It's also important to note that "no one else" includes your friends, coworkers, family and partners - if you save passwords in the browser or forget to log out of Facebook on a computer they can access.
It is obvious that Facebook has this data, Google has your search history, a telecom has your call logs, and an ISP might have your web browsing history. However, even making it available to the user themselves opens them up for accidental or socially pressured privacy invasion.