Chubb Limited is a premier global insurance and reinsurance organization, operating across 54 countries and territories. The company's business model is centered on underwriting risk and managing a massive investment portfolio exceeding $120 billion. Chubb operates through six primary segments: North America Commercial P&C Insurance, North America Personal P&C Insurance, North America Agricultural Insurance, Overseas General Insurance, Global Reinsurance, and Life Insurance. Property and casualty (P&C) insurance is the core driver of the business, accounting for the vast majority of its premiums and underwriting income. The company caters to a diverse client base, offering specialized commercial lines for multinational corporations and mid-sized businesses, as well as tailored personal lines for high-net-worth individuals. Chubb's competitive position is bolstered by its disciplined underwriting approach, extensive global footprint, and robust financial standing. The current entity is the result of the 2016 merger where ACE Limited acquired The Chubb Corporation for $28.3 billion, creating an industry powerhouse that combines ACE's international and specialty strengths with Chubb's U.S. commercial and affluent personal lines franchise.