This excerpt taken from the PNC 10-Q filed May 11, 2009.
Other-Than-Temporary Impairments (OTTI)Summary
During the first quarter of 2009, we recorded OTTI charges totaling $686 million. The credit-related portion of these impairments totaled $149 million, comprised of $145 million of OTTI on debt securities and $4 million of OTTI on equity securities, and reduced noninterest income by this amount. The noncredit portion of these impairments totaled $537 million and was included in accumulated other comprehensive loss as of March 31, 2009.