She also told People Magazine in a story published on its website on Tuesday that she has not decided on her next career move. She did tell the magazine that she is "looking at a format that will allow me to engage in more multi-dimensional storytelling."
CBS has not set an exit date but is expected to appoint Scott Pelley of "60 Minutes" as her successor as early as next week.
Couric was unable to move the "CBS Evening News" out of third place in the ratings.
The Associated Press contributed to this report.