In a statement today, Fox parent company 21st Century said that "we regret and apologise for the fact that Gretchen was not treated with the respect and dignity that she and all of our colleagues deserve."
Carlson was paid USD 20 million, according to someone familiar with the confidential settlement who spoke under condition of anonymity.
Carlson alleged that she was demoted and let go from Fox after she refused Ailes' sexual advances and complained about workplace harassment.
In a statement, Carlson said she was ready to move on to the next chapter in her life, and plans to help empower women in the workplace.
"I want to thank all the brave women who came forward to tell their own stories and the many people across the country who embraced and supported me," she said.