1. One would only get about half that since the “billion” is based on getting it in 20 year installments.
2. It would be a metsiah (something found), not income, so probably not subject to the usual limits on
giving tsdakah.
3. There might be some taxes to pay.
4. One can always use a donor advised trust to send the money to the institutions in the name of “Piloni Almoni”.