I believe this is an old figure. The $5B figure from a few weeks ago was probably close to the previous quarter's total.
As of the latest quarter, this is all I could find anywhere;
"The company saw a $3.85 billion decline in cash from operating and investing activities in the first six months of the fiscal year, resulting in a 27% drop in cash and cash equivalents, year over year."
Couple that with the recent news of issuing convertible bonds and one can conclude that the company is in dire need of cash. And convertible bonds means they had to put up shareholder dilution as it's means of getting that needed cash.
Very sad that Yahoo can't post the accurate figures or post a link with the most recent figures. Marketwire usually breaks the numbers down well, but I saw no Marketwire release on Yahoo.