Applied online (basic resume, cognitive assessment, etc) and was contacted for a phone interview. Phone interview lasted nearly 2 hours (though it was supposed to be only 45 minutes) and was a behavioral interview. Interviewer was very comfortable and natural. Asked me to answer questions using the CAR method (Context, Action, Results) and allowed me to take my time when responding. The reason the interview took so long was because he would often ask secondary questions to get more out of my initial response. At the end he even emailed me a link to P&G's interviewing tips/guidelines page and offered his assistance to review my first interview later on to help me prepare for my on-site interview if I was called back for one. After being called back for an on-site interview, I was able to speak with my initial phone interviewer to review opportunities for improvement from my first interview, which was extremely helpful and definitely made the on-site interview less intimidating.
On-site interview (as part of the CBD Intern Conference at HQ):
On-site interview was with 2 current employees in the CBD function. Lasted about 20 minutes and was very laid-back. They seemed to have access to the responses from my first interview and bounced questions off of that (and off of each other). Was not very repetitive of the phone interview. My impression was that the phone-interview was where they really made cuts whereas the on-site interview was more of just making sure the applicant is socially competent and can be relatable, professional, and personable. Interview was followed by a math competence test.