The Treasury Department said Thursday it will sell $45 billion of four-week discount bills Tuesday, down from $50 billion last week.
There are currently $74.990 billion of four-week bills outstanding.
The bills settle Jan. 18 and are due Feb. 15.
Federal Reserve banks hold nothing in maturing bills in their own accounts.
Treasury will auction $48 billion 91-day bills and $42 billion 182-day discount bills Tuesday.
The 91s settle Jan. 18, and are due April 19, and the 182s settle Jan. 18, and are due July 190.
Currently, there are $36.000 billion 91-days outstanding and $19.999 billion 182s.
Treasury also said it will auction $13 billion 10-year inflation-indexed bonds on Jan. 18.
The notes are dated Jan. 15, and due Jan. 15, 2028.