Easterbrook said he had "failed at times to uphold McDonald's values and fulfil certain of my responsibilities as a leader of the company. I apologise to my former co-workers, the board, and the company's franchisees and suppliers for doing so."
McDonald's terminated Easterbrook's employment "without cause" in November 2019 for violating company policy by having what he said was one consensual relationship with an employee. That allowed him to receive severance benefits estimated to be worth $40m.
In August 2020, however, the company announced that it had reopened an investigation into the divorced executive's conduct after an anonymous tip alleged he had had another such relationship.
That investigation led McDonald's to sue Easterbrook, alleging he had engaged in three "physical sexual relationships" with employees beyond the liaison he had admitted to, including with one woman to whom he approved a stock grant worth hundreds of thousands of dollars.
The company alleged that Easterbrook had lied to the board about the relationships and deleted emails from a phone, although corporate servers retained dozens of explicit photos and videos he had sent from the account.
Easterbrook's lawyers had called the lawsuit "meritless", challenging the Illinois-based company's right to bring it in the Delaware Court of Chancery and saying that McDonald's had always been in possession of the details it claimed to have uncovered because they sat on company servers.
The Delaware court had rejected Easterbrook's motion to dismiss the lawsuit, and the case had been heading for trial.
Corporate lawyers and business school academics said when the allegations emerged they knew of few precedents for such a public feud, with most disputes between companies and their former executives settled away from the glare of media attention.
But the legal battle reflected the #MeToo movement's impact on companies' willingness to tolerate managers having intimate relationships with subordinates, they added, and came after advocacy groups had accused McDonald's of doing too little to prevent sexual harassment in its restaurants.
The company's handling of Easterbrook's exit package caused an investor backlash, with shareholders including Neuberger Berman and New York City pension funds publicly opposing the re-election of McDonald's compensation committee chair at its latest annual meeting.
In a message to employees and franchisees seen by the Financial Times, Hernandez said the board was proud of the progress made under Easterbrook's successor, Chris Kempczinski, to strengthen the McDonald's culture and re-emphasise values that "have always been our north star".