We survived but at a cost that took us years to get over, if, in fact, we actually did.
In fact the UK was broke after WWII.
It appealed to the US for support.
It got a $5Bn loan which it finished paying back around the early 2000's.
The best line about the US involvement in WWII is probably from Nicholas Montserrat in "The Cruel Sea"
"It's no way to win a war"
"Yes, but it's a great way to ensure you're in first place after it."