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Supplementary Insurance Information | 12 Months Ended
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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,
|  | 2023 |  | 2022 |  | 2021
Deferred policy acquisition costs: |  |  |  |  |  |
Commercial lines insurance |  | $ | 387 |  |  | $ | 372 |  |  | $ | 345 |
Personal lines insurance |  | 210 |  |  | 168 |  |  | 145 |
Excess and surplus lines insurance |  | 43 |  |  | 37 |  |  | 33 |
Other |  | 109 |  |  | 105 |  |  | 79 |
Total property casualty insurance |  | 749 |  |  | 682 |  |  | 602 |
Life insurance |  | 344 |  |  | 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 insurance |  | 990 |  |  | 916 |  |  | 814 |
Excess and surplus lines insurance |  | 932 |  |  | 753 |  |  | 577 |
Other |  | 1,166 |  |  | 1,099 |  |  | 831 |
Total property casualty insurance |  | 8,975 |  |  | 8,336 |  |  | 7,229 |
Life insurance |  | 3,094 |  |  | 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 insurance |  | 1,253 |  |  | 994 |  |  | 850 |
Excess and surplus lines insurance |  | 273 |  |  | 236 |  |  | 207 |
Other |  | 481 |  |  | 437 |  |  | 356 |
Total property casualty insurance |  | 4,118 |  |  | 3,688 |  |  | 3,270 |
Life insurance |  | 1 |  |  | 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 insurance |  | 49 |  |  | 41 |  |  | 53 |
Total (1) |  | $ | 49 |  |  | $ | 41 |  |  | $ | 53 |
Earned premiums: |  |  |  |  |  |
Commercial lines insurance |  | $ | 4,264 |  |  | $ | 4,024 |  |  | $ | 3,674 |
Personal lines insurance |  | 2,044 |  |  | 1,689 |  |  | 1,542 |
Excess and surplus lines insurance |  | 542 |  |  | 485 |  |  | 398 |
Other |  | 795 |  |  | 726 |  |  | 570 |
Total property casualty insurance |  | 7,645 |  |  | 6,924 |  |  | 6,184 |
Life insurance |  | 313 |  |  | 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,
|  | 2023 |  | 2022 |  | 2021
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 insurance |  | 184 |  |  | 171 |  |  | 166 |
Total |  | $ | 786 |  |  | $ | 680 |  |  | $ | 623 |
Benefits, claims losses and settlement expenses: |  |  |  |  |  |
Commercial lines insurance |  | $ | 2,787 |  |  | $ | 2,761 |  |  | $ | 1,940 |
Personal lines insurance |  | 1,442 |  |  | 1,166 |  |  | 992 |
Excess and surplus lines insurance |  | 350 |  |  | 315 |  |  | 250 |
Other |  | 379 |  |  | 474 |  |  | 414 |
Total property casualty insurance |  | 4,958 |  |  | 4,716 |  |  | 3,596 |
Life insurance |  | 316 |  |  | 303 |  |  | 313 |
Total |  | $ | 5,274 |  |  | $ | 5,019 |  |  | $ | 3,909 |
Amortization of deferred policy acquisition costs: |  |  |  |  |  |
Commercial lines insurance |  | $ | 808 |  |  | $ | 769 |  |  | $ | 703 |
Personal lines insurance |  | 367 |  |  | 311 |  |  | 276 |
Excess and surplus lines insurance |  | 89 |  |  | 79 |  |  | 63 |
Other |  | 157 |  |  | 144 |  |  | 109 |
Total property casualty insurance |  | 1,421 |  |  | 1,303 |  |  | 1,151 |
Life insurance |  | 29 |  |  | 27 |  |  | 25 |
Total (3) |  | $ | 1,450 |  |  | $ | 1,330 |  |  | $ | 1,176 |
Underwriting, acquisition and insurance expenses: |  |  |  |  |  |
Commercial lines insurance |  | $ | 505 |  |  | $ | 460 |  |  | $ | 437 |
Personal lines insurance |  | 243 |  |  | 198 |  |  | 181 |
Excess and surplus lines insurance |  | 52 |  |  | 45 |  |  | 43 |
Other |  | 76 |  |  | 72 |  |  | 55 |
Total property casualty insurance |  | 876 |  |  | 775 |  |  | 716 |
Life insurance |  | 58 |  |  | 57 |  |  | 54 |
Total (3) |  | $ | 934 |  |  | $ | 832 |  |  | $ | 770 |
Net written premiums: |  |  |  |  |  |
Commercial lines insurance |  | $ | 4,336 |  |  | $ | 4,159 |  |  | $ | 3,811 |
Personal lines insurance |  | 2,302 |  |  | 1,831 |  |  | 1,594 |
Excess and surplus lines insurance |  | 570 |  |  | 502 |  |  | 426 |
Other |  | 838 |  |  | 815 |  |  | 648 |
Total property casualty insurance |  | 8,046 |  |  | 7,307 |  |  | 6,479 |
Accident and health insurance |  | 2 |  |  | 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.

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- Definition The entire disclosure for supplementary insurance information by segment. Includes, but is not limited to, deferred policy acquisition cost; future policy benefit, loss, claim and loss expenses; unearned premium; other policy claim and benefit payable; premium revenue; net investment income; benefit, claim, loss and settlement expenses; amortization of deferred policy acquisition cost; other operating expense; and premium written. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name Regulation S-X (SX) -Number 210 -Section 12 -Subsection 16 -Publisher SEC Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.12-16(Column G)(Footnote 3)) -SubTopic 235 -Topic 944 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480149/944-235-S99-1 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.12-16(Column J)(Footnote 3)) -SubTopic 235 -Topic 944 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480149/944-235-S99-1 + Details
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