A minor point, but they certainly do not have $36B cash on hand, they have it in assets that can be liquidated reasonably quickly, but companies do not keep $36B lying around, or in the bank. It is stashed in short term investments.
for eg. if the Greek government owed me $1B, I wouldn't call that cash on hand, but if the US government owed me $1B, it is
http://investor.google.com/earnings/2010/Q4_google_earnings....