http://www.businessinsider.com/aaa-...1-8?utm_source=twitterfeed&utm_medium=twitter
It's a sea change from the early 1980s, when the top rating was coveted. Back then, 60 U.S. corporations held the title. By 1995, half as many were rated AAA.
Today, it's only four: Microsoft, Exxon Mobil, Johnson & Johnson and Automatic Data Processing.