From wiki:
A billion dollars? You're talking out the wrong end, bkepley.
The late 1990s saw a resurgence in Trump's financial situation. The will of Trump's father, who died in 1999, divided an estate estimated at $250–$300 million[36] equally among his four surviving children (although the will was disputed by heirs of Trump's late brother).[55]
Repairs on The Wollman Rink in Central Park (built in 1955) were started in 1980 with an expected 2½-year construction schedule but were nowhere near completion by 1986. Trump took over the management of the project, at no cost to the city, and completed it in three months for $1.95 million, which was $750,000 less than the initial budget.[51]