earned while working for NGES. The benefit plans cover all employees of Servco for current service. Under the OSA, all of these and any future employee benefit costs are to be funded by LIPA. See Note 3. Variable Interest Entities. These obligations, as well as the offsetting long-term receivable, are separately presented on the Consolidated Balance Sheet of PSEG. The following table provides a roll-forward of the changes in Servco's benefit obligation and the fair value of its plan assets during the years ended December 31, 2015 and 2014. It also provides the funded status of the plans and the amounts recognized and amounts not recognized on the Consolidated Balance Sheets at the end of both years.
|  |  | Pension Benefits |  | Other Benefits |
|  |  | 2015 |  | 2014 |  | 2015 |  | 2014 |
|  |  |  |  | Millions |
| Change in Benefit Obligation |  |  |  |  |  |  |  |  |
| Benefit Obligation at Beginning of Year |  | $ | 195 |  |  | $ | — |  |  | $ | 452 |  |  | $ | — |  |
| Service Cost |  | 26 |  |  | 20 |  |  | 17 |  |  | 13 |  |
| Interest Cost |  | 9 |  |  | 7 |  |  | 21 |  |  | 17 |  |
| Actuarial (Gain) Loss |  | (20 | ) |  | 42 |  |  | (114 | ) |  | 107 |  |
| Gross Benefits Paid |  | — |  |  | — |  |  | (1 | ) |  | — |  |
| Plan Amendments |  | 1 |  |  | 126 |  |  | — |  |  | 315 |  |
| Benefit Obligation at End of Year (A) |  | $ | 211 |  |  | $ | 195 |  |  | $ | 375 |  |  | $ | 452 |  |
| Change in Plan Assets |  |  |  |  |  |  |  |  |
| Fair Value of Assets at Beginning of Year |  | $ | 69 |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |
| Actual Return on Plan Assets |  | (2 | ) |  | 2 |  |  | — |  |  | — |  |
| Employer Contributions |  | 30 |  |  | 67 |  |  | 1 |  |  | — |  |
| Gross Benefits Paid |  | — |  |  | — |  |  | (1 | ) |  | — |  |
| Fair Value of Assets at End of Year |  | $ | 97 |  |  | $ | 69 |  |  | $ | — |  |  | $ | — |  |
| Funded Status |  |  |  |  |  |  |  |  |
| Funded Status (Plan Assets less Benefit Obligation) |  | $ | (114 | ) |  | $ | (126 | ) |  | $ | (375 | ) |  | $ | (452 | ) |
| Additional Amounts Recognized in the Consolidated Balance Sheets |  |  |  |  |  |  |  |  |
| Accrued Pension Costs of Servco |  | $ | (114 | ) |  | $ | (126 | ) |  | N/A |  |  | N/A |  |
| OPEB Costs of Servco |  | N/A |  |  | N/A |  |  | (375 | ) |  | (452 | ) |
| Amounts Recognized (B) |  | $ | (114 | ) |  | $ | (126 | ) |  | $ | (375 | ) |  | $ | (452 | ) |
(A) | Represents projected benefit obligation for pension benefits and the accumulated postretirement benefit obligation for other benefits.
(B) | Amounts equal to the accrued pension and OPEB costs of Servco are offset in Long-Term Receivable of VIE on PSEG's Consolidated Balance Sheet.
Pension and OPEB costs of Servco are accounted for according to the OSA. Servco recognizes expenses for contributions to its pension plan trusts and for OPEB payments made to retirees. Operating Revenues are recognized for the reimbursement of these costs. The pension-related revenues and costs for 2015 and 2014 were $30 million and $67 million, respectively. Servco has contributed its entire planned contribution amount to its pension plan trusts during 2015. The OPEB-related revenues earned and costs incurred in 2015 and 2014 were immaterial. The following assumptions were used to determine the benefit obligations of Servco:
|  |  | Pension Benefits |  | Other Benefits |
|  |  | 2015 |  | 2014 |  | 2015 |  | 2014 |
| Weighted-Average Assumptions Used to Determine Benefit Obligations as of December 31 |
| Discount Rate |  | 4.92 | % |  | 4.50 | % |  | 4.97 | % |  | 4.60 | % |
| Rate of Compensation Increase |  | 3.25 | % |  | 3.25 | % |  | 3.25 | % |  | 3.25 | % |
| Assumed Health Care Cost Trend Rates as of December 31 |  |  |  |  |
| Administrative Expense |  |  |  |  |  | 5.00 | % |  | 5.00 | % |
| Health Care Costs |  |  |  |  |  |  |  |  |
| Immediate Rate |  |  |  |  |  | 7.55 | % |  | 7.33 | % |
| Ultimate Rate |  |  |  |  |  | 4.75 | % |  | 5.00 | % |
| Year Ultimate Rate Reached |  |  |  |  |  | 2025 |  |  | 2021 |  |
|  |  |  |  |  |  | Millions |
| Effect of a 1% Increase in the Assumed Rate of Increase in Health Care Benefit Costs |
| Postretirement Benefit Obligation |  |  |  |  |  | $ | 75 |  |  | $ | 160 |  |
| Effect of a 1% Decrease in the Assumed Rate of Increase in Health Care Benefit Costs |
| Postretirement Benefit Obligation |  |  |  |  |  | $ | (60 | ) |  | $ | (106 | ) |
Plan Assets All the investments of Servco's pension plans are held in a trust account by the Trustee and consist of an undivided interest in an investment account of the Master Trust. The investments in the pension are measured at fair value within a hierarchy that prioritizes the inputs to fair value measurements into three levels. See Note 16. Fair Value Measurements for more information on fair value guidance. The Actuary maintains supporting records for the purpose of allocating the net gain or loss of the investment account to the respective participating plans. The net investment income of the investment assets is allocated by the Actuary to each participating plan based on the relationship of the interest of each plan to the total of the interests of the participating plans. The following tables present information about Servco's investments measured at fair value on a recurring basis as of December 31, 2015 and 2014, including the fair value measurements and the levels of inputs used in determining those fair values.
|  |  | Recurring Fair Value Measurements as of December 31, 2015 |
|  |  |  |  | Quoted Market Prices for Identical Assets |  | Significant Other Observable Inputs |  | Significant Unobservable Inputs |
| Description |  | Total |  | (Level 1) |  | (Level 2) |  | (Level 3) |
|  |  | Millions |
| Cash Equivalents (A) |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |
| Common Stocks (B) |  |  |  |  |  |  |  |  |
| Commingled-United States |  | 68 |  |  | 68 |  |  | — |  |  | — |  |
| Bonds (C) |  |  |  |  |  |  |  |  |
| Other |  | 29 |  |  | — |  |  | 29 |  |  | — |  |
| Total |  | $ | 97 |  |  | $ | 68 |  |  | $ | 29 |  |  | $ | — |  |
|  |  | Recurring Fair Value Measurements as of December 31, 2014 |
|  |  |  |  | Quoted Market Prices for Identical Assets |  | Significant Other Observable Inputs |  | Significant Unobservable Inputs |
| Description |  | Total |  | (Level 1) |  | (Level 2) |  | (Level 3) |
|  |  | Millions |
| Cash Equivalents (A) |  | $ | 1 |  |  | $ | — |  |  | $ | 1 |  |  | $ | — |  |
| Common Stocks (B) |  |  |  |  |  |  |  |  |
| Commingled-United States |  | 48 |  |  | 48 |  |  | — |  |  | — |  |
| Bonds (C) |  |  |  |  |  |  |  |  |
| Other |  | 20 |  |  | — |  |  | 20 |  |  | — |  |
| Total |  | $ | 69 |  |  | $ | 48 |  |  | $ | 21 |  |  | $ | — |  |
(A) | Certain temporary investments are valued using inputs such as time-to-maturity, coupon rate, quality rating and current yield (Level 2).
(B) | Wherever possible, fair values of equity investments in commingled stock funds are derived from quoted market prices as substantially all of these instruments have active markets (primarily Level 1). Most investments in stocks are priced utilizing the principal market close price or in some cases midpoint, bid or ask price.
(C) | Investments in fixed income securities including bond funds are priced using an evaluated pricing approach or the most recent exchange or quoted bid (primarily Level 2).
The following table provides the percentage of fair value of total plan assets for each major category of plan assets held for the qualified pension and OPEB plans of Servco as of the measurement date, December 31:
|  |  | As of December 31, |
| Investments |  | 2015 |  | 2014 |
| Equity Securities |  | 71 | % |  | 70 | % |
| Fixed Income Securities |  | 29 |  |  | 29 |  |
| Other Investments |  | — |  |  | 1 |  |
| Total Percentage |  | 100 | % |  | 100 | % |
Servco utilizes forecasted returns, risk, and correlation of all asset classes in order to develop a portfolio designed to produce the maximum return opportunity per unit of risk. The results from Servco's latest asset/liability study indicated that a long-term target asset allocation of 70% equities and 30% fixed income is consistent with the funds’ financial objectives. The expected long-term rate of return on plan assets was 7.7% as of December 31, 2015 and will remain unchanged for 2016. This expected return was determined based on the study discussed above, including a premium for active management. Plan Contributions Servco plans to contribute $28 million into its pension plan during 2016. Estimated Future Benefit Payments The following pension benefit and postretirement benefit payments are expected to be paid to Servco's plan participants:
| Year |  |  | Pension Benefits |  | Other Benefits |
|  |  |  | Millions |
| 2016 |  |  | $ | 1 |  |  | $ | 3 |  |
| 2017 |  |  | 2 |  |  | 5 |  |
| 2018 |  |  | 3 |  |  | 7 |  |
| 2019 |  |  | 4 |  |  | 8 |  |
| 2020 |  |  | 6 |  |  | 10 |  |
| 2021-2025 |  |  | 60 |  |  | 80 |  |
| Total |  |  | $ | 76 |  |  | $ | 113 |  |
Servco 401(k) Plans Servco sponsors two 401(k) plans, which are defined contribution retirement plans subject to ERISA. Eligible non-represented employees of Servco participate in the Long Island Electric Utility Servco LLC Incentive Thrift Plan I (Thrift Plan I), and eligible represented employees of Servco participate in the Long Island Electric Utility Servco LLC Incentive Thrift Plan II (Thrift Plan II). Participants in the Plans may contribute up to 50% of their eligible compensation to these plans, not to exceed the IRS maximums, including any Catch-Up Contributions for those employees age 50 and above. Servco does not provide an employer match or core contribution for employees in Thrift Plan II. For employees in Thrift Plan I, Servco matches 50% of such employee contributions up to 8% of eligible compensation and provides core contributions (based on years of service and age) to employees who do not participate in Servco's Retirement Income Plan. The amounts expensed by Servco for employer matching contributions for the years ended December 31, 2015, 2014 and 2013 were immaterial and pursuant to the OSA, Servco recognizes Operating Revenues for the reimbursement of these costs.
Power [Member] |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |
Pension, OPEB and Savings Plans | Pension, Other Postretirement Benefits (OPEB) and Savings Plans PSEG sponsors several qualified and nonqualified pension plans and OPEB plans covering PSEG’s and its participating affiliates’ current and former employees who meet certain eligibility criteria. Eligible employees participate in non-contributory pension and OPEB plans sponsored by PSEG and administered by Services. In addition, represented and nonrepresented employees are eligible for participation in PSEG’s two defined contribution plans described below. PSEG, PSE&G and Power are required to record the under or over funded positions of their defined benefit pension and OPEB plans on their respective balance sheets. Such funding positions of each PSEG company are required to be measured as of the date of its respective year-end Consolidated Balance Sheets. For underfunded plans, the liability is equal to the difference between the plan’s benefit obligation and the fair value of plan assets. For defined benefit pension plans, the benefit obligation is the projected benefit obligation. For OPEB plans, the benefit obligation is the accumulated postretirement benefit obligation. In addition, GAAP requires that the total unrecognized costs for defined benefit pension and OPEB plans be recorded as an after-tax charge to Accumulated Other Comprehensive Income (Loss), a separate component of Stockholders’ Equity. However, for PSE&G, because the amortization of the unrecognized costs is being collected from customers, the accumulated unrecognized costs are recorded as a Regulatory Asset. The unrecognized costs represent actuarial gains or losses and prior service costs which had not been expensed. For PSE&G, the Regulatory Asset is amortized and recorded as net periodic pension cost in the Consolidated Statements of Operations. For Power, the charge to Accumulated Other Comprehensive Income (Loss) is amortized and recorded as net periodic pension cost in the Consolidated Statements of Operations. At the end of 2015, PSEG changed the approach used to measure future service and interest costs for pension benefits. For 2015 and prior, PSEG calculated service and interest costs utilizing a single weighted-average discount rate derived from the yield curve used to measure the plan obligations. For 2016 and beyond, PSEG has elected to calculate service and interest costs by applying the specific spot rates along that yield curve to the plans’ liability cash flows. PSEG believes the new approach provides a more precise measurement of service and interest costs by aligning the timing of the plans’ liability cash flows to the corresponding spot rates on the yield curve. This change does not affect the measurement of the plan obligations. As a change in accounting estimate, this change will be reflected prospectively. Amounts for Servco are not included in any of the following pension and OPEB benefit information for PSEG and its affiliates but rather are separately disclosed later in this note. The following table provides a roll-forward of the changes in the benefit obligation and the fair value of plan assets during each of the two years in the periods ended December 31, 2015 and 2014. It also provides the funded status of the plans and the amounts recognized and amounts not recognized on the Consolidated Balance Sheets at the end of both years.
|  |  | Pension Benefits |  | Other Benefits |
|  |  | 2015 |  | 2014 |  | 2015 |  | 2014 |
|  |  | Millions |
| Change in Benefit Obligation |  |  |  |  |  |  |  |  |
| Benefit Obligation at Beginning of Year (A) |  | $ | 5,722 |  |  | $ | 4,812 |  |  | $ | 1,638 |  |  | $ | 1,414 |  |
| Service Cost |  | 123 |  |  | 104 |  |  | 22 |  |  | 18 |  |
| Interest Cost |  | 234 |  |  | 234 |  |  | 67 |  |  | 69 |  |
| Actuarial (Gain) Loss (B) |  | (289 | ) |  | 838 |  |  | (45 | ) |  | 210 |  |
| Gross Benefits Paid |  | (268 | ) |  | (266 | ) |  | (70 | ) |  | (73 | ) |
| Benefit Obligation at End of Year (A) (B) |  | $ | 5,522 |  |  | $ | 5,722 |  |  | $ | 1,612 |  |  | $ | 1,638 |  |
| Change in Plan Assets |  |  |  |  |  |  |  |  |
| Fair Value of Assets at Beginning of Year |  | $ | 5,293 |  |  | $ | 5,116 |  |  | $ | 361 |  |  | $ | 319 |  |
| Actual Return on Plan Assets |  | (11 | ) |  | 433 |  |  | (1 | ) |  | 28 |  |
| Employer Contributions |  | 25 |  |  | 10 |  |  | 84 |  |  | 87 |  |
| Gross Benefits Paid |  | (268 | ) |  | (266 | ) |  | (70 | ) |  | (73 | ) |
| Fair Value of Assets at End of Year |  | $ | 5,039 |  |  | $ | 5,293 |  |  | $ | 374 |  |  | $ | 361 |  |
| Funded Status |  |  |  |  |  |  |  |  |
| Funded Status (Plan Assets less Benefit Obligation) |  | $ | (483 | ) |  | $ | (429 | ) |  | $ | (1,238 | ) |  | $ | (1,277 | ) |
| Additional Amounts Recognized in the Consolidated Balance Sheets |  |  |  |  |  |  |  |  |
| Noncurrent Assets (included in Other Special Funds) |  | $ | 14 |  |  | $ | 21 |  |  | $ | — |  |  | $ | — |  |
| Current Accrued Benefit Cost |  | (10 | ) |  | (10 | ) |  | (10 | ) |  | — |  |
| Noncurrent Accrued Benefit Cost |  | (487 | ) |  | (440 | ) |  | (1,228 | ) |  | (1,277 | ) |
| Amounts Recognized |  | $ | (483 | ) |  | $ | (429 | ) |  | $ | (1,238 | ) |  | $ | (1,277 | ) |
| Additional Amounts Recognized in Accumulated Other Comprehensive Income (Loss), Regulated Assets and Deferred Assets (C) |  |  |
| Prior Service Cost |  | $ | (83 | ) |  | $ | (102 | ) |  | $ | (25 | ) |  | $ | (39 | ) |
| Net Actuarial Loss |  | 1,710 |  |  | 1,724 |  |  | 438 |  |  | 495 |  |
| Total |  | $ | 1,627 |  |  | $ | 1,622 |  |  | $ | 413 |  |  | $ | 456 |  |
(A) | Represents projected benefit obligation for pension benefits and the accumulated postretirement benefit obligation for other benefits.
(B) | In October 2014, the Society of Actuaries’ Retirement Plans Experience Committee issued its final report on mortality tables (RP-2014 Mortality Tables Report). As of December 31, 2014, PSEG updated its mortality assumptions based on the information contained in this report. The impact of this change is reflected in Actuarial (Gain) Loss in 2014 and added $314 million and $79 million to the Benefit Obligations for Pension and OPEB, respectively, since December 31, 2013.
(C) | Includes $658 million ($386 million, after-tax) and $702 million ($411 million, after-tax) in Accumulated Other Comprehensive Loss related to Pension and OPEB as of December 31, 2015 and 2014, respectively.
The pension benefits table above provides information relating to the funded status of all qualified and nonqualified pension plans and OPEB plans on an aggregate basis. As of December 31, 2015, PSEG had funded approximately 91% of its projected benefit obligation. This percentage does not include $213 million of assets in the Rabbi Trust as of December 31, 2015 which were used partially to fund the nonqualified pension plans. As of December 31, 2015, the nonqualified pension plans included in the projected benefit obligation in the above table were $159 million. The fair values of the Rabbi Trust assets are included in Other Special Funds on the Consolidated Balance Sheets. Accumulated Benefit Obligation The accumulated benefit obligation for all PSEG’s defined benefit pension plans was $5.4 billion as of December 31, 2015 and $5.5 billion as of December 31, 2014. The following table provides the components of net periodic benefit cost for the years ended December 31, 2015, 2014 and 2013.
|  |  | Pension Benefits Years Ended December 31, |  | Other Benefits Years Ended December 31, |
|  |  | 2015 |  | 2014 |  | 2013 |  | 2015 |  | 2014 |  | 2013 |
|  |  | Millions |
| Components of Net Periodic Benefit Cost (Credit) |  |  |  |  |  |  |  |  |  |  |  |  |
| Service Cost |  | $ | 123 |  |  | $ | 104 |  |  | $ | 116 |  |  | $ | 22 |  |  | $ | 18 |  |  | 21 |  |
| Interest Cost |  | 234 |  |  | 234 |  |  | 215 |  |  | 67 |  |  | 69 |  |  | 63 |  |
| Expected Return on Plan Assets |  | (414 | ) |  | (399 | ) |  | (348 | ) |  | (31 | ) |  | (26 | ) |  | (21 | ) |
| Amortization of Net |  |  |  |  |  |  |  |  |  |  |  |  |
| Prior Service Cost |  | (19 | ) |  | (18 | ) |  | (19 | ) |  | (14 | ) |  | (14 | ) |  | (14 | ) |
| Actuarial Loss |  | 150 |  |  | 56 |  |  | 188 |  |  | 43 |  |  | 23 |  |  | 42 |  |
| Net Periodic Benefit Cost (Credit) |  | $ | 74 |  |  | $ | (23 | ) |  | $ | 152 |  |  | $ | 87 |  |  | $ | 70 |  |  | $ | 91 |  |
Pension costs and OPEB costs for PSEG, PSE&G and Power are detailed as follows:
|  |  | Pension Benefits Years Ended December 31, |  | Other Benefits Years Ended December 31, |
|  |  | 2015 |  | 2014 |  | 2013 |  | 2015 |  | 2014 |  | 2013 |
|  |  | Millions |
| PSE&G |  | $ | 40 |  |  | $ | (19 | ) |  | $ | 91 |  |  | $ | 55 |  |  | $ | 46 |  |  | $ | 65 |  |
| Power |  | 21 |  |  | (7 | ) |  | 43 |  |  | 27 |  |  | 20 |  |  | 23 |  |
| Other |  | 13 |  |  | 3 |  |  | 18 |  |  | 5 |  |  | 4 |  |  | 3 |  |
| Total Benefit Cost (Credit) |  | $ | 74 |  |  | $ | (23 | ) |  | $ | 152 |  |  | $ | 87 |  |  | $ | 70 |  |  | $ | 91 |  |
The following table provides the pre-tax changes recognized in Accumulated Other Comprehensive Income (Loss), Regulatory Assets and Deferred Assets:
|  |  | Pension |  | OPEB |
|  |  | 2015 |  | 2014 |  | 2015 |  | 2014 |
|  |  | Millions |
| Net Actuarial (Gain) Loss in Current Period |  | $ | 136 |  |  | $ | 803 |  |  | $ | (14 | ) |  | $ | 208 |  |
| Amortization of Net Actuarial Gain (Loss) |  | (150 | ) |  | (56 | ) |  | (43 | ) |  | (23 | ) |
| Amortization of Prior Service Credit |  | 19 |  |  | 18 |  |  | 14 |  |  | 14 |  |
| Total |  | $ | 5 |  |  | $ | 765 |  |  | $ | (43 | ) |  | $ | 199 |  |
Amounts that are expected to be amortized from Accumulated Other Comprehensive Loss, Regulatory Assets and Deferred Assets into Net Periodic Benefit Cost in 2016 are as follows:
|  |  | Pension Benefits |  | Other Benefits |
|  |  | 2016 |  | 2016 |
|  |  | Millions |
| Actuarial (Gain) Loss |  | $ | 158 |  |  | $ | 40 |  |
| Prior Service Cost |  | $ | (18 | ) |  | $ | (14 | ) |
The following assumptions were used to determine the benefit obligations and net periodic benefit costs:
|  |  | Pension Benefits |  | Other Benefits |
|  |  | 2015 |  | 2014 |  | 2013 |  | 2015 |  | 2014 |  | 2013 |
| Weighted-Average Assumptions Used to Determine Benefit Obligations as of December 31 |  |  |
| Discount Rate |  | 4.54 | % |  | 4.20 | % |  | 5.00 | % |  | 4.58 | % |  | 4.21 | % |  | 5.01 | % |
| Rate of Compensation Increase |  | 3.61 | % |  | 3.61 | % |  | 4.61 | % |  | 3.61 | % |  | 3.61 | % |  | 4.61 | % |
| Weighted-Average Assumptions Used to Determine Net Periodic Benefit Cost for Years Ended December 31 |  |  |
| Discount Rate |  | 4.20 | % |  | 5.00 | % |  | 4.20 | % |  | 4.21 | % |  | 5.01 | % |  | 4.20 | % |
| Expected Return on Plan Assets |  | 8.00 | % |  | 8.00 | % |  | 8.00 | % |  | 8.00 | % |  | 8.00 | % |  | 8.00 | % |
| Rate of Compensation Increase |  | 3.61 | % |  | 4.61 | % |  | 4.61 | % |  | 3.61 | % |  | 4.61 | % |  | 4.61 | % |
| Assumed Health Care Cost Trend Rates as of December 31 |  |  |  |  |  |  |  |  |
| Administrative Expense |  |  |  |  |  |  |  | 3.00 | % |  | 3.00 | % |  | 3.00 | % |
| Health Care Costs |  |  |  |  |  |  |  |  |  |  |  |  |
| Immediate Rate |  |  |  |  |  |  |  | 7.75 | % |  | 7.40 | % |  | 7.83 | % |
| Ultimate Rate |  |  |  |  |  |  |  | 4.75 | % |  | 5.00 | % |  | 5.00 | % |
| Year Ultimate Rate Reached |  |  |  |  |  |  |  | 2025 |  |  | 2022 |  |  | 2021 |  |
|  |  |  |  |  |  |  |  | Millions |
| Effect of a 1% Increase in the Assumed Rate of Increase in Health Care Benefit Costs |  |  |
| Total of Service Cost and Interest Cost |  |  |  |  |  |  |  | $ | 12 |  |  | $ | 13 |  |  | $ | 12 |  |
| Postretirement Benefit Obligation |  |  |  |  |  |  |  | $ | 194 |  |  | $ | 201 |  |  | $ | 161 |  |
| Effect of a 1% Decrease in the Assumed Rate of Increase in Health Care Benefit Costs |  |  |
| Total of Service Cost and Interest Cost |  |  |  |  |  |  |  | $ | (10 | ) |  | $ | (10 | ) |  | $ | (9 | ) |
| Postretirement Benefit Obligation |  |  |  |  |  |  |  | $ | (160 | ) |  | $ | (165 | ) |  | $ | (134 | ) |
Plan Assets All the investments of pension plans and OPEB plans are held in a trust account by the Trustee and consist of an undivided interest in an investment account of the Master Trust. The investments in the pension and OPEB plans are measured at fair value within a hierarchy that prioritizes the inputs to fair value measurements into three levels. See Note 16. Fair Value Measurements for more information on fair value guidance. Use of the Master Trust permits the commingling of pension plan assets and OPEB plan assets for investment and administrative purposes. Although assets of the plans are commingled in the Master Trust, the Trustee maintains supporting records for the purpose of allocating the net gain or loss of the investment account to the respective participating plans. The net investment income of the investment assets is allocated by the Trustee to each participating plan based on the relationship of the interest of each plan to the total of the interests of the participating plans. As of December 31, 2015, the pension plan interest and OPEB plan interest in such assets of the Master Trust were approximately 93% and 7%, respectively. The following tables present information about the investments measured at fair value on a recurring basis as of December 31, 2015 and 2014, including the fair value measurements and the levels of inputs used in determining those fair values.
|  |  | Recurring Fair Value Measurements as of December 31, 2015 |
|  |  |  |  | Quoted Market Prices for Identical Assets |  | Significant Other Observable Inputs |  | Significant Unobservable Inputs |
| Description |  | Total |  | (Level 1) |  | (Level 2) |  | (Level 3) |
|  |  | Millions |
| Cash Equivalents (A) |  | $ | 103 |  |  | $ | 102 |  |  | $ | 1 |  |  | $ | — |  |
| Common Stocks (B) |  |  |  |  |  |  |  |  |  |  |  |  |
| Commingled-United States |  | 1,980 |  |  | 1,980 |  |  | — |  |  | — |  |
| Commingled-International |  | 987 |  |  | 987 |  |  | — |  |  | — |  |
| Other |  | 816 |  |  | 816 |  |  | — |  |  | — |  |
| Bonds (C) |  |  |  |  |  |  |  |  |  |
| Government (United States & Foreign) |  | 602 |  |  | — |  |  | 602 |  |  | — |  |
| Other |  | 906 |  |  | — |  |  | 906 |  |  | — |  |
| Private Equity (D) |  | 19 |  |  | — |  |  | — |  |  | 19 |  |
| Total |  | $ | 5,413 |  |  | $ | 3,885 |  |  | $ | 1,509 |  |  | $ | 19 |  |
|  |  | Recurring Fair Value Measurements as of December 31, 2014 |
|  |  |  |  | Quoted Market Prices for Identical Assets |  | Significant Other Observable Inputs |  | Significant Unobservable Inputs |
| Description |  | Total |  | (Level 1) |  | (Level 2) |  | (Level 3) |
|  |  | Millions |
| Cash Equivalents (A) |  | $ | 153 |  |  | $ | 92 |  |  | $ | 61 |  |  | $ | — |  |
| Common Stocks (B) |  |  |  |  |  |  |  |  |  |  |  |  |
| Commingled-United States |  | 2,292 |  |  | 2,292 |  |  | — |  |  | — |  |
| Commingled-International |  | 1,005 |  |  | 1,005 |  |  | — |  |  | — |  |
| Other |  | 727 |  |  | 727 |  |  | — |  |  | — |  |
| Bonds (C) |  |  |  |  |  |  |  |  |  |  |  |  |
| Government (United States & Foreign) |  | 509 |  |  | — |  |  | 509 |  |  | — |  |
| Other |  | 943 |  |  | — |  |  | 943 |  |  | — |  |
| Private Equity (D) |  | 25 |  |  | — |  |  | — |  |  | 25 |  |
| Total |  | $ | 5,654 |  |  | $ | 4,116 |  |  | $ | 1,513 |  |  | $ | 25 |  |
(A) | Certain open-ended mutual funds with mainly short-term investments are valued based on unadjusted quoted prices in active market (Level 1). Certain temporary investments are valued using inputs such as time-to-maturity, coupon rate, quality rating and current yield (Level 2).
(B) | Wherever possible, fair values of equity investments in stocks and in commingled funds are derived from quoted market prices as substantially all of these instruments have active markets (primarily Level 1). Most investments in stocks are priced utilizing the principal market close price or in some cases midpoint, bid or ask price.
(C) | Investments in fixed income securities including bond funds are priced using an evaluated pricing approach or the most recent exchange or quoted bid (primarily Level 2).
(D) | Limited partnership interests in private equity funds are valued using significant unobservable inputs as there is little, if any, market activity. In addition, there may be transfer restrictions on private equity securities. The process for determining the fair value of such securities relied on commonly accepted valuation techniques, including the use of earnings multiples based on comparable public securities, industry-specific non-earnings-based multiples and discounted cash flow models. These inputs require significant management judgment or estimation (primarily Level 3).
Reconciliations of the beginning and ending balances of the Pension and OPEB Plans’ Level 3 assets for the years ended December 31, 2015 and 2014 are as follows:
|  |  | Balance as of January 1, 2015 |  | Purchases/ (Sales) |  | Transfer In/ (Out) |  | Actual Return on Asset Sales |  | Actual Return on Assets Still Held |  | Balance as of December 31, 2015 |
|  |  | Millions |
| Private Equity |  | $ | 25 |  |  | $ | (10 | ) |  | $ | — |  |  | $ | 1 |  |  | $ | 3 |  |  | $ | 19 |  |
|  |  | Balance as of January 1, 2014 |  | Purchases/ (Sales) |  | Transfer In/ (Out) |  | Actual Return on Asset Sales |  | Actual Return on Assets Still Held |  | Balance as of December 31, 2014 |
|  |  | Millions |
| Private Equity |  | $ | 25 |  |  | $ | (5 | ) |  | $ | — |  |  | $ | 3 |  |  | $ | 2 |  |  | $ | 25 |  |
The following table provides the percentage of fair value of total plan assets for each major category of plan assets held for the qualified pension and OPEB plans as of the measurement date, December 31:
|  |  | As of December 31, |
| Investments |  | 2015 |  | 2014 |
| Equity Securities |  | 70 | % |  | 71 | % |
| Fixed Income Securities |  | 28 |  |  | 26 |  |
| Other Investments |  | 2 |  |  | 3 |  |
| Total Percentage |  | 100 | % |  | 100 | % |
PSEG utilizes forecasted returns, risk, and correlation of all asset classes in order to develop a portfolio designed to produce the maximum return opportunity per unit of risk. PSEG's latest asset/liability study indicates that a long-term target asset allocation of 70% equities and 30% fixed income is consistent with the funds’ financial objectives. Derivative financial instruments are used by the plans’ investment managers primarily to adjust the fixed income duration of the portfolio and hedge the currency risk component of foreign investments. The expected long-term rate of return on plan assets was 8.00% as of December 31, 2015 and will remain unchanged for 2016. This expected return was determined based on the study discussed above, including a premium for active management and considered the plans’ historical annualized rate of return since inception, which was 9.3%. Plan Contributions PSEG plans to contribute $21 million into its qualified pension plans and $14 million into its OPEB plan, respectively, during 2016. Estimated Future Benefit Payments The following pension benefit and postretirement benefit payments are expected to be paid to plan participants.
| Year |  |  | Pension Benefits |  | Other Benefits |
|  |  |  | Millions |
| 2016 |  |  | $ | 285 |  |  | $ | 81 |  |
| 2017 |  |  | 295 |  |  | 84 |  |
| 2018 |  |  | 305 |  |  | 87 |  |
| 2019 |  |  | 317 |  |  | 91 |  |
| 2020 |  |  | 329 |  |  | 95 |  |
| 2021-2025 |  |  | 1,818 |  |  | 518 |  |
| Total |  |  | $ | 3,349 |  |  | $ | 956 |  |
401(k) Plans PSEG sponsors two 401(k) plans, which are Employee Retirement Income Security Act (ERISA) defined contribution retirement plans. Eligible represented employees of PSEG's subsidiaries participate in the PSEG Employee Savings Plan (Savings Plan), while eligible non-represented employees of PSEG's subsidiaries participate in the PSEG Thrift and Tax-Deferred Savings Plan (Thrift Plan). Eligible employees may contribute up to 50% of their compensation to these plans. PSEG matches 50% of such employee contributions up to 7% of pay for Savings Plan participants and up to 8% of pay for Thrift Plan participants. The amount paid for employer matching contributions to the plans for PSEG, PSE&G and Power are detailed as follows:
|  |  | Thrift Plan and Savings Plan |
|  |  | Years Ended December 31, |
|  |  | 2015 |  | 2014 |  | 2013 |
|  |  | Millions |
| PSE&G |  | $ | 22 |  |  | $ | 20 |  |  | $ | 19 |  |
| Power |  | 12 |  |  | 11 |  |  | 10 |  |
| Other |  | 5 |  |  | 5 |  |  | 4 |  |
| Total Employer Matching Contributions |  | $ | 39 |  |  | $ | 36 |  |  | $ | 33 |  |
Servco Pension and OPEB At the direction of LIPA, effective January 1, 2014, Servco established benefit plans that provide substantially the same benefits to its employees as those previously provided by National Grid Electric Services LLC (NGES), the predecessor T&D system manager for LIPA. Since the vast majority of Servco's employees had worked under NGES' T&D operations services arrangement with LIPA, Servco's plans provide certain of those employees with pension and OPEB vested credit for prior years' services earned while working for NGES. The benefit plans cover all employees of Servco for current service. Under the OSA, all of these and any future employee benefit costs are to be funded by LIPA. See Note 3. Variable Interest Entities. These obligations, as well as the offsetting long-term receivable, are separately presented on the Consolidated Balance Sheet of PSEG. The following table provides a roll-forward of the changes in Servco's benefit obligation and the fair value of its plan assets during the years ended December 31, 2015 and 2014. It also provides the funded status of the plans and the amounts recognized and amounts not recognized on the Consolidated Balance Sheets at the end of both years.
|  |  | Pension Benefits |  | Other Benefits |
|  |  | 2015 |  | 2014 |  | 2015 |  | 2014 |
|  |  |  |  | Millions |
| Change in Benefit Obligation |  |  |  |  |  |  |  |  |
| Benefit Obligation at Beginning of Year |  | $ | 195 |  |  | $ | — |  |  | $ | 452 |  |  | $ | — |  |
| Service Cost |  | 26 |  |  | 20 |  |  | 17 |  |  | 13 |  |
| Interest Cost |  | 9 |  |  | 7 |  |  | 21 |  |  | 17 |  |
| Actuarial (Gain) Loss |  | (20 | ) |  | 42 |  |  | (114 | ) |  | 107 |  |
| Gross Benefits Paid |  | — |  |  | — |  |  | (1 | ) |  | — |  |
| Plan Amendments |  | 1 |  |  | 126 |  |  | — |  |  | 315 |  |
| Benefit Obligation at End of Year (A) |  | $ | 211 |  |  | $ | 195 |  |  | $ | 375 |  |  | $ | 452 |  |
| Change in Plan Assets |  |  |  |  |  |  |  |  |
| Fair Value of Assets at Beginning of Year |  | $ | 69 |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |
| Actual Return on Plan Assets |  | (2 | ) |  | 2 |  |  | — |  |  | — |  |
| Employer Contributions |  | 30 |  |  | 67 |  |  | 1 |  |  | — |  |
| Gross Benefits Paid |  | — |  |  | — |  |  | (1 | ) |  | — |  |
| Fair Value of Assets at End of Year |  | $ | 97 |  |  | $ | 69 |  |  | $ | — |  |  | $ | — |  |
| Funded Status |  |  |  |  |  |  |  |  |
| Funded Status (Plan Assets less Benefit Obligation) |  | $ | (114 | ) |  | $ | (126 | ) |  | $ | (375 | ) |  | $ | (452 | ) |
| Additional Amounts Recognized in the Consolidated Balance Sheets |  |  |  |  |  |  |  |  |
| Accrued Pension Costs of Servco |  | $ | (114 | ) |  | $ | (126 | ) |  | N/A |  |  | N/A |  |
| OPEB Costs of Servco |  | N/A |  |  | N/A |  |  | (375 | ) |  | (452 | ) |
| Amounts Recognized (B) |  | $ | (114 | ) |  | $ | (126 | ) |  | $ | (375 | ) |  | $ | (452 | ) |
(A) | Represents projected benefit obligation for pension benefits and the accumulated postretirement benefit obligation for other benefits.
(B) | Amounts equal to the accrued pension and OPEB costs of Servco are offset in Long-Term Receivable of VIE on PSEG's Consolidated Balance Sheet.
Pension and OPEB costs of Servco are accounted for according to the OSA. Servco recognizes expenses for contributions to its pension plan trusts and for OPEB payments made to retirees. Operating Revenues are recognized for the reimbursement of these costs. The pension-related revenues and costs for 2015 and 2014 were $30 million and $67 million, respectively. Servco has contributed its entire planned contribution amount to its pension plan trusts during 2015. The OPEB-related revenues earned and costs incurred in 2015 and 2014 were immaterial. The following assumptions were used to determine the benefit obligations of Servco:
|  |  | Pension Benefits |  | Other Benefits |
|  |  | 2015 |  | 2014 |  | 2015 |  | 2014 |
| Weighted-Average Assumptions Used to Determine Benefit Obligations as of December 31 |
| Discount Rate |  | 4.92 | % |  | 4.50 | % |  | 4.97 | % |  | 4.60 | % |
| Rate of Compensation Increase |  | 3.25 | % |  | 3.25 | % |  | 3.25 | % |  | 3.25 | % |
| Assumed Health Care Cost Trend Rates as of December 31 |  |  |  |  |
| Administrative Expense |  |  |  |  |  | 5.00 | % |  | 5.00 | % |
| Health Care Costs |  |  |  |  |  |  |  |  |
| Immediate Rate |  |  |  |  |  | 7.55 | % |  | 7.33 | % |
| Ultimate Rate |  |  |  |  |  | 4.75 | % |  | 5.00 | % |
| Year Ultimate Rate Reached |  |  |  |  |  | 2025 |  |  | 2021 |  |
|  |  |  |  |  |  | Millions |
| Effect of a 1% Increase in the Assumed Rate of Increase in Health Care Benefit Costs |
| Postretirement Benefit Obligation |  |  |  |  |  | $ | 75 |  |  | $ | 160 |  |
| Effect of a 1% Decrease in the Assumed Rate of Increase in Health Care Benefit Costs |
| Postretirement Benefit Obligation |  |  |  |  |  | $ | (60 | ) |  | $ | (106 | ) |
Plan Assets All the investments of Servco's pension plans are held in a trust account by the Trustee and consist of an undivided interest in an investment account of the Master Trust. The investments in the pension are measured at fair value within a hierarchy that prioritizes the inputs to fair value measurements into three levels. See Note 16. Fair Value Measurements for more information on fair value guidance. The Actuary maintains supporting records for the purpose of allocating the net gain or loss of the investment account to the respective participating plans. The net investment income of the investment assets is allocated by the Actuary to each participating plan based on the relationship of the interest of each plan to the total of the interests of the participating plans. The following tables present information about Servco's investments measured at fair value on a recurring basis as of December 31, 2015 and 2014, including the fair value measurements and the levels of inputs used in determining those fair values.
|  |  | Recurring Fair Value Measurements as of December 31, 2015 |
|  |  |  |  | Quoted Market Prices for Identical Assets |  | Significant Other Observable Inputs |  | Significant Unobservable Inputs |
| Description |  | Total |  | (Level 1) |  | (Level 2) |  | (Level 3) |
|  |  | Millions |
| Cash Equivalents (A) |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |
| Common Stocks (B) |  |  |  |  |  |  |  |  |
| Commingled-United States |  | 68 |  |  | 68 |  |  | — |  |  | — |  |
| Bonds (C) |  |  |  |  |  |  |  |  |
| Other |  | 29 |  |  | — |  |  | 29 |  |  | — |  |
| Total |  | $ | 97 |  |  | $ | 68 |  |  | $ | 29 |  |  | $ | — |  |
|  |  | Recurring Fair Value Measurements as of December 31, 2014 |
|  |  |  |  | Quoted Market Prices for Identical Assets |  | Significant Other Observable Inputs |  | Significant Unobservable Inputs |
| Description |  | Total |  | (Level 1) |  | (Level 2) |  | (Level 3) |
|  |  | Millions |
| Cash Equivalents (A) |  | $ | 1 |  |  | $ | — |  |  | $ | 1 |  |  | $ | — |  |
| Common Stocks (B) |  |  |  |  |  |  |  |  |
| Commingled-United States |  | 48 |  |  | 48 |  |  | — |  |  | — |  |
| Bonds (C) |  |  |  |  |  |  |  |  |
| Other |  | 20 |  |  | — |  |  | 20 |  |  | — |  |
| Total |  | $ | 69 |  |  | $ | 48 |  |  | $ | 21 |  |  | $ | — |  |
(A) | Certain temporary investments are valued using inputs such as time-to-maturity, coupon rate, quality rating and current yield (Level 2).
(B) | Wherever possible, fair values of equity investments in commingled stock funds are derived from quoted market prices as substantially all of these instruments have active markets (primarily Level 1). Most investments in stocks are priced utilizing the principal market close price or in some cases midpoint, bid or ask price.
(C) | Investments in fixed income securities including bond funds are priced using an evaluated pricing approach or the most recent exchange or quoted bid (primarily Level 2).
The following table provides the percentage of fair value of total plan assets for each major category of plan assets held for the qualified pension and OPEB plans of Servco as of the measurement date, December 31:
|  |  | As of December 31, |
| Investments |  | 2015 |  | 2014 |
| Equity Securities |  | 71 | % |  | 70 | % |
| Fixed Income Securities |  | 29 |  |  | 29 |  |
| Other Investments |  | — |  |  | 1 |  |
| Total Percentage |  | 100 | % |  | 100 | % |
Servco utilizes forecasted returns, risk, and correlation of all asset classes in order to develop a portfolio designed to produce the maximum return opportunity per unit of risk. The results from Servco's latest asset/liability study indicated that a long-term target asset allocation of 70% equities and 30% fixed income is consistent with the funds’ financial objectives. The expected long-term rate of return on plan assets was 7.7% as of December 31, 2015 and will remain unchanged for 2016. This expected return was determined based on the study discussed above, including a premium for active management. Plan Contributions Servco plans to contribute $28 million into its pension plan during 2016. Estimated Future Benefit Payments The following pension benefit and postretirement benefit payments are expected to be paid to Servco's plan participants:
| Year |  |  | Pension Benefits |  | Other Benefits |
|  |  |  | Millions |
| 2016 |  |  | $ | 1 |  |  | $ | 3 |  |
| 2017 |  |  | 2 |  |  | 5 |  |
| 2018 |  |  | 3 |  |  | 7 |  |
| 2019 |  |  | 4 |  |  | 8 |  |
| 2020 |  |  | 6 |  |  | 10 |  |
| 2021-2025 |  |  | 60 |  |  | 80 |  |
| Total |  |  | $ | 76 |  |  | $ | 113 |  |
Servco 401(k) Plans Servco sponsors two 401(k) plans, which are defined contribution retirement plans subject to ERISA. Eligible non-represented employees of Servco participate in the Long Island Electric Utility Servco LLC Incentive Thrift Plan I (Thrift Plan I), and eligible represented employees of Servco participate in the Long Island Electric Utility Servco LLC Incentive Thrift Plan II (Thrift Plan II). Participants in the Plans may contribute up to 50% of their eligible compensation to these plans, not to exceed the IRS maximums, including any Catch-Up Contributions for those employees age 50 and above. Servco does not provide an employer match or core contribution for employees in Thrift Plan II. For employees in Thrift Plan I, Servco matches 50% of such employee contributions up to 8% of eligible compensation and provides core contributions (based on years of service and age) to employees who do not participate in Servco's Retirement Income Plan. The amounts expensed by Servco for employer matching contributions for the years ended December 31, 2015, 2014 and 2013 were immaterial and pursuant to the OSA, Servco recognizes Operating Revenues for the reimbursement of these costs.

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