Nature of Operations	3 Months Ended
Mar. 31, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Nature of Operations	NOTE 1 Nature of Operations Brown & Brown, Inc., a Florida corporation, and its subsidiaries (collectively, “Brown & Brown” or the “Company”) is a diversified insurance agency, wholesale brokerage, insurance programs and service organization that markets and sells insurance products and services, primarily in the property, casualty and employee benefits areas. Brown & Brown’s business is divided into four reportable segments. The Retail segment provides a broad range of insurance products and services to commercial, public and quasi-public entities, professional and individual insured customers, and non-insurance risk-mitigating products through our automobile and recreational vehicle dealer services (“F&I”) businesses. The National Programs segment, which acts as a managing general agent (“MGA”), provides professional liability and related package products for certain professionals, a range of insurance products for individuals, flood coverage, and targeted products and services designated for specific industries, trade groups, governmental entities and market niches, all of which are delivered through a nationwide network of independent agents, including Brown & Brown retail agents. The Wholesale Brokerage segment markets and sells excess and surplus commercial and personal lines insurance, primarily through independent agents and brokers, as well as Brown & Brown retail agents. The Services segment provides insurance-related services, including third-party claims administration and comprehensive medical utilization management services in both the workers’ compensation and all-lines liability arenas, as well as Medicare Set-aside services, Social Security disability and Medicare benefits advocacy services and claims adjusting services. The Company primarily operates as an agent or broker not assuming underwriting risks. However, we operate a write-your-own flood insurance carrier, Wright National Flood Insurance Company (“WNFIC”). WNFIC’s underwriting business consists of policies written pursuant to the National Flood Insurance Program (“NFIP”), the program administered by the Federal Emergency Management Agency (“FEMA”) to which premiums and underwriting exposure are ceded and excess flood and private flood policies which are fully reinsured in the private market. The Company also participates in two capitalized captive insurance facilities (the "Captives") for the purpose of facilitating additional underwriting capacity, generating incremental revenues and participating in underwriting results.

Nature of Operations

3 Months Ended

Mar. 31, 2023

Organization, Consolidation and Presentation of Financial Statements [Abstract]

NOTE 1 Nature of Operations

Brown & Brown, Inc., a Florida corporation, and its subsidiaries (collectively, “Brown & Brown” or the “Company”) is a diversified insurance agency, wholesale brokerage, insurance programs and service organization that markets and sells insurance products and services, primarily in the property, casualty and employee benefits areas. Brown & Brown’s business is divided into four reportable segments. The Retail segment provides a broad range of insurance products and services to commercial, public and quasi-public entities, professional and individual insured customers, and non-insurance risk-mitigating products through our automobile and recreational vehicle dealer services (“F&I”) businesses. The National Programs segment, which acts as a managing general agent (“MGA”), provides professional liability and related package products for certain professionals, a range of insurance products for individuals, flood coverage, and targeted products and services designated for specific industries, trade groups, governmental entities and market niches, all of which are delivered through a nationwide network of independent agents, including Brown & Brown retail agents. The Wholesale Brokerage segment markets and sells excess and surplus commercial and personal lines insurance, primarily through independent agents and brokers, as well as Brown & Brown retail agents. The Services segment provides insurance-related services, including third-party claims administration and comprehensive medical utilization management services in both the workers’ compensation and all-lines liability arenas, as well as Medicare Set-aside services, Social Security disability and Medicare benefits advocacy services and claims adjusting services.

The Company primarily operates as an agent or broker not assuming underwriting risks. However, we operate a write-your-own flood insurance carrier, Wright National Flood Insurance Company (“WNFIC”). WNFIC’s underwriting business consists of policies written pursuant to the National Flood Insurance Program (“NFIP”), the program administered by the Federal Emergency Management Agency (“FEMA”) to which premiums and underwriting exposure are ceded and excess flood and private flood policies which are fully reinsured in the private market. The Company also participates in two capitalized captive insurance facilities (the "Captives") for the purpose of facilitating additional underwriting capacity, generating incremental revenues and participating in underwriting results.