THE HARTFORD FINANCIAL SERVICES GROUP, INC.  NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (continued) 18.
Employee Benefit Plans (continued)
## Table 0 ##
[1] Other postretirement benefits paid represent non-key employee postretirement medical benefits paid from the Company's prefunded trust fund.
The fair value of assets for pension benefits, and hence the funded status, presented in the table above excludes assets of $144 and $132 as of December 31, 2017 and 2016, respectively, held in rabbi trusts and designated for the non-qualified pension plans.
The assets do not qualify as plan assets; however, the assets are available to pay benefits for certain retired, terminated and active participants.
Such assets are available to the Company’s general creditors in the event of insolvency.
The rabbi trust assets consist of equity and fixed income investments.
To the extent the fair value of these rabbi trusts were included in the table above, pension plan assets would have been $3,736 and $4,811 as of December 31, 2017 and 2016, respectively, and the funded status of pension benefits would have been $(640) and $(840) as of December 31, 2017 and 2016, respectively.
Defined Benefit Pension Plans with an Accumulated Benefit Obligation in Excess of Plan Assets
## Table 1 ##
As of December 31, 2017 and 2016 , pension and other postretirement benefits plan assets totaling $3.7 billion and $4.8 billion, respectively, were invested in the separate accounts of HLIC.
On January 2, 2018, all the invested assets of the defined benefit pension plans and post-retirement benefit plan were transferred to a third party custodian.
Amounts Recognized in the Consolidated Balance Sheets
## Table 2 ##
Components of Net Periodic Benefit Cost (Benefit) and Other Amounts Recognized in Other Comprehensive Income (Loss) As a result of the pension settlement, in 2017, the Company recognized a pre-tax settlement charge of $750 ($488 after-tax) and a reduction to shareholders' equity of $144.
In connection with this transaction, the Company made a contribution of $280 in September 2017 to the U. S.  qualified pension plan in order to maintain the plan's pre-transaction funded status.
Beginning with the first quarter of 2017, the Company adopted the full yield curve approach in the estimation of the interest cost component of net periodic benefit costs for its qualified and nonqualified pension plans and the postretirement benefit plan.
The full yield curve approach applies the specific spot rates along the yield curve that are used in its determination of the projected benefit obligation at the beginning of the year.
The change has been made to provide a better estimate of the interest cost component of net periodic benefit cost by better aligning projected benefit cash flows with corresponding spot rates on the yield curve rather than using a single weighted average discount rate derived from the yield curve as had been done historically.
This change does not affect the measurement of the Company's total benefit obligations as the change in the interest cost in net income is completely offset in the actuarial (gain) loss reported for the period in other comprehensive income.
The change reduced the before tax interest cost component of net periodic benefit cost by $32 as of December 31, 2017.
The discount rate being used to measure interest cost is 3.58% for the period from January 1, 2017 to June 30, 2017 and 3.37% for the period from July 1, 2017 to December 31, 2017 for the qualified pension plan, 3.55% for the non-qualified pension plan, and 3.13% for the postretirement benefit plan.
Under the Company's historical estimation approach, the weighted average discount rate for the interest cost component would have been 4.22% for the period from January 1, 2017 to June 30, 2017 and 3.92% for the period from July 1, 2017 to December 31, 2017 for the qualified pension plan, 4.19% for the non-qualified pension plan and 3.97% for the postretirement benefit plan.
The Company accounted for this change as a change in estimate, and accordingly, has recognized the effect prospectively beginning in 2017.
THE HARTFORD FINANCIAL SERVICES GROUP, INC.  NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (continued) 18.
Employee Benefit Plans (continued) F-87 and cash equivalents, equity securities, debt securities, assetbacked securities and hedge funds.
Hedge fund investments represent a diversified portfolio of partnership investments in a variety of strategies.
In addition, the Company uses U. S.  Treasury bond futures contracts and U. S.  Treasury STRIPS in a duration overlay program to adjust the duration of Plan assets to better match the duration of the benefit obligation.
Investment Valuation For further discussion of the valuation of investments, see Note 5 - Fair Value Measurements of Notes to Consolidated Financial Statements.
Pension Plan Assets at Fair Value as of December 31, 2017
## Table 3 ##
[1] Includes ABS, municipal bonds, and CDOs.
[2] Excludes approximately $1 of investment payables net of investment receivables that are excluded from this disclosure requirement because they are trade receivables in the ordinary course of business where the carrying amount approximates fair value.
Also excludes approximately $30 of interest receivable.
[3] Investments that are measured at net asset value per share or an equivalent and have not been classified in the fair value hierarchy.
Pension Plan Assets at Fair Value as of December 31, 2016
## Table 4 ##
[1] Includes ABS,municipal bonds, and CDOs.
[2] Excludes approximately $2 of investment payables net of investment receivables that are excluded from this disclosure requirement because they are trade receivables in the ordinary course of business where the carrying amount approximates fair value.
Also excludes approximately $39 of interest receivable.
[3] Investments that are measured at net asset value per share or an equivalent and have not been classified in the fair value hierarchy.
The tables below provide fair value level 3 roll-forwards for the Pension Plan Assets for which significant unobservable inputs (Level 3) are used in the fair value measurement on a recurring basis.
The Plan classifies the fair value of financial instruments within Level 3 if there are no observable markets for the instruments or, in the absence of active markets, if one or more of the significant inputs used to determine fair value are based on the Plan’s own assumptions.
Therefore, the gains and losses in the tables below include changes in fair value due to both observable and unobservable factors.
THE HARTFORD FINANCIAL SERVICES GROUP, INC.  NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (continued) 19.
Stock Compensation Plans The Company's stock-based compensation plans are described below.
Shares issued in satisfaction of stock-based compensation may be made available from authorized but unissued shares, shares held by the Company in treasury or from shares purchased in the open market.
In 2017, 2016 and 2015, the Company issued shares from treasury in satisfaction of stock-based compensation.
Stock-based compensation expense, included in insurance operating costs and other expenses in the consolidated statement of operations, was as follows: Stock-Based Compensation Expense
## Table 5 ##
[1] The increase in stock-based compensation plans expense in 2017 was largely due to a change made in 2017 to provide accelerated vesting of newly issued restricted stock unit and performance share awards to retirement eligible employees.
The Company did not capitalize any cost of stock-based compensation.
As of December 31, 2017, the total compensation cost related to non-vested awards not yet recognized was $68, which is expected to be recognized over a weighted average period of 1.5 years.
Stock Plan Future stock-based awards may be granted under The Hartford's 2014 Incentive Stock Plan (the "Incentive Stock Plan") other than the Subsidiary Stock Plan and the Employee Stock Purchase Plan described below.
The Incentive Stock Plan provides for awards to be granted in the form of non-qualified or incentive stock options qualifying under Section 422 of the Internal Revenue Code, stock appreciation rights, performance shares, restricted stock or restricted stock units, or any other form of stock-based award.
The maximum number of shares, subject to adjustments set forth in the Incentive Stock Plan, that may be issued to Company employees and third party service providers during the 10-year duration of the Incentive Stock Plan is 12,000,000 shares.
If any award under an earlier incentive stock plan is forfeited, terminated, surrendered, exchanged, expires unexercised, or is settled in cash in lieu of stock (including to effect tax withholding) or for the net issuance of a lesser number of shares than the number subject to the award, the shares of stock subject to such award (or the relevant portion thereof) shall be available for awards under the Incentive Stock Plan and such shares shall be added to the maximum limit.
As of December 31, 2017, there were 8,397,784 shares available for future issuance.
The fair values of awards granted under the Incentive Stock Plan are measured as of the grant date and expensed ratably over the awards’ vesting periods, generally 3 years.
For stock option awards to retirement-eligible employees the Company recognizes the expense over a period shorter than the stated vesting period because the employees receive accelerated vesting upon retirement and therefore the vesting period is considered nonsubstantive.
Beginning with awards granted in 2017, employees with restricted stock units and performance shares receive accelerated vesting upon meeting certain retirement eligibility criteria.
Stock Option Awards Under the Incentive Stock Plan, options granted have an exercise price at least equal to the market price of the Company’s common stock on the date of grant, and an option’s maximum term is not to exceed 10 years.
Options generally become exercisable over a three year period commencing one year from the date of grant.
Certain other options become exercisable at the later of three years from the date of grant or upon specified market appreciation of the Company's common shares.
The Company uses a hybrid lattice/Monte-Carlo based option valuation model (the “valuation model”) that incorporates the possibility of early exercise of options into the valuation.
The valuation model also incorporates the Company’s historical termination and exercise experience to determine the option value.
The valuation model incorporates ranges of assumptions for inputs, and those ranges are disclosed below.
The term structure of volatility is generally constructed utilizing implied volatilities from exchange-traded options, CPP warrants related to the Company’s stock, historical volatility of the Company’s stock and other factors.
The Company uses historical data to estimate option exercise and employee termination within the valuation model, and accommodates variations in employee preference and risk-tolerance by segregating the grantee pool into a series of behavioral cohorts and conducting a fair valuation for each cohort individually.
The expected term of options granted is derived from the output of the option valuation model and represents, in a mathematical sense, the period of time that options are expected to be outstanding.
The risk-free rate for periods within the contractual life of the option is based on the U. S.  Constant Maturity Treasury yield curve in effect at the time of grant.
Issuer Purchases of Equity Securities

<table><tr><td></td><td colspan="2">Pension Benefits</td><td colspan="2">Other Postretirement Benefits</td></tr><tr><td></td><td colspan="4">For the years ended December 31,</td></tr><tr><td></td><td>2017</td><td>2016</td><td>2017</td><td>2016</td></tr><tr><td>Fair value of plan assets — beginning of year</td><td>$4,678</td><td>$4,430</td><td>$138</td><td>$162</td></tr><tr><td>Actual return on plan assets</td><td>549</td><td>250</td><td>11</td><td>9</td></tr><tr><td>Employer contributions</td><td>280</td><td>301</td><td>—</td><td>—</td></tr><tr><td>Benefits paid [1]</td><td>-248</td><td>-279</td><td>-35</td><td>-33</td></tr><tr><td>Expenses paid</td><td>-21</td><td>-24</td><td>—</td><td>—</td></tr><tr><td>Settlements</td><td>-1,647</td><td>—</td><td>—</td><td>—</td></tr><tr><td>Foreign exchange adjustment</td><td>1</td><td>—</td><td>—</td><td>—</td></tr><tr><td>Fair value of plan assets — end of year</td><td>$3,592</td><td>$4,678</td><td>$114</td><td>$138</td></tr><tr><td>Funded status — end of year</td><td>$-784</td><td>$-972</td><td>$-142</td><td>$-134</td></tr></table>
<table><tr><td></td><td colspan="2">As of December 31,</td></tr><tr><td></td><td>2017</td><td>2016</td></tr><tr><td>Projected benefit obligation</td><td>$4,376</td><td>$5,650</td></tr><tr><td>Accumulated benefit obligation</td><td>4,376</td><td>5,650</td></tr><tr><td>Fair value of plan assets</td><td>3,592</td><td>4,678</td></tr></table>
<table><tr><td></td><td colspan="2">Pension Benefits</td><td colspan="2">Other Postretirement Benefits</td></tr><tr><td></td><td colspan="4">As of December 31,</td></tr><tr><td></td><td>2017</td><td>2016</td><td>2017</td><td>2016</td></tr><tr><td>Other liabilities</td><td>$784</td><td>$972</td><td>$142</td><td>$134</td></tr></table>
<table><tr><td>Asset Category</td><td>Level 1</td><td>Level 2</td><td>Level 3</td><td>Total</td></tr><tr><td>Short-term investments:</td><td>$21</td><td>$168</td><td>$—</td><td>$189</td></tr><tr><td>Fixed Income Securities:</td><td></td><td></td><td></td><td></td></tr><tr><td>Corporate</td><td>—</td><td>1,549</td><td>14</td><td>1,563</td></tr><tr><td>RMBS</td><td>—</td><td>28</td><td>2</td><td>30</td></tr><tr><td>U.S. Treasuries</td><td>3</td><td>74</td><td>—</td><td>77</td></tr><tr><td>Foreign government</td><td>—</td><td>16</td><td>1</td><td>17</td></tr><tr><td>CMBS</td><td>—</td><td>28</td><td>2</td><td>30</td></tr><tr><td>Other fixed income [1]</td><td>—</td><td>97</td><td>2</td><td>99</td></tr><tr><td>Mortgage Loans</td><td>—</td><td>—</td><td>140</td><td>140</td></tr><tr><td>Equity Securities:</td><td></td><td></td><td></td><td></td></tr><tr><td>Large-cap domestic</td><td>595</td><td>89</td><td>—</td><td>684</td></tr><tr><td>Mid-cap domestic</td><td>11</td><td>—</td><td>—</td><td>11</td></tr><tr><td>International</td><td>343</td><td>—</td><td>—</td><td>343</td></tr><tr><td>Total pension plan assets at fair value, in the fair value hierarchy [2]</td><td>$973</td><td>$2,049</td><td>$161</td><td>$3,183</td></tr><tr><td>Other Investments, at net asset value [3]:</td><td></td><td></td><td></td><td></td></tr><tr><td>Private Market Alternatives</td><td>—</td><td>—</td><td>—</td><td>168</td></tr><tr><td>Hedge funds</td><td>—</td><td>—</td><td>—</td><td>212</td></tr><tr><td>Total pension plan assets at fair value.</td><td>$973</td><td>$2,049</td><td>$161</td><td>$3,563</td></tr></table>
<table><tr><td>Asset Category</td><td>Level 1</td><td>Level 2</td><td>Level 3</td><td>Total</td></tr><tr><td>Short-term investments:</td><td>$12</td><td>$299</td><td>$—</td><td>$311</td></tr><tr><td>Fixed Income Securities:</td><td></td><td></td><td></td><td></td></tr><tr><td>Corporate</td><td>—</td><td>1,469</td><td>13</td><td>1,482</td></tr><tr><td>RMBS</td><td>—</td><td>266</td><td>10</td><td>276</td></tr><tr><td>U.S. Treasuries</td><td>69</td><td>649</td><td>4</td><td>722</td></tr><tr><td>Foreign government</td><td>—</td><td>37</td><td>1</td><td>38</td></tr><tr><td>CMBS</td><td>—</td><td>131</td><td>—</td><td>131</td></tr><tr><td>Other fixed income [1]</td><td>—</td><td>96</td><td>18</td><td>114</td></tr><tr><td>Mortgage Loans</td><td>—</td><td>—</td><td>121</td><td>121</td></tr><tr><td>Equity Securities:</td><td></td><td></td><td></td><td></td></tr><tr><td>Large-cap domestic</td><td>589</td><td>107</td><td>—</td><td>696</td></tr><tr><td>Mid-cap domestic</td><td>23</td><td>—</td><td>—</td><td>23</td></tr><tr><td>International</td><td>300</td><td>—</td><td>—</td><td>300</td></tr><tr><td>Total pension plan assets at fair value, in the fair value hierarchy [2]</td><td>$993</td><td>$3,054</td><td>$167</td><td>$4,214</td></tr><tr><td>Other Investments, at net asset value [3]:</td><td></td><td></td><td></td><td></td></tr><tr><td>Private Market Alternatives</td><td>—</td><td>—</td><td>—</td><td>87</td></tr><tr><td>Hedge funds</td><td>—</td><td>—</td><td>—</td><td>340</td></tr><tr><td>Total pension plan assets at fair value.</td><td>$993</td><td>$3,054</td><td>$167</td><td>$4,641</td></tr></table>
<table><tr><td></td><td colspan="3">For the years ended December 31,</td></tr><tr><td></td><td>2017</td><td>2016</td><td>2015</td></tr><tr><td>Stock-based compensation plans expense [1]</td><td>$116</td><td>$81</td><td>$78</td></tr><tr><td>Income tax benefit</td><td>-41</td><td>-29</td><td>-27</td></tr><tr><td>Excess tax benefit on awards vested, exercised and expired</td><td>-15</td><td>—</td><td>—</td></tr><tr><td>Total stock-based compensation plans expense, after-tax</td><td>$60</td><td>$52</td><td>$51</td></tr></table>

Question: What's the total value of all Level 2 that are in the range of 0 and 50 for Fixed Income Securities?
Answer: 72