http://news.bbc.co.uk/1/hi/business/7630508.stm
http://www.guardian.co.uk/business/feedarticle/7817577
and they only have $25 billion spare cash lying around, meaning they'll be in debt by $15 billion
http://uk.finance.yahoo.com/q/bs?s=MSFT&annual
*edit*
well, alright
it'll be bought back over a few years
so whether they'll actually go into the red is anyone's guess