We also have postretirement benefits other than pensions which consist principally of health care coverage for eligible retirees and qualifying dependents, and to a lesser extent, life insurance to certain groups of retirees.
Retiree health care is provided principally until age 65 for approximately half those retirees who are eligible for health care coverage.
Certain employee groups, including employees covered by most United Auto Workers bargaining agreements, are provided lifetime health care coverage.
The funded status of the plans is measured as the difference between the plan assets at fair value and the projected benefit obligation (PBO).
We have recognized the aggregate of all overfunded plans in Pension plan assets, net and the aggregate of all underfunded plans in either Accrued retiree health care or Accrued pension plan liability, net.
The portion of the amount by which the actuarial present value of benefits included in the PBO exceeds the fair value of plan assets, payable in the next 12 months, is reflected in Accounts payable and other liabilities.
Effective December 31, 2008, SFAS No.158 requires us to measure plan assets and benefit obligations at fiscal year end.
We previously performed this measurement at September 30 of each year.
Beginning in fourth quarter of 2007 in accordance with this Standard, we eliminated the use of a three-month lag period when recognizing the impact of curtailments or settlements and, instead, recognize these amounts in the period in which they occur.
As a result of implementing the measurement date provisions of SFAS No.158, we recorded an additional quarter of pension and other postretirement benefit (OPB) cost as of January 1, 2008 as a $178 decrease to Retained earnings and a $92 decrease to Accumulated other comprehensive loss, which resulted in a net decrease of $86 to Shareholders’ equity.
The provisions of SFAS No.158 do not permit retrospective application.
The components of net periodic benefit cost are as follows:
## Table 0 ##
A portion of net periodic benefit cost is allocated to production as product costs and may remain in inventory at the end of each reporting period.
have never been installed on an airplane before.
Wedgetail includes six aircraft and Peace Eagle and Peace Eye include four aircraft each.
These are advanced and complex fixed-price development programs involving technical challenges at the individual subsystem level and in the overall integration of these subsystems into a reliable and effective operational capability.
We believe that the cost and revenue estimates incorporated in the financial statements are appropriate; however, the technical complexity of the programs creates financial risk as additional completion costs may be necessary or scheduled delivery dates could be delayed.
International KC-767 Tanker Program During 2008 and 2007, the BMA segment recorded charges of $85 million and $152 million.
The 2007 charge was partially offset at the consolidated level.
The international KC-767 Tanker program includes four aircraft for the Italian Air Force and four aircraft for the Japanese Air Self Defense Force.
We delivered the first two tankers to Japan during the first quarter of 2008.
These programs are ongoing, and while we believe the cost estimates incorporated in the financial statements are appropriate, the technical complexity of the programs creates financial risk as additional completion and development costs may be necessary or remaining scheduled delivery dates could be delayed.
C-17 As of December 31, 2008, we delivered 182 of the 190 C-17 aircraft ordered by the U. S.  Air Force (USAF), with final deliveries scheduled for 2009.
In June 2007 and April 2008, we directed key suppliers to begin work on 10 and 20 aircraft, respectively, beyond the 190 to support potential Fiscal Year 2008 (FY08) and Fiscal Year 2009 (FY09) orders and anticipated international orders.
Our authorizations allowed us to maintain the current C-17 production rate and to provide for cost-effective acquisition of the aircraft.
As of December 31, 2008, inventory expenditures and potential termination liabilities to suppliers, primarily related to the anticipated FY08 USAF order, totaled approximately $720 million.
In June 2008, the FY08 supplemental defense spending bill, signed by the President, included funding for up to an additional 15 C-17 aircraft.
The USAF placed these aircraft on contract on February 6, 2009.
There continues to be substantial interest in purchasing additional C-17 aircraft from both the U. S.  government and international customers.
The National Defense Authorization Act signed into law by the President authorizes the procurement of six C-17s in FY09.
However, funding would need to be addressed in a future defense appropriations bill.
Should additional orders not materialize, it is reasonably possible that we will decide in 2009 to complete production of the C-17.
We are still evaluating the full financial impact of a potential production shut-down, including any recovery that would be available from the government.
Such recovery from the government would not include the costs incurred by us resulting from our direction to key suppliers to begin working on aircraft beyond the 190 ordered by the USAF.
Network and Space Systems Operating Results (Dollars in millions)
## Table 1 ##
System Energy Resources, Inc.  Management's Financial Discussion and Analysis 385 with syndicated bank letters of credit.
In December 2004, System Energy amended these letters of credit and they now expire in May 2009.
System Energy may refinance or redeem debt prior to maturity, to the extent market conditions and interest and dividend rates are favorable.
All debt and common stock issuances by System Energy require prior regulatory approval.
Debt issuances are also subject to issuance tests set forth in its bond indentures and other agreements.
System Energy has sufficient capacity under these tests to meet its foreseeable capital needs.
System Energy has obtained a short-term borrowing authorization from the FERC under which it may borrow, through March 31, 2010, up to the aggregate amount, at any one time outstanding, of $200 million.
See Note 4 to the financial statements for further discussion of System Energy's short-term borrowing limits.
System Energy has also obtained an order from the FERC authorizing long-term securities issuances.
The current longterm authorization extends through June 2009.
System Energy's receivables from the money pool were as follows as of December 31 for each of the following years:
## Table 2 ##
In May 2007, $22.5 million of System Energy's receivable from the money pool was replaced by a note receivable from Entergy New Orleans.
See Note 4 to the financial statements for a description of the money pool.
Nuclear Matters System Energy owns and operates Grand Gulf.
System Energy is, therefore, subject to the risks related to owning and operating a nuclear plant.
These include risks from the use, storage, handling and disposal of high-level and low-level radioactive materials, regulatory requirement changes, including changes resulting from events at other plants, limitations on the amounts and types of insurance commercially available for losses in connection with nuclear operations, and technological and financial uncertainties related to decommissioning nuclear plants at the end of their licensed lives, including the sufficiency of funds in decommissioning trusts.
In the event of an unanticipated early shutdown of Grand Gulf, System Energy may be required to provide additional funds or credit support to satisfy regulatory requirements for decommissioning.
Environmental Risks System Energy's facilities and operations are subject to regulation by various governmental authorities having jurisdiction over air quality, water quality, control of toxic substances and hazardous and solid wastes, and other environmental matters.
Management believes that System Energy is in substantial compliance with environmental regulations currently applicable to its facilities and operations.
Because environmental regulations are subject to change, future compliance costs cannot be precisely estimated.
Critical Accounting Estimates The preparation of System Energy's financial statements in conformity with generally accepted accounting principles requires management to apply appropriate accounting policies and to make estimates and judgments that
We conduct goodwill impairment testing in the fourth quarter of each fiscal year and whenever events and changes in circumstances indicate that the carrying value of goodwill might not be recoverable.
Our goodwill impairment test involves a two-step process.
In the first step, we estimate the fair value of each reporting unit and compare it to its carrying value.
If the fair value of the reporting unit exceeds its carrying value, goodwill is not impaired and no further testing is required.
If the fair value of the reporting unit is less than its carrying value, we perform a second step to determine the amount of goodwill impairment loss, if any.
In the second step, the reporting unit’s fair value is allocated to the assets and liabilities of the reporting unit, including any unrecognized intangible assets, in an analysis that calculates the implied fair value of goodwill in the same manner as if the reporting unit were being acquired in a business combination.
If the implied fair value of the reporting unit’s goodwill is less than its carrying value, the difference is recorded as a goodwill impairment charge.
In the fourth quarter of 2014, we determined that the fair value of each reporting unit exceeded its carrying value, with the exception of the Latin America reporting unit within the Merchant Gases segment.
The Latin America reporting unit is composed predominately of our Indura business with assets and goodwill associated with operations in Chile and other Latin American countries.
Recently, economic conditions in Latin America, including the impact of tax legislation in Chile, have been less favorable due to increasing inflation, a decline in Chilean manufacturing growth, and weaker export demand for many commodities.
As a result, we lowered our growth projections for this reporting unit and determined that the associated goodwill was impaired.
We recorded a noncash goodwill impairment charge of $305.2 to write down goodwill to its implied fair value as of 1 July 2014.
This impairment is reflected on our consolidated income statements within “Goodwill and intangible assets impairment charge.
” As of 30 September 2014, accumulated impairment losses were $284.8, due to the currency impact on the loss recorded as of 1 July 2014.
For additional information on our acquisition of Indura S. A, refer to Note 5, Business Combinations.
We estimated the fair value of the Latin America reporting unit based on the income and market approaches, which were driven principally by our expectations for the Indura business.
Under the income approach, we estimated the fair value of the reporting unit based on the present value of estimated future cash flows.
Cash flow projections were based on management’s estimates of revenue growth rates and operating margins, taking into consideration business and market conditions for the Latin American countries in which we operate.
We calculated the discount rate based on a market-participant, risk-adjusted weighted-average cost of capital, which considers industry required rates of return on debt and equity capital for a target industry capital structure adjusted for risks associated with size and geography.
For the market approach, fair value was estimated based on market multiples of revenue and earnings derived from publicly-traded industrial gases companies engaged in the same or similar lines of business as that of Latin America.
We adjusted the market multiples of the comparable companies to reflect differences in size and growth prospects between Latin America and the comparable companies.
We weighted the results of the income and market approaches equally in determining the fair value of Latin America.
Management judgment is required in the determination of each assumption utilized in the valuation model, and actual results could differ from the estimates.
Prior to completing the goodwill impairment test, we tested the recoverability of the Latin America long-lived assets and concluded that they were not impaired.10.
INTANGIBLE ASSETS The table below provides details of acquired intangible assets:
## Table 3 ##
Refer to Note 1, Major Accounting Policies, for amortization periods associated with our intangible assets.
Notes to Consolidated Financial Statements Note 12.
Other Assets Other assets are generally less liquid, non-financial assets.
The table below presents other assets by type.
## Table 4 ##
1.
Net of accumulated depreciation and amortization of $9.05 billion and $8.46 billion as of December 2012 and December 2011, respectively.2.
Includes $149 million of intangible assets classified as held for sale.
See Note 13 for further information about goodwill and identifiable intangible assets.3.
See Note 24 for further information about income taxes.4.
Excludes investments accounted for at fair value under the fair value option where the firm would otherwise apply the equity method of accounting of $5.54 billion and $4.17 billion as of December 2012 and December 2011, respectively, which are included in “Financial instruments owned, at fair value.
” The firm has generally elected the fair value option for such investments acquired after the fair value option became available.5.
Includes $16.77 billion of assets related to the firm’s reinsurance business which were classified as held for sale as of December 2012.
Assets Held for Sale In the fourth quarter of 2012, the firm classified its reinsurance business within its Institutional Client Services segment as held for sale.
Assets related to this business of $16.92 billion, consisting primarily of available-for-sale securities and separate account assets at fair value, are included in “Other assets.
” Liabilities related to the business of $14.62 billion are included in “Other liabilities and accrued expenses.
” See Note 8 for further information about insurance-related assets and liabilities held for sale at fair value.
The firm expects to complete the sale of a majority stake in its reinsurance business in 2013 and does not expect to recognize a material gain or loss upon the sale.
Upon completion of the sale, the firm will no longer consolidate this business.
Property, Leasehold Improvements and Equipment Property, leasehold improvements and equipment included $6.20 billion and $6.48 billion as of December 2012 and December 2011, respectively, related to property, leasehold improvements and equipment that the firm uses in connection with its operations.
The remainder is held by investment entities, including VIEs, consolidated by the firm.
Substantially all property and equipment are depreciated on a straight-line basis over the useful life of the asset.
Leasehold improvements are amortized on a straight-line basis over the useful life of the improvement or the term of the lease, whichever is shorter.
Certain costs of software developed or obtained for internal use are capitalized and amortized on a straight-line basis over the useful life of the software.
Property, leasehold improvements and equipment are tested for impairment whenever events or changes in circumstances suggest that an asset’s or asset group’s carrying value may not be fully recoverable.
The firm’s policy for impairment testing of property, leasehold improvements and equipment is the same as is used for identifiable intangible assets with finite lives.
See Note 13 for further information.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS December 31, 2017, 2016 and 2015 (currencies in millions) 79 fixed rate interest payments based on the contractual notional amounts in a single currency.
Cross currency interest-rate swaps involve the exchange of notional amounts and interest payments in different currencies.
The Company is exposed to interest-rate and exchange-rate risk caused by market volatility as a result of its borrowing activities.
The objective of these contracts is to mitigate the fluctuations on earnings, cash flows and fair value of borrowings.
Net amounts paid or received are reflected as adjustments to interest expense.
At December 31, 2017, the notional amount of the Company’s interest-rate contracts was $2,878.4.
Notional maturities for all interest-rate contracts are $978.5 for 2018, $911.2 for 2019, $436.9 for 2020, $392.3 for 2021, $126.8 for 2022, and $32.7 thereafter.
Foreign-Exchange Contracts: The Company enters into foreign-exchange contracts to hedge certain anticipated transactions and assets and liabilities denominated in foreign currencies, particularly the Canadian dollar, the euro, the British pound, the Australian dollar, the Brazilian real and the Mexican peso.
The objective is to reduce fluctuations in earnings and cash flows associated with changes in foreign currency exchange rates.
At December 31, 2017, the notional amount of the outstanding foreign-exchange contracts was $480.4.
Foreign-exchange contracts mature within one year.
The following table presents the balance sheet classification, fair value, gross and pro forma net amounts of derivative financial instruments:
## Table 5 ##

Tables referenced above, in order (Table 0 first):
<table><tr><td></td><td colspan="3">Pension</td><td colspan="3">Other Postretirement Benefits</td></tr><tr><td>Years ended December 31,</td><td>2008</td><td>2007</td><td>2006</td><td>2008</td><td>2007</td><td>2006</td></tr><tr><td>Components of net periodic benefit cost</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Service cost</td><td>$952</td><td>$953</td><td>$908</td><td>$126</td><td>$136</td><td>$143</td></tr><tr><td>Interest cost</td><td>2,823</td><td>2,681</td><td>2,497</td><td>459</td><td>473</td><td>436</td></tr><tr><td>Expected return on plan assets</td><td>-3,811</td><td>-3,507</td><td>-3,455</td><td>-8</td><td>-8</td><td>-7</td></tr><tr><td>Amortization of prior service costs</td><td>206</td><td>200</td><td>188</td><td>-93</td><td>-88</td><td>-90</td></tr><tr><td>Recognized net actuarial loss</td><td>392</td><td>764</td><td>912</td><td>86</td><td>159</td><td>131</td></tr><tr><td>Settlement/curtailment loss</td><td></td><td>10</td><td></td><td></td><td></td><td></td></tr><tr><td>Net periodic benefit cost</td><td>$562</td><td>$1,101</td><td>$1,050</td><td>$570</td><td>$672</td><td>$613</td></tr><tr><td>Net periodic benefit cost included in Earnings from operations</td><td>$696</td><td>$1,082</td><td>$746</td><td>$507</td><td>$648</td><td>$481</td></tr></table>
<table><tr><td>Years ended December 31,</td><td>2008</td><td>2007</td><td>2006</td></tr><tr><td>Revenues</td><td>$11,338</td><td>$11,475</td><td>$11,767</td></tr><tr><td>% of Total company revenues</td><td>19%</td><td>17%</td><td>19%</td></tr><tr><td>Earnings from operations</td><td>$1,033</td><td>$862</td><td>$924</td></tr><tr><td>Operating margins</td><td>9.1%</td><td>7.5%</td><td>7.9%</td></tr><tr><td>Research and development</td><td>$298</td><td>$289</td><td>$289</td></tr><tr><td>Contractual backlog</td><td>$8,864</td><td>$9,204</td><td>$7,784</td></tr><tr><td>Unobligated backlog</td><td>$16,980</td><td>$20,133</td><td>$23,755</td></tr></table>
<table><tr><td>2008</td><td>2007</td><td>2006</td><td>2005</td></tr><tr><td>(In Thousands)</td></tr><tr><td>$42,915</td><td>$53,620</td><td>$88,231</td><td>$277,287</td></tr></table>
<table><tr><td></td><td colspan="3"> 30 September 2014</td><td colspan="3">30 September 2013</td></tr><tr><td></td><td> Gross</td><td>Accumulated Amortization/ Impairment</td><td> Net</td><td>Gross</td><td>Accumulated Amortization/ Impairment</td><td>Net</td></tr><tr><td>Customer relationships</td><td> $577.8</td><td>$-119.0</td><td> $458.8</td><td>$629.2</td><td>$-97.3</td><td>$531.9</td></tr><tr><td>Patents and technology</td><td> 82.4</td><td>-52.2</td><td> 30.2</td><td>91.3</td><td>-52.1</td><td>39.2</td></tr><tr><td>Other</td><td> 84.7</td><td>-32.5</td><td> 52.2</td><td>91.5</td><td>-35.9</td><td>55.6</td></tr><tr><td>Total finite-lived intangibles</td><td> 744.9</td><td>-203.7</td><td> 541.2</td><td>812.0</td><td>-185.3</td><td>626.7</td></tr><tr><td>Trade names and trademarks, indefinite-lived</td><td> 79.3</td><td>-4.7</td><td> 74.6</td><td>90.6</td><td>—</td><td>90.6</td></tr><tr><td>Total Intangible Assets</td><td> $824.2</td><td>$-208.4</td><td> $615.8</td><td>$902.6</td><td>$-185.3</td><td>$717.3</td></tr></table>
<table><tr><td></td><td>As of December</td></tr><tr><td><i>in millions</i></td><td>2012</td><td>2011</td></tr><tr><td>Property, leasehold improvements andequipment<sup>1</sup></td><td>$ 8,217</td><td>$ 8,697</td></tr><tr><td>Goodwill and identifiable intangibleassets<sup>2</sup></td><td>5,099</td><td>5,468</td></tr><tr><td>Income tax-related assets<sup>3</sup></td><td>5,620</td><td>5,017</td></tr><tr><td>Equity-method investments<sup>4</sup></td><td>453</td><td>664</td></tr><tr><td>Miscellaneous receivables and other<sup>5</sup></td><td>20,234</td><td>3,306</td></tr><tr><td>Total</td><td>$39,623</td><td>$23,152</td></tr></table>
<table><tr><td>At December 31,</td><td colspan="2">2017</td><td colspan="2">2016</td></tr><tr><td></td><td>ASSETS</td><td>LIABILITIES</td><td>ASSETS</td><td>LIABILITIES</td></tr><tr><td>Derivatives designated under hedge accounting:</td><td></td><td></td><td></td><td></td></tr><tr><td>Interest-rate contracts:</td><td></td><td></td><td></td><td></td></tr><tr><td>Financial Services:</td><td></td><td></td><td></td><td></td></tr><tr><td>Other assets</td><td>$53.3</td><td></td><td>$109.7</td><td></td></tr><tr><td>Deferred taxes and other liabilities</td><td></td><td>$98.3</td><td></td><td>$46.3</td></tr><tr><td>Foreign-exchange contracts:</td><td></td><td></td><td></td><td></td></tr><tr><td>Truck, Parts and Other:</td><td></td><td></td><td></td><td></td></tr><tr><td>Other current assets</td><td>3.8</td><td></td><td>3.9</td><td></td></tr><tr><td>Accounts payable, accrued expenses and other</td><td></td><td>1.9</td><td></td><td>1.9</td></tr><tr><td></td><td>$57.1</td><td>$100.2</td><td>$113.6</td><td>$48.2</td></tr><tr><td>Economic hedges:</td><td></td><td></td><td></td><td></td></tr><tr><td>Interest-rate contracts:</td><td></td><td></td><td></td><td></td></tr><tr><td>Financial Services:</td><td></td><td></td><td></td><td></td></tr><tr><td>Deferred taxes and other liabilities</td><td></td><td></td><td></td><td>$.1</td></tr><tr><td>Foreign-exchange contracts:</td><td></td><td></td><td></td><td></td></tr><tr><td>Truck, Parts and Other:</td><td></td><td></td><td></td><td></td></tr><tr><td>Other current assets</td><td>$.6</td><td></td><td>$.8</td><td></td></tr><tr><td>Accounts payable, accrued expenses and other</td><td></td><td>$.6</td><td></td><td>.3</td></tr><tr><td>Financial Services:</td><td></td><td></td><td></td><td></td></tr><tr><td>Other assets</td><td>.1</td><td></td><td>4.0</td><td></td></tr><tr><td>Deferred taxes and other liabilities</td><td></td><td>2.2</td><td></td><td>.7</td></tr><tr><td></td><td>$.7</td><td>$2.8</td><td>$4.8</td><td>$1.1</td></tr><tr><td>Gross amounts recognized in Balance Sheet</td><td>$57.8</td><td>$103.0</td><td>$118.4</td><td>$49.3</td></tr><tr><td>Less amounts not offset in financial instruments:</td><td></td><td></td><td></td><td></td></tr><tr><td>Truck, Parts and Other:</td><td></td><td></td><td></td><td></td></tr><tr><td>Foreign-exchange contracts</td><td>-.4</td><td>-.4</td><td>-1.0</td><td>-1.0</td></tr><tr><td>Financial Services:</td><td></td><td></td><td></td><td></td></tr><tr><td>Interest-rate contracts</td><td>-8.7</td><td>-8.7</td><td>-15.4</td><td>-15.4</td></tr><tr><td>Foreign-exchange contracts</td><td></td><td></td><td>-.1</td><td>-.1</td></tr><tr><td>Pro forma net amount</td><td>$48.7</td><td>$93.9</td><td>$101.9</td><td>$32.8</td></tr></table>

Question: What is the average amount of Contractual backlog of 2007, and Expected return on plan assets of Pension 2008 ?
Answer: 6507.5
Reasoning program: add(9204.0,3811.0), divide(#0,const_2)