Denny Sanford, a billionaire philanthropist and former credit-card executive, dies after reportedly giving away about $4 billion, according to multiple reports. He is described as a mega-donor who used his wealth to fund large-scale charitable efforts, with particular emphasis on health care. Sanford is credited with helping build one of the country’s largest rural health systems, significantly expanding access to medical services in underserved areas. The coverage characterizes him as a philanthropist who viewed his giving as a long-term project and who sought to leave much of his fortune supporting public causes. While the reports focus on his fundraising and the scale of his donations, they also depict him as a longtime figure in both business and philanthropy, linking his earlier career success to later charitable work. Details about the cause and timing of his death are reported in the articles, along with quotes attributed to him about his desire to have less personal wealth later in life. The overall accounts emphasize his philanthropic legacy and the institutions he helped create.