If you borrow $300 billion you still have $300 billion in assets. Unless something unexpected changes, Ford won't be able to realize that Enterprise value. The number of car companies will shrink, not grow, evs are just the wave over the horizon that will really hurt them. Tesla actually has a chance to drastically grow their sales.
(B). The company is worth $300 billion to the bondholders, and $0 to shareholders, giving a total value of $300 billion.
And that's assuming the company is being liquidated. Most companies with viable businesses are worth a lot more than their assets because the big part of the valuation is assumed future earnings.
So you can create infinite value by borrowing more and more money.
I'd love to create lots of value for you by borrowing money from you. I would even consent to not destroy any of that value through making payments.
The bond is worth $300b to the bondholders, but only because it is expected to be paid back and is secured by the $300b assets. You can prove that by assuming those assets disappeared: how much is the bond (or the company) worth to the bondholders then?
Every single fair transaction has a net value of $0. If I buy a chocolate bar for $1 that's worth a dollar to me, I'm up one chocolate bar worth $1 and down a dollar. No net worth change, but it is validation the chocolate bar is worth $1.