. we recorded otti credit losses of $ 11 million on asset- backed securities during 2012 . all of the securities are collateralized by first lien and second lien residential mortgage loans and are rated below investment grade . as of december 31 , 2012 , the noncredit portion of impairment recorded in accumulated other comprehensive income for asset-backed securities for which we have recorded an otti credit loss totaled $ 52 million and the related securities had a fair value of $ 603 million