Microsoft has 12 billion dollar businesses. Apple has 6. Google has 1 or 2 I think (although I can't find a source for that). Sources: http://www.businessinsid

Microsoft has 12 billion dollar businesses. Apple has 6. Google has 1 or 2 I think (although I can't find a source for that). Sources: http://www.businessinsider.com/microsofts-billion-dollar-businesses-2011-10?op=1 http://www.businessinsider.com/microsofts-billion-dollar-bus... http://www.mediabizbloggers.com/group-m/Is-Radio-Apples-Seventh-Billion-Dollar-Business-Unit.html http://www.mediabizbloggers.com/group-m/Is-Radio-Apples-Seve...