Graduate Program applicants have rated the interview process at 3M with 3 out of 5 (where 5 is the highest level of difficulty) and assessed their interview experience as 100% positive. To compare, the company-average is 69.1% positive. This is according to Glassdoor user ratings.
Here are the most commonly searched roles for interview reports -
Three interviews: One phone, one group, one individual. The first one is without notice. The last one is with the people who would be your managers in your assigned position.