The Combat Systems group is also focused on innovative technologies and is well-positioned to participate in future development programs.
For the U. S.  Marine Corps, the group continues the design and testing of the Expeditionary Fighting Vehicle (EFV), an expeditionary combat platform designed to replace the service’s current craft.
With the EFV, the Marine Corps can launch forces from ships located beyond the horizon and proceed directly to inland objectives.
The EFV offers sea maneuverability at speeds three times the current platform’s capability and ground mobility equaling that of the Abrams tank, providing a level of flexibility and tactical surprise unparalleled in the current force structure.
We are building seven new prototypes as part of a system design and development contract, which we expect to deliver in 2010.
The group is also a member of one of three teams awarded technology demonstration contracts for the Joint Light Tactical Vehicle (JLTV), which is intended to replace a portion of the Army’s fleet of High Mobility Multi-purpose Wheeled Vehicles (HMMWV).
The Combat Systems team was the first to complete its critical design review for the JLTV in 2009.
In addition, we are well-positioned to compete for work on the Army’s next-generation Ground Combat Vehicle program, for which the customer expects to award development contracts late in 2010.
Combat Systems has a significant presence internationally and is a recognized military-vehicle integrator and leading defense-materiel provider worldwide.
It has manufacturing facilities in Australia, Austria, Brazil, Canada, France, Germany, Spain and Switzerland, and has customers in more than 30 countries.
The group’s European business offers a broad range of products, including light- and medium-weight tracked and wheeled tactical vehicles, amphibious bridge systems, artillery systems, light weapons, ammunition and propellants.
Like the group’s U. S.  products, many of these systems constitute key platforms employed by its customers’ military forces.
These include the Leopard 2E tank and the Pizarro tracked infantry vehicle, produced for the Spanish army; the Pandur II armored combat vehicle, produced for the Portuguese army and navy; the Eagle wheeled vehicle for Germany; and the Piranha wheeled armored vehicle, which the group has sold to several European countries.
Combat Systems also is experiencing increased international demand beyond Europe as a result of the demonstrated success of its fielded products.
In particular, the group has contracts to provide Abrams tanks and light armored vehicles to a number of U. S.  allies in the Middle East.
The group is also a global manufacturer and supplier of highly engineered axles, suspensions, brakes and aftermarket parts for heavy-payload vehicles for a variety of military and commercial customers.
The Combat Systems group continues to focus on operational execution across the business as it delivers on its substantial backlog.
In an environment of continuously expanding threats and evolving customer needs, including an increased emphasis on speed to market, the group remains focused on its customers’ requirements and the opportunities they present.
Revenues for the Combat Systems group were 30 percent of our consolidated revenues in 2009, 28 percent in 2008 and 29 percent in 2007.
Revenues by major products and services were as follows:
## Table 0 ##
MARINE SYSTEMS Our Marine Systems group designs, builds and supports submarines and surface ships for the U. S.  Navy and commercial ships for Jones Act customers.
The group is one of two primary shipbuilders for the Navy.
The group’s diverse portfolio of platforms and capabilities includes: ?
nuclear-powered submarines (Virginia Class); ?
surface combatants (DDG-51, DDG-1000, LCS); ?
auxiliary and combat-logistics ships (T-AKE); ?
commercial ships; ?
design and engineering; and ?
overhaul, repair and lifecycle support services.
The substantial majority of Marine Systems’ workload supports the U. S.  Navy.
These efforts include the construction of new ships and the design and development of next-generation platforms to help the customer meet evolving missions and maintain its desired fleet size, as well as maintenance and repair services to maximize the life and effectiveness of in-service ships.
This business consists primarily of major ship-construction programs awarded under large, multi-ship contracts that span several years.
The group’s mature Navy construction programs consist of the fast-attack Virginia-class nuclear-powered submarine, the Arleigh Burke-class (DDG-51) guided-missile destroyer and the Lewis and Clark-class (T-AKE) dry cargo/ammunition combatlogistics ship.
The Virginia-class submarine is the first U. S.  submarine designed to address post-Cold War threats, including capabilities tailored for both open-ocean and littoral missions.
These stealthy ships are well-suited for a variety of global assignments, including intelligence gathering, specialoperations missions and sea-based missile launch.
NOTE 13 EMPLOYEE BENEFIT PLANS Pension And Postretirement Plans We have a noncontributory, qualified defined benefit pension plan covering eligible employees.
Benefits are determined using a cash balance formula where earnings credits are a percentage of eligible compensation.
Earnings credit percentages for those employees who were plan participants on December 31, 2009 are frozen at their level earned to that point.
Earnings credits for all employees who become participants on or after January 1, 2010 are a flat 3% of eligible compensation.
Plan participants at December 31, 2009 earn interest based on 30-year Treasury securities with a minimum rate, while new participants on or after January 1, 2010 are not subject to the minimum rate.
Pension contributions are based on an actuarially determined amount necessary to fund total benefits payable to plan participants.
We also maintain nonqualified supplemental retirement plans for certain employees and provide certain health care and life insurance benefits for qualifying retired employees (postretirement benefits) through various plans.
The nonqualified pension and postretirement benefit plans are unfunded.
PNC currently intends to begin funding some or all of the postretirement medical benefit obligations through a voluntary employee beneficiary association (VEBA) in mid-to-late 2015.
PNC reserves the right to terminate plans or make plan changes at any time.
We use a measurement date of December 31 for plan assets and benefit obligations.
A reconciliation of the changes in the projected benefit obligation for qualified pension, nonqualified pension and postretirement benefit plans as well as the change in plan assets for the qualified pension plan follows.
Table 109: Reconciliation of Changes in Projected Benefit Obligation and Change in Plan Assets
## Table 1 ##
Visa Indemnification Our payment services business issues and acquires credit and debit card transactions through Visa U. S. A.  Inc.  card association or its affiliates (Visa).
In October 2007, Visa completed a restructuring and issued shares of Visa Inc.  common stock to its financial institution members (Visa Reorganization) in contemplation of its initial public offering (IPO).
As part of the Visa Reorganization, we received our proportionate share of Class B Visa Inc.  common stock allocated to the U. S.  members.
Prior to the IPO, the U. S.  members, which included PNC, were obligated to indemnify Visa for judgments and settlements related to certain specified litigation.
As a result of the acquisition of National City, we became party to judgment and loss sharing agreements with Visa and certain other banks.
The judgment and loss sharing agreements were designed to apportion financial responsibilities arising from any potential adverse judgment or negotiated settlements related to the specified litigation.
In September 2014, Visa funded $450 million into its litigation escrow account and reduced the conversion rate of Visa B to A shares.
We continue to have an obligation to indemnify Visa for judgments and settlements for the remaining specified litigation.
Recourse and Repurchase Obligations As discussed in Note 2 Loan Sale and Servicing Activities and Variable Interest Entities, PNC has sold commercial mortgage, residential mortgage and home equity loans/ lines of credit directly or indirectly through securitization and loan sale transactions in which we have continuing involvement.
One form of continuing involvement includes certain recourse and loan repurchase obligations associated with the transferred assets.
Commercial Mortgage Loan Recourse Obligations We originate and service certain multi-family commercial mortgage loans which are sold to FNMA under FNMA’s Delegated Underwriting and Servicing (DUS) program.
We participated in a similar program with the FHLMC.
Under these programs, we generally assume up to a one-third pari passu risk of loss on unpaid principal balances through a loss share arrangement.
At December 31, 2014 and December 31, 2013, the unpaid principal balance outstanding of loans sold as a participant in these programs was $12.3 billion and $11.7 billion, respectively.
The potential maximum exposure under the loss share arrangements was $3.7 billion at December 31, 2014 and $3.6 billion at December 31, 2013.
We maintain a reserve for estimated losses based upon our exposure.
The reserve for losses under these programs totaled $35 million and $33 million as of December 31, 2014 and December 31, 2013, respectively, and is included in Other liabilities on our Consolidated Balance Sheet.
If payment is required under these programs, we would not have a contractual interest in the collateral underlying the mortgage loans on which losses occurred, although the value of the collateral is taken into account in determining our share of such losses.
Our exposure and activity associated with these recourse obligations are reported in the Corporate & Institutional Banking segment.
Table 150: Analysis of Commercial Mortgage Recourse Obligations
## Table 2 ##
Residential Mortgage Loan and Home Equity Loan/ Line of Credit Repurchase Obligations While residential mortgage loans are sold on a non-recourse basis, we assume certain loan repurchase obligations associated with mortgage loans we have sold to investors.
These loan repurchase obligations primarily relate to situations where PNC is alleged to have breached certain origination covenants and representations and warranties made to purchasers of the loans in the respective purchase and sale agreements.
Repurchase obligation activity associated with residential mortgages is reported in the Residential Mortgage Banking segment.
In the fourth quarter of 2013, PNC reached agreements with both FNMA and FHLMC to resolve their repurchase claims with respect to loans sold between 2000 and 2008.
PNC paid a total of $191 million related to these settlements.
PNC’s repurchase obligations also include certain brokered home equity loans/lines of credit that were sold to a limited number of private investors in the financial services industry by National City prior to our acquisition of National City.
PNC is no longer engaged in the brokered home equity lending business, and our exposure under these loan repurchase obligations is limited to repurchases of loans sold in these transactions.
Repurchase activity associated with brokered home equity loans/lines of credit is reported in the Non-Strategic Assets Portfolio segment.

Tables referenced above, in order (Table 0 first):
<table><tr><td> Year Ended December 31</td><td> 2009</td><td> 2008</td><td> 2007</td></tr><tr><td>Medium armored vehicles</td><td>$4,225</td><td>$3,570</td><td>$3,265</td></tr><tr><td>Main battle tanks</td><td>1,670</td><td>1,567</td><td>1,430</td></tr><tr><td>Munitions and propellant</td><td>1,313</td><td>1,278</td><td>1,276</td></tr><tr><td>Engineering and development</td><td>961</td><td>676</td><td>598</td></tr><tr><td>Rockets and missile components</td><td>469</td><td>394</td><td>294</td></tr><tr><td>Armament and detection systems</td><td>459</td><td>580</td><td>761</td></tr><tr><td>Drive train components and other</td><td>548</td><td>129</td><td>173</td></tr><tr><td>Total Combat Systems</td><td>$9,645</td><td>$8,194</td><td>$7,797</td></tr></table>
<table><tr><td></td><td colspan="2">Qualified Pension</td><td colspan="2">Nonqualified Pension</td><td colspan="2">Postretirement Benefits</td></tr><tr><td>December 31 (Measurement Date) – in millions</td><td>2014</td><td>2013</td><td>2014</td><td>2013</td><td>2014</td><td>2013</td></tr><tr><td>Accumulated benefit obligation at end of year</td><td>$4,427</td><td>$3,890</td><td>$316</td><td>$287</td><td></td><td></td></tr><tr><td>Projected benefit obligation at beginning of year</td><td>$3,966</td><td>$4,512</td><td>$292</td><td>$362</td><td>$375</td><td>$394</td></tr><tr><td>Service cost</td><td>103</td><td>113</td><td>3</td><td>3</td><td>5</td><td>6</td></tr><tr><td>Interest cost</td><td>187</td><td>170</td><td>12</td><td>12</td><td>16</td><td>14</td></tr><tr><td>Plan amendments</td><td>-7</td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Actuarial (gains)/losses and changes in assumptions</td><td>504</td><td>-453</td><td>40</td><td>-26</td><td>4</td><td>-9</td></tr><tr><td>Participant contributions</td><td></td><td></td><td></td><td></td><td>8</td><td>13</td></tr><tr><td>Federal Medicare subsidy on benefits paid</td><td></td><td></td><td></td><td></td><td>2</td><td>2</td></tr><tr><td>Benefits paid</td><td>-254</td><td>-376</td><td>-25</td><td>-20</td><td>-31</td><td>-34</td></tr><tr><td>Settlement payments</td><td></td><td></td><td></td><td>-39</td><td></td><td>-11</td></tr><tr><td>Projected benefit obligation at end of year</td><td>$4,499</td><td>$3,966</td><td>$322</td><td>$292</td><td>$379</td><td>$375</td></tr><tr><td>Fair value of plan assets at beginning of year</td><td>$4,252</td><td>$4,009</td><td></td><td></td><td></td><td></td></tr><tr><td>Actual return on plan assets</td><td>359</td><td>619</td><td></td><td></td><td></td><td></td></tr><tr><td>Employer contribution</td><td></td><td></td><td>$25</td><td>$59</td><td>$21</td><td>$30</td></tr><tr><td>Participant contributions</td><td></td><td></td><td></td><td></td><td>8</td><td>13</td></tr><tr><td>Federal Medicare subsidy on benefits paid</td><td></td><td></td><td></td><td></td><td>2</td><td>2</td></tr><tr><td>Benefits paid</td><td>-254</td><td>-376</td><td>-25</td><td>-20</td><td>-31</td><td>-34</td></tr><tr><td>Settlement payments</td><td></td><td></td><td></td><td>-39</td><td></td><td>-11</td></tr><tr><td>Fair value of plan assets at end of year</td><td>$4,357</td><td>$4,252</td><td></td><td></td><td></td><td></td></tr><tr><td>Funded status</td><td>$-142</td><td>$286</td><td>$-322</td><td>$-292</td><td>$-379</td><td>$-375</td></tr><tr><td>Amounts recognized on the consolidated balance sheet</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Noncurrent asset</td><td></td><td>$286</td><td></td><td></td><td></td><td></td></tr><tr><td>Current liability</td><td></td><td></td><td>$-31</td><td>$-28</td><td>$-25</td><td>$-29</td></tr><tr><td>Noncurrent liability</td><td>$-142</td><td></td><td>-291</td><td>-264</td><td>-354</td><td>-346</td></tr><tr><td>Net amount recognized on the consolidated balance sheet</td><td>$-142</td><td>$286</td><td>$-322</td><td>$-292</td><td>$-379</td><td>$-375</td></tr><tr><td>Amounts recognized in accumulated other comprehensive income consist of:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Prior service cost (credit)</td><td>$-22</td><td>$-23</td><td>$1</td><td>$1</td><td>$-4</td><td>$-6</td></tr><tr><td>Net actuarial loss</td><td>673</td><td>239</td><td>88</td><td>52</td><td>31</td><td>27</td></tr><tr><td>Amount recognized in AOCI</td><td>$651</td><td>$216</td><td>$89</td><td>$53</td><td>$27</td><td>$21</td></tr></table>
<table><tr><td>In millions</td><td>2014</td><td>2013</td></tr><tr><td>January 1</td><td>$33</td><td>$43</td></tr><tr><td>Reserve adjustments, net</td><td>2</td><td>-9</td></tr><tr><td>Losses – loan repurchases and settlements</td><td></td><td>-1</td></tr><tr><td>December 31</td><td>$35</td><td>$33</td></tr></table>

Question: what was the average balance in millions for commercial mortgage recourse obligations as of december 31 2014 and 2013?
Answer: 34
Reasoning program: add(35,33), divide(#0,const_2)