lehman bankruptcy claims

Lehman Bros can file bankruptcy even though they have 8 billion dollars?
Bankruptcy is for persons who haven’t the means to pay and need to re establish credit status and was for the protection of people to survive years that were not productive. How can someone claim
bankruptcy with eight billion…??? I am confused again…
If you have 8 billion but owe 80 billion, you are bankrupt. The legal definition of bankrupt doesn’t mean you have ZERO assets, it means you have insufficient assets and little hope of changing that under your current obligations and opportunities.



