Remember the most expensive ever Google product? Plus?
Right...
I tried to search for a number, but couldn't come up with much. Obviously, this number would be very important in judging whether self-driving will be a loss for them.
The wikipedia also mentions Waymo raising ~2B and ~3b rounds that IIRC Google participated in as well. I'm surprised its so low honestly.
If you are willing to wait and just judge by eventually realised revenue, Waymo might still turn out to be a loss. But if you judge by current valuations (which reflect informed investors best guess of future revenue streams), then even after a recent major decrease we still have 30 billions USD.
That looks pretty decent for an investment of 1.1B + ~3B total.