Liability can be servered from a operational buisness unit, but it basically requires the court intervention to formalize the seperation. Liability follows the functional business so that sale can't be used to evade liability.
Imagine if this wasnt the case. 3M could take on 100B debt, sell the bussness & assets to "4M" , leaving "3M" with no funds or assets for the creditors to go after.
https://www.ballardspahr.com/insights/alerts-and-articles/20....
