I went through this in late 2016. In terms of severance, it's quite clear:
UK: the terms are in your contract. If you're not new, I believe you're entitled to 6 months pay + 1 month per year of employment. Pretty straightforward.
US: if you're Band K, you get 12 months. If you're Band J, you get 6 months. If you're Band I, you get something like 1 week per year of employment. I knew people who got 1-3 months in Band I. Below that, nothing unless you're on an old contract that takes into account years of service.
Overall, about 10% of those cut will receive a package (this was the case in 2016). If you're in the US, don't plan on it -- if you're not in the salary/role bands above, forget it.
TR has a good name in the market. All the disfunction that seems so evident and prevalent when you've been through multiple re-orgs doesn't affect the view of TR to the rest of the industry. C