You and AMFA_RV4_Decision2525 are the best salesmen the TWU could ever ask for.
I don't know the exact interest rate spread between AA's cash and its loans, but AA's interest payments and interest earnings provide a pretty good clue:
In the first quarter, AA paid $261 million in interest expense on its total debt (like $20 billion or so) and earned $53 million of interest on its cash of about $4.8 billion. Doesn't even take an A&P license to see the proportionality in those numbers.
Every time you say something stupid like "AA is set to make a profit, despite fuel prices, sitting on billions of cash that they have to pay hundreds of millions of dollars a year in intrest on, keeping scores of underutilized aircraft and ambitious costly capital improvment projects" the TWU ought to send you a check, as it helps ensure the TWU keeps swimming in dues courtesy of your co-workers.