Lending through the Federal Reserve Board's discount window fell 13.4% during the past week, to $115.2 billion.
Traditional borrowing by commercial banks declined 16.7%, to $48.3 billion, and there was $62 million of loans to unhealthy banks, up from just $1 million a week earlier.
Loans to investment banks were down 26.8%, to $13.4 billion.
The Fed said it had extended $45.1 billion by Wednesday through the discount window to support American International Group. The central bank also has a limited liability corporation designed to help the insurance giant. Loans there were valued at $18.2 billion.
Lending against ABCP held by money market mutual funds was off 39.8%, to $3.7 billion. The Fed has yet to make loans to another limited-liability corporation that will buy unsecured assets held by money markets.
The balance sheet also reflects the $4.7 billion the Fed has lent by Wednesday through the Term Asset-Backed Securities Loan Facility (TALF). The Federal Reserve Bank of New York said on Tuesday that it lent an additional $1.7 billion through the program but that amount does not settle until April 14.
Meanwhile, the New York Fed purchased $74.7 billion of mortgage-backed securities from the government-sponsored enterprises during the past week: $52.7 billion from Fannie Mae; $21.2 billion from Freddie Mac and $850 million from Ginnie Mae. Total purchases grew 9% during the week.