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Supplementary Insurance Information
 12 Months Ended
Dec. 31, 2023
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information [Abstract]  
Supplementary Insurance Information
Schedule III
Cincinnati Financial Corporation and Subsidiaries
Supplementary Insurance Information
(Dollars in millions)Years ended December 31,
 202320222021
Deferred policy acquisition costs:   
Commercial lines insurance$387 $372 $345 
Personal lines insurance210 168 145 
Excess and surplus lines insurance43 37 33 
Other109 105 79 
Total property casualty insurance749 682 602 
Life insurance344 331 314 
Total$1,093 $1,013 $916 
Gross future policy benefits, losses, claims and expense losses:   
Commercial lines insurance$5,887 $5,568 $5,007 
Personal lines insurance990 916 814 
Excess and surplus lines insurance932 753 577 
Other1,166 1,099 831 
Total property casualty insurance8,975 8,336 7,229 
Life insurance3,094 3,038 3,498 
Total (1)$12,069 $11,374 $10,727 
Gross unearned premiums:   
Commercial lines insurance$2,111 $2,021 $1,857 
Personal lines insurance1,253 994 850 
Excess and surplus lines insurance273 236 207 
Other481 437 356 
Total property casualty insurance4,118 3,688 3,270 
Life insurance1 1 1 
Total (1)$4,119 $3,689 $3,271 
Other policy claims and benefits payable:   
Commercial lines insurance$— $— $— 
Personal lines insurance— — — 
Excess and surplus lines insurance— — — 
Other— — — 
Total property casualty insurance— — — 
Life insurance49 41 53 
Total (1)$49 $41 $53 
Earned premiums:   
Commercial lines insurance$4,264 $4,024 $3,674 
Personal lines insurance2,044 1,689 1,542 
Excess and surplus lines insurance542 485 398 
Other795 726 570 
Total property casualty insurance7,645 6,924 6,184 
Life insurance313 301 294 
Total$7,958 $7,225 $6,478 
 Schedule III (continued)
Cincinnati Financial Corporation and Subsidiaries
Supplementary Insurance Information
(Dollars in millions)Years ended December 31,
 202320222021
Investment income, net of expenses:   
Commercial lines insurance$— $— $— 
Personal lines insurance— — — 
Excess and surplus lines insurance— — — 
Other— — — 
Total property casualty insurance (2)602 509 457 
Life insurance184 171 166 
Total$786 $680 $623 
Benefits, claims losses and settlement expenses:   
Commercial lines insurance$2,787 $2,761 $1,940 
Personal lines insurance1,442 1,166 992 
Excess and surplus lines insurance350 315 250 
Other379 474 414 
Total property casualty insurance4,958 4,716 3,596 
Life insurance316 303 313 
Total$5,274 $5,019 $3,909 
Amortization of deferred policy acquisition costs:   
Commercial lines insurance$808 $769 $703 
Personal lines insurance367 311 276 
Excess and surplus lines insurance89 79 63 
Other157 144 109 
Total property casualty insurance1,421 1,303 1,151 
Life insurance29 27 25 
Total (3)$1,450 $1,330 $1,176 
Underwriting, acquisition and insurance expenses:   
Commercial lines insurance$505 $460 $437 
Personal lines insurance243 198 181 
Excess and surplus lines insurance52 45 43 
Other76 72 55 
Total property casualty insurance876 775 716 
Life insurance58 57 54 
Total (3)$934 $832 $770 
Net written premiums:   
Commercial lines insurance$4,336 $4,159 $3,811 
Personal lines insurance2,302 1,831 1,594 
Excess and surplus lines insurance570 502 426 
Other838 815 648 
Total property casualty insurance8,046 7,307 6,479 
Accident and health insurance2 2 2 
Total$8,048 $7,309 $6,481 
Notes to Schedule III:
(1) The sum of gross future policy benefits, losses, claims and expense losses, gross unearned premiums and other policy claims and benefits payable is equal to the sum of Loss and loss expense reserves, Life policy reserves and investment contract reserves and Unearned premiums reported in the company’s consolidated balance sheets.
(2) This segment information is not regularly allocated to segments and reviewed by company management in making decisions about resources to be allocated to the segments or to assess their performance.
(3) The sum of amortization of deferred policy acquisition costs and other underwriting and insurance expenses is equal to Underwriting, acquisition and insurance expenses in the consolidated statements of income.