Dec. 12 (Bloomberg) -- Bank of America Corp., Wachovia Corp. and PNC Financial Services Group Inc. said losses tied to bad debt will be worse than expected, providing fresh evidence that credit markets aren't returning to normal.

All three fell in New York trading today as Bank of America Chief Executive Officer Kenneth Lewis predicted disruptions will stretch into next year at his company, the second-biggest U.S. bank. Wachovia, ranked fourth, said it may set aside twice as much for loan losses than planned in this quarter and that writedowns already equal the third quarter's total. PNC, ranked 11th, said quarterly profit will be less than analysts estimated.

Today's announcements show bankers see no quick end to losses and writedowns, which total about $80 billion this year at the world's biggest financial companies. Lewis said loan losses will increase in 2008 at Bank of America and Wachovia Chief Executive Officer Kennedy Thompson said conditions are the ``toughest'' in his 32-year career.

Dec. 12 (Bloomberg) -- Sallie Mae, the biggest U.S. education lender, dropped the most in 14 years in New York trading after cutting its 2008 earnings forecast and saying J.C. Flowers & Co. refused to reopen acquisition negotiations..