Largest Spending Programs in the Federal Budget: FY2002 Outlays Over $10 Billion [Updated April 30, 2003] [open pdf - 19KB]
From the Document: "In FY2002, federal outlays totaled $2,011 billion. Mandatory spending, not including net interest, ($1,106 billion) accounted for 55.0% of total federal outlays, while discretionary spending ($734 billion) accounted for 36.5%. Outlays for net interest ($171 billion) accounted for 8.5%. FY2002 is the most recent fiscal year for which actual outlays are available. This fact sheet identifies the largest spending programs with outlays greater than $10 billion. For more information on budget process, see [http://www.crs.gov/products/guides/guidehome.shtml]."
CRS Report for Congress, 98-319