Net debt of $4B is about $6B in obligations minus liquid assets of about $2B. This is completely achievable within the next 2 years. This will probably trigger a corporate debt rating of investment grade or better by the major ratings agencies. (Moody's and S&P) This will allow them to finance business activities via the bond market saving them even more money and increasing access to funds. They recently collateralized 15 new 737's to retire higher interest debt. The amount of money available to them in 18 to 24 months could be enough to take activist stakes in all the airlines they have already made investments in.