The former Olympian, once known as Bruce, explained that showing off her new look and revealing her name signified the end of constant secret-keeping.
"Bruce always had to tell a lie. He was always living that lie," she told the magazine. "Caitlyn doesn’t have any secrets. Soon as the Vanity Fair cover comes out, I’m free."
That's not all she revealed. Here are five other details from what's been shared of the story thus far.
1. Facial-feminization surgery was anxiety-inducing: Jenner told Vanity Fair that her 10-hour facial-feminization surgery -- a procedure she thought would take half that time -- caused her to have a panic attack afterward. She spoke to a professional about her worry that she'd made a big mistake, though that concern has passed: “If I was lying on my deathbed and I had kept this secret and never ever did anything about it, I would be lying there saying, ‘You just blew your entire life. You never dealt with yourself,’ and I don’t want that to happen," she explained. Jenner also said that she has not had genital surgery.
2. Caitlyn is not sensitive about what Vanity Fair called "pronoun confusion": “I don’t really get hung up,” she said. “A guy came in the other day and I was fully dressed -- it’s just habit, I said, ‘Hi, Bruce here,’ and I went, Oh f***, it ain’t Bruce! I was screwing up doing it.”
3. Jenner's children will not appear in her reality series: Jenner, who is filming a reality series with E!, admitted that at first, she was "terribly disappointed and terribly hurt" by their decision, but she has since come around.
4. Jenner now enjoys "girls" nights': She enjoys hosting other women for gatherings involving wine and snacks. At one such event, she introduced herself to her daughter, Cassandra, for the first time. Despite being nervous at first, "we talked more than we ever have," Cassandra told the magazine. "We could just be girls together.”
5. Jenner insists that the transition is for personal, not professional, gain: The reality TV star addressed critics who have chalked up her transition to a publicity stunt: "I’m not doing it for money. I’m doing it to help my soul and help other people," she said. "If I can make a dollar, I certainly am not stupid. [I have] house payments and all that kind of stuff. I will never make an excuse for something like that. Yeah, this is a business. You don’t go out and change your gender for a television show. O.K., it ain’t happening. I don’t care who you are."