How much did the ITER tokamak cost?

I'm curious to know, just how much did the construction and development of the ITER tokamak project ultimately cost? Was it a staggering amount that far exceeded initial projections, or did it come in under budget? And given the scale and complexity of this ambitious fusion energy endeavor, what factors influenced the final cost tally? I'm eager to gain a deeper understanding of the financial implications behind this groundbreaking scientific pursuit.