Don't confuse years and quarters. Their quarterly loss is $1.5B. If we accept a $3B yearly salary cost (I expect it's actually a lot lower, because their 12,000 worldwide employees, I think, include lots of local employees at far-flung cities who probably have very low salaries by silicon-valley-programmer standards), and extrapolate their quarterly loss to a year, then they could cut all of their salaries to 0 and still only reduce their loss from $6B/year to $3B/year.