Chubb Limited is a global property and casualty insurance and reinsurance holding company that provides commercial, personal, agricultural, and specialty insurance coverages through operations across multiple continents, supplemented by accident and health insurance and life insurance operations primarily in Asia. The company generates revenue from underwriting insurance policies, investment income from its substantial asset base, and reinsurance underwriting, distributing products through brokers, agents, and direct channels while maintaining disciplined underwriting standards and risk selection to sustain profitability across market cycles. Chubb competes on the strength of its diversified product portfolio, geographic reach, substantial capital base, claims service capabilities, and decentralized management structure that balances local autonomy with global underwriting consistency.