Letter from IRS regarding taxabel interest paid

I received a letter from the IRS with this:  "THIS IS NOT A TAX BILL.  It shows the taxable interest paid to during the calendar year by the Internal Revenue Service.  If you are required to file a tax return, report this interest as income on your return ..."

This feels like a 1099-INT, but it is not an actual 1099-INT.  Where should I report this?  1099-INT, with the amount "Total Interest Paid or Credited" as Box 1?