Headcount reductions do not necessarily indicate layoffs. You can let contractors go - sorry, we are not renewing your contract. You can reassign employees to areas that need people. Or you can just not fill vacancies as they occur, or declare that you will not be filling vacancies that have already happened.
RE: You can reassign employees to areas that need people.
I don’t think these are considered or counted as layoffs. I’ve been reassigned several times to other areas of our business, I still have a job.