And of that military spending, IIRC >=50% is only allowed to be spent on purchasing from US companies (i.e. driving US military innovation) and IIUC from 2019 onwards that percentage will go up to 100%, so it will primarily drive US military innovation (and at the same time discourage Israeli military innovation, since the Israeli government will be less likely to spend money on local military products)
It is easy to gauge how much goes to military spending. Practically all of it if we go by previous years: https://en.wikipedia.org/wiki/File:US_aid_to_Israel.gif
And of that military spending, IIRC >=50% is only allowed to be spent on purchasing from US companies (i.e. driving US military innovation) and IIUC from 2019 onwards that percentage will go up to 100%, so it will primarily drive US military innovation (and at the same time discourage Israeli military innovation, since the Israeli government will be less likely to spend money on local military products)