Unfortunately, you still will probably end up fighting. Unless you have amazing insurance, you probably will have to pay a deductible (usually a couple thousand, mine is $1500), after which insurance will pay 80% or 90% of the remaining bill up to a yearly out of pocket maximum (which varies pretty wildly - i know people with 50k max, 20k max, 15k max, etc).

The prices on your bill are also before the insurance company negotiates, so don't look at the percentages I named vs the 140k they're charging you.

As someone who spent a lot of his youth in hospitals and now is immune to most everything and a tolerance for pain that makes nurses squeamish -- our healthcare system has changed a lot in 20 years, and not for the better.