It's not really a decline actually. Technically, it's an expected growth, that will not take place for the year to come and the next, probably.
2 Years stagnation if you want...But still, with 100 Billion Dollars revenues per year.
That's still a lot of cash and they have much more in reserve to sustain much worse than that and still keep growing.
OK, maybe, but general rule is that no company can defeat state and especially when it is state as rich as USA.
That is why nobody ever bets against a state.