Is 100 billion really that much? The church has 16 million members. That is about $6,000 per member. The church has had 200 years of tithing and compound interest to get to this point. If used as an endowment to support 16 million people in 170+ countries that doesn't seem too crazy. A single human (not mentioning any names) having 100 billion seems crazy.
And 16 million members is fools' accounting. It doesn't account for the millions of people like me who don't go to church and yet are still members because I don't want to pay money to hire a lawyer to force the church to take my name off the records.
[0] https://kutv.com/news/local/mormonleaks-says-new-documents-l...