I believe we were around 125-130k employees about 2 years ago (post-covid).
Rumour was a report was made by one of the high-end consultancy firms in US that a 100-billion company should be able to operate with approx. 100k employees, that would be a "healthy" ratio apparently. That report was delivered to the ELT.
Seeing what happened through 2023 and now in 2024, it's safe to say the thing about that report is no longer a rumour, but reality. With +/- 13k WFR's globally in 2023 and 12,5k WFR happening now again, they're exactly executing to that report as it seems.