Liberty Mutual operates a diversified insurance and capital management business model structured around three interconnected economic engines: US Retail Markets, Global Risk Solutions, and Net Investment Yield. In US Retail Markets (representing 57.2% of consolidated revenue, or $28.72B), the company collects personal automobile, homeowners, and umbrella insurance premiums through a hybrid distribution network combining direct-to-consumer digital channels with Safeco's network of over 10,000 independent insurance agencies. In Global Risk Solutions (representing 34.8% of revenue, or $17.48B), Liberty Mutual underwrites complex commercial multi-peril property, workers' compensation, cyber liability, and global reinsurance across corporate and middle-market clients. The third pillar—Net Investment Yield (accounting for 8.0%, or $4.02B)—manages Liberty Mutual's multi-billion-dollar insurance float across high-grade fixed income securities, corporate debt, commercial mortgages, and strategic alternative private equity investments to generate substantial recurring investment income while ensuring liquidity for catastrophic claim events.