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Supplementary Insurance Information | 12 Months Ended
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Dec. 31, 2018
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information [Abstract] |
Supplementary Insurance Information | AMERICAN FINANCIAL GROUP, INC. AND SUBSIDIARIES SCHEDULE III — SUPPLEMENTARY INSURANCE INFORMATION THREE YEARS ENDED DECEMBER 31, 2018 (IN MILLIONS)
Segment |  | Deferred policy acquisition costs |  | Reserves for future policy benefits, claims and unpaid losses and LAE |  | Unearned premiums |  | Net earned premiums |  | Net investment income |  | Benefits, claims, losses and settlement expenses |  | Amortization of deferred policy acquisition costs |  | Other operating expenses |  | Net written premiums (excluding life)
2018 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Property and casualty insurance |  | $ | 299 |  |  | $ | 9,741 |  |  | $ | 2,595 |  |  | $ | 4,865 |  |  | $ | 438 |  |  | $ | 3,003 |  |  | $ | 644 |  |  | $ | 957 |  |  | $ | 5,023 |
Annuity |  | 1,360 |  |  | 36,616 |  |  | — |  |  | — |  |  | 1,638 |  |  | 998 |  |  | 212 |  |  | 174 |  |  | — |
Other |  | 23 |  |  | 635 |  |  | — |  |  | 24 |  |  | 18 |  |  | 40 |  |  | 4 |  |  | 479 |  |  | 3 |
Total |  | $ | 1,682 |  |  | $ | 46,992 |  |  | $ | 2,595 |  |  | $ | 4,889 |  |  | $ | 2,094 |  |  | $ | 4,041 |  |  | $ | 860 |  |  | $ | 1,610 |  |  | $ | 5,026 |
2017 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Property and casualty insurance |  | $ | 270 |  |  | $ | 9,678 |  |  | $ | 2,410 |  |  | $ | 4,579 |  |  | $ | 362 |  |  | $ | 2,955 |  |  | $ | 556 |  |  | $ | 867 |  |  | $ | 4,751 |
Annuity |  | 920 |  |  | 33,316 |  |  | — |  |  | — |  |  | 1,458 |  |  | 892 |  |  | 130 |  |  | 159 |  |  | — |
Other |  | 26 |  |  | 658 |  |  | — |  |  | 22 |  |  | 11 |  |  | 26 |  |  | 4 |  |  | 552 |  |  | 3 |
Total |  | $ | 1,216 |  |  | $ | 43,652 |  |  | $ | 2,410 |  |  | $ | 4,601 |  |  | $ | 1,831 |  |  | $ | 3,873 |  |  | $ | 690 |  |  | $ | 1,578 |  |  | $ | 4,754 |
2016 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Property and casualty insurance |  | $ | 238 |  |  | $ | 8,563 |  |  | $ | 2,171 |  |  | $ | 4,328 |  |  | $ | 350 |  |  | $ | 2,762 |  |  | $ | 520 |  |  | $ | 870 |  |  | $ | 4,386 |
Annuity |  | 981 |  |  | 29,907 |  |  | — |  |  | — |  |  | 1,356 |  |  | 800 |  |  | 149 |  |  | 142 |  |  | — |
Other |  | 20 |  |  | 691 |  |  | — |  |  | 24 |  |  | (10 | ) |  | 33 |  |  | 4 |  |  | 431 |  |  | 3 |
Total |  | $ | 1,239 |  |  | $ | 39,161 |  |  | $ | 2,171 |  |  | $ | 4,352 |  |  | $ | 1,696 |  |  | $ | 3,595 |  |  | $ | 673 |  |  | $ | 1,443 |  |  | $ | 4,389 |

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- References No definition available. + Details
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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 -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 12 -Subsection 16 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 235 -Section S99 -Paragraph 1 -Subparagraph (SX 210.12-16) -URI http://asc.fasb.org/extlink&oid=34713774&loc=d3e574960-122915 + Details
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