This term encompasses all the debt instruments issued by the U.S. Treasury in order to borrow money to help run the federal government. Treasury bills mature in less than one year; Treasury notes mature between one and 10 years; Treasury bonds mature after at least 10 years.

Generally, Treasury notes, bills, or bonds issued and guaranteed by the U.S. government.

Interest-bearing obligations if the U.S. government issued by the U.S. Department of the Treasury as a means of borrowing money to meet government expenditures not covered by tax revenues. There are three types of marketable Treasury securities-bills, notes and bonds.

Direct obligations of the U.S. Government, issued by the U.S. Treasury's Bureau of Public Debt as a means of financing the Federal Government. There are three types of securities issued: Treasury bills (T-bills), Treasury bonds, and Treasury notes.

Unamortized bond discount Unsecured debt