$6.2B cash on hand, $38.6B in assets.

UAL Balance Sheet | United Continental Holdings Stock - Yahoo! Finance

And in case you read further and see the $37B in liabilities consider DAL has just $2.9B in cash with $45.8B in liabilities--and they have no problem compensating pilots well and cash-incentivizing contract completions over and over again.

DAL Balance Sheet | Delta Air Lines Inc. (New) Comm Stock - Yahoo! Finance

Four/three years since amenable nothing to do with cash, it has to with the attitude that labor is not needed for this merger.