The stimulus package the U.S. Congress is completing would raise the government's commitment to solving the financial crisis to $9.7 trillion, enough to pay off more than 90 percent of the nation's home mortgages.

The Federal Reserve, Treasury Department and Federal Deposit Insurance Corporation have lent or spent almost $3 trillion over the past two years and pledged to provide up to $5.7 trillion more if needed. The total already tapped has decreased about 1 percent since November, mostly because foreign central banks are using fewer dollars in currency-exchange agreements called swaps.