Is'nt Bombardier Broke? (In more senses than one)

Bombardier's book value per share is approximately NEGATIVE $2.72 per share (Negative $6.086 billion in common equity and 2.239 billion shares as of June 30, 2017.) 

The company has some value but that value appears to be more than fully owned by the debt holders. How can there be any discussion of a future for the company without acknowledging that Bombardier's own balance sheet indicates there is less than zero value in the common equity?