From what I can gather today everything I am hearing is that Layoff's are being done in US.
At time of this post (now 2 PM) on East Coast our offices are now closed in Europe and I haven't heard anything from teams over there about Layoffs. It's only 11AM on West Coast and I have already heard from teams there about departures - I suspect both Texas and California will be reporting large layoffs.
To gain $1B in savings we are probably looking at 8 -10% of workforce being let go when this is completed.