Bill Gates pledged on Thursday to give away almost his entire personal wealth in the next two decades and said the world’s poorest would receive some $200 billion via his foundation at a time when governments worldwide are slashing international aid.

Axar.az, citing Al Arabiya, reports that the 69-year-old billionaire Microsoft co-founder and philanthropist said he was speeding up plans to divest his fortune and close the Gates Foundation on Dec. 31, 2045.

“People will say a lot of things about me when I die, but I am determined that ‘he died rich’ will not be one of them,” Gates wrote in a post on his website.