The bonuses were paid out at the end of 2015. It was shortly after that that Levandowski revealed Otto to the world. Plus Chris Urmson started Aurora, and Brian Salesky went on to become CEO of Argo, which is Ford's autonomous Driving subsidiary.
They all got some kind of huge bonus. It supposedly amounted to a 14% rise in the aggregated quarterly expenses of Alphabets 'other bets', which lumps together a bunch of Alphabet's moonshot subsidiaries.
https://spectrum.ieee.org/robotics/artificial-intelligence/t...
(Note the date: this is well before Otto and the Uber/Waymo flap.)
It probably is counted in the $1.1B spent on self-driving tech though.