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 2019s 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 .
what was the change in millions for commercial mortgage recourse obligations between december 31 2014 and 2013?
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 2019s 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 . 214 the pnc financial services group , inc . 2013 form 10-k .