XML 111 R96.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Insurance - Short-duration insurance contracts, claims development (Details) - Property and casualty insurance $ in Millions | Dec. 31, 2018 USD ($) claim | Dec. 31, 2017 USD ($) | Dec. 31, 2016 USD ($) | Dec. 31, 2015 USD ($) | Dec. 31, 2014 USD ($) | Dec. 31, 2013 USD ($) | Dec. 31, 2012 USD ($) | Dec. 31, 2011 USD ($) | Dec. 31, 2010 USD ($) | Dec. 31, 2009 USD ($)
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Claims Development [Line Items] |  |  |  |  |  |  |  |  |  |  |
Incurred Claims and Allocated LAE, Net of Reinsurance |  | $ 19,905 |  |  |  |  |  |  |  |  |
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance |  | 14,960 |  |  |  |  |  |  |  |  |
Unpaid losses and LAE — 11th year and prior (excluding unallocated LAE) |  | 561 |  |  |  |  |  |  |  |  |
Unpaid losses and LAE, net of reinsurance (excluding unallocated LAE) |  | 5,506 |  |  |  |  |  |  |  |  |
Accident Year 2009 |  |  |  |  |  |  |  |  |  |  |
Claims Development [Line Items] |  |  |  |  |  |  |  |  |  |  |
Incurred Claims and Allocated LAE, Net of Reinsurance |  | 1,519 | $ 1,529 | $ 1,539 | $ 1,543 | $ 1,545 | $ 1,552 | $ 1,566 | $ 1,596 | $ 1,607 | $ 1,624
Total IBNR Plus Expected Development on Reported Claims |  | $ 43 |  |  |  |  |  |  |  |  |
Cumulative Number of Reported Claims | claim |  | 222,664 |  |  |  |  |  |  |  |  |
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance |  | $ 1,445 | 1,435 | 1,424 | 1,404 | 1,370 | 1,308 | 1,216 | 1,079 | 871 | 509
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance | [1] | 95.10% |  |  |  |  |  |  |  |  |
Accident Year 2010 |  |  |  |  |  |  |  |  |  |  |
Claims Development [Line Items] |  |  |  |  |  |  |  |  |  |  |
Incurred Claims and Allocated LAE, Net of Reinsurance |  | $ 1,676 | 1,690 | 1,698 | 1,698 | 1,710 | 1,690 | 1,705 | 1,710 | 1,724 |
Total IBNR Plus Expected Development on Reported Claims |  | $ 54 |  |  |  |  |  |  |  |  |
Cumulative Number of Reported Claims | claim |  | 216,568 |  |  |  |  |  |  |  |  |
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance |  | $ 1,595 | 1,580 | 1,562 | 1,536 | 1,485 | 1,387 | 1,220 | 1,005 | 576 |
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance | [1] | 95.20% |  |  |  |  |  |  |  |  |
Accident Year 2011 |  |  |  |  |  |  |  |  |  |  |
Claims Development [Line Items] |  |  |  |  |  |  |  |  |  |  |
Incurred Claims and Allocated LAE, Net of Reinsurance |  | $ 1,843 | 1,859 | 1,866 | 1,861 | 1,871 | 1,849 | 1,848 | 1,840 |  |
Total IBNR Plus Expected Development on Reported Claims |  | $ 67 |  |  |  |  |  |  |  |  |
Cumulative Number of Reported Claims | claim |  | 209,098 |  |  |  |  |  |  |  |  |
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance |  | $ 1,734 | 1,711 | 1,682 | 1,629 | 1,534 | 1,389 | 1,181 | 609 |  |
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance | [1] | 94.10% |  |  |  |  |  |  |  |  |
Accident Year 2012 |  |  |  |  |  |  |  |  |  |  |
Claims Development [Line Items] |  |  |  |  |  |  |  |  |  |  |
Incurred Claims and Allocated LAE, Net of Reinsurance |  | $ 1,906 | 1,941 | 1,955 | 1,947 | 1,946 | 1,952 | 1,970 |  |  |
Total IBNR Plus Expected Development on Reported Claims |  | $ 89 |  |  |  |  |  |  |  |  |
Cumulative Number of Reported Claims | claim |  | 218,585 |  |  |  |  |  |  |  |  |
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance |  | $ 1,785 | 1,735 | 1,675 | 1,579 | 1,418 | 1,214 | 824 |  |  |
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance | [1] | 93.70% |  |  |  |  |  |  |  |  |
Accident Year 2013 |  |  |  |  |  |  |  |  |  |  |
Claims Development [Line Items] |  |  |  |  |  |  |  |  |  |  |
Incurred Claims and Allocated LAE, Net of Reinsurance |  | $ 1,982 | 2,000 | 1,996 | 2,000 | 2,011 | 2,036 |  |  |  |
Total IBNR Plus Expected Development on Reported Claims |  | $ 128 |  |  |  |  |  |  |  |  |
Cumulative Number of Reported Claims | claim |  | 221,362 |  |  |  |  |  |  |  |  |
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance |  | $ 1,774 | 1,714 | 1,617 | 1,443 | 1,214 | 697 |  |  |  |
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance | [1] | 89.50% |  |  |  |  |  |  |  |  |
Accident Year 2014 |  |  |  |  |  |  |  |  |  |  |
Claims Development [Line Items] |  |  |  |  |  |  |  |  |  |  |
Incurred Claims and Allocated LAE, Net of Reinsurance |  | $ 2,004 | 2,038 | 2,040 | 2,050 | 2,083 |  |  |  |  |
Total IBNR Plus Expected Development on Reported Claims |  | $ 186 |  |  |  |  |  |  |  |  |
Cumulative Number of Reported Claims | claim |  | 220,164 |  |  |  |  |  |  |  |  |
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance |  | $ 1,705 | 1,588 | 1,422 | 1,174 | 594 |  |  |  |  |
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance | [1] | 85.10% |  |  |  |  |  |  |  |  |
Accident Year 2015 |  |  |  |  |  |  |  |  |  |  |
Claims Development [Line Items] |  |  |  |  |  |  |  |  |  |  |
Incurred Claims and Allocated LAE, Net of Reinsurance |  | $ 2,038 | 2,041 | 2,047 | 2,114 |  |  |  |  |  |
Total IBNR Plus Expected Development on Reported Claims |  | $ 245 |  |  |  |  |  |  |  |  |
Cumulative Number of Reported Claims | claim |  | 227,435 |  |  |  |  |  |  |  |  |
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance |  | $ 1,592 | 1,404 | 1,129 | 619 |  |  |  |  |  |
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance | [1] | 78.10% |  |  |  |  |  |  |  |  |
Accident Year 2016 |  |  |  |  |  |  |  |  |  |  |
Claims Development [Line Items] |  |  |  |  |  |  |  |  |  |  |
Incurred Claims and Allocated LAE, Net of Reinsurance |  | $ 2,082 | 2,083 | 2,117 |  |  |  |  |  |  |
Total IBNR Plus Expected Development on Reported Claims |  | $ 432 |  |  |  |  |  |  |  |  |
Cumulative Number of Reported Claims | claim |  | 220,481 |  |  |  |  |  |  |  |  |
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance |  | $ 1,350 | 1,099 | 577 |  |  |  |  |  |  |
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance | [1] | 64.80% |  |  |  |  |  |  |  |  |
Accident Year 2017 |  |  |  |  |  |  |  |  |  |  |
Claims Development [Line Items] |  |  |  |  |  |  |  |  |  |  |
Incurred Claims and Allocated LAE, Net of Reinsurance |  | $ 2,348 | 2,375 |  |  |  |  |  |  |  |
Total IBNR Plus Expected Development on Reported Claims |  | $ 737 |  |  |  |  |  |  |  |  |
Cumulative Number of Reported Claims | claim |  | 240,542 |  |  |  |  |  |  |  |  |
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance |  | $ 1,250 | 709 |  |  |  |  |  |  |  |
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance | [1] | 53.20% |  |  |  |  |  |  |  |  |
Accident Year 2018 |  |  |  |  |  |  |  |  |  |  |
Claims Development [Line Items] |  |  |  |  |  |  |  |  |  |  |
Incurred Claims and Allocated LAE, Net of Reinsurance |  | $ 2,507 |  |  |  |  |  |  |  |  |
Total IBNR Plus Expected Development on Reported Claims |  | $ 1,123 |  |  |  |  |  |  |  |  |
Cumulative Number of Reported Claims | claim |  | 205,419 |  |  |  |  |  |  |  |  |
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance |  | $ 730 |  |  |  |  |  |  |  |  |
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance | [1] | 29.10% |  |  |  |  |  |  |  |  |
Excludes short-duration insurance contracts detail for accident years not separately presented |  |  |  |  |  |  |  |  |  |  |
Claims Development [Line Items] |  |  |  |  |  |  |  |  |  |  |
Unpaid losses and LAE, net of reinsurance (excluding unallocated LAE) |  | $ 4,945 |  |  |  |  |  |  |  |  |
Property and transportation |  |  |  |  |  |  |  |  |  |  |
Claims Development [Line Items] |  |  |  |  |  |  |  |  |  |  |
Incurred Claims and Allocated LAE, Net of Reinsurance |  | 7,957 |  |  |  |  |  |  |  |  |
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance |  | 6,863 |  |  |  |  |  |  |  |  |
Unpaid losses and LAE — 11th year and prior (excluding unallocated LAE) |  | 23 |  |  |  |  |  |  |  |  |
Unpaid losses and LAE, net of reinsurance (excluding unallocated LAE) |  | 1,117 |  |  |  |  |  |  |  |  |
Property and transportation | Accident Year 2009 |  |  |  |  |  |  |  |  |  |  |
Claims Development [Line Items] |  |  |  |  |  |  |  |  |  |  |
Incurred Claims and Allocated LAE, Net of Reinsurance |  | 490 | 491 | 491 | 491 | 494 | 494 | 498 | 505 | 487 | 503
Total IBNR Plus Expected Development on Reported Claims |  | $ 2 |  |  |  |  |  |  |  |  |
Cumulative Number of Reported Claims | claim |  | 138,248 |  |  |  |  |  |  |  |  |
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance |  | $ 485 | 484 | 481 | 480 | 476 | 462 | 440 | 397 | 333 | 219
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance | [2] | 99.00% |  |  |  |  |  |  |  |  |
Property and transportation | Accident Year 2010 |  |  |  |  |  |  |  |  |  |  |
Claims Development [Line Items] |  |  |  |  |  |  |  |  |  |  |
Incurred Claims and Allocated LAE, Net of Reinsurance |  | $ 657 | 659 | 661 | 657 | 656 | 654 | 646 | 640 | 680 |
Total IBNR Plus Expected Development on Reported Claims |  | $ 3 |  |  |  |  |  |  |  |  |
Cumulative Number of Reported Claims | claim |  | 138,235 |  |  |  |  |  |  |  |  |
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance |  | $ 650 | 648 | 643 | 638 | 627 | 597 | 536 | 487 | 316 |
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance | [2] | 98.90% |  |  |  |  |  |  |  |  |
Property and transportation | Accident Year 2011 |  |  |  |  |  |  |  |  |  |  |
Claims Development [Line Items] |  |  |  |  |  |  |  |  |  |  |
Incurred Claims and Allocated LAE, Net of Reinsurance |  | $ 850 | 853 | 856 | 844 | 833 | 819 | 803 | 816 |  |
Total IBNR Plus Expected Development on Reported Claims |  | $ 6 |  |  |  |  |  |  |  |  |
Cumulative Number of Reported Claims | claim |  | 139,345 |  |  |  |  |  |  |  |  |
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance |  | $ 839 | 836 | 828 | 810 | 777 | 732 | 670 | 367 |  |
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance | [2] | 98.70% |  |  |  |  |  |  |  |  |
Property and transportation | Accident Year 2012 |  |  |  |  |  |  |  |  |  |  |
Claims Development [Line Items] |  |  |  |  |  |  |  |  |  |  |
Incurred Claims and Allocated LAE, Net of Reinsurance |  | $ 897 | 900 | 905 | 892 | 880 | 866 | 875 |  |  |
Total IBNR Plus Expected Development on Reported Claims |  | $ 13 |  |  |  |  |  |  |  |  |
Cumulative Number of Reported Claims | claim |  | 145,636 |  |  |  |  |  |  |  |  |
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance |  | $ 892 | 866 | 852 | 826 | 780 | 715 | 574 |  |  |
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance | [2] | 99.40% |  |  |  |  |  |  |  |  |
Property and transportation | Accident Year 2013 |  |  |  |  |  |  |  |  |  |  |
Claims Development [Line Items] |  |  |  |  |  |  |  |  |  |  |
Incurred Claims and Allocated LAE, Net of Reinsurance |  | $ 890 | 890 | 890 | 884 | 881 | 894 |  |  |  |
Total IBNR Plus Expected Development on Reported Claims |  | $ 18 |  |  |  |  |  |  |  |  |
Cumulative Number of Reported Claims | claim |  | 141,293 |  |  |  |  |  |  |  |  |
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance |  | $ 859 | 843 | 814 | 769 | 710 | 440 |  |  |  |
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance | [2] | 96.50% |  |  |  |  |  |  |  |  |
Property and transportation | Accident Year 2014 |  |  |  |  |  |  |  |  |  |  |
Claims Development [Line Items] |  |  |  |  |  |  |  |  |  |  |
Incurred Claims and Allocated LAE, Net of Reinsurance |  | $ 831 | 834 | 831 | 842 | 856 |  |  |  |  |
Total IBNR Plus Expected Development on Reported Claims |  | $ 25 |  |  |  |  |  |  |  |  |
Cumulative Number of Reported Claims | claim |  | 136,259 |  |  |  |  |  |  |  |  |
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance |  | $ 784 | 756 | 702 | 638 | 332 |  |  |  |  |
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance | [2] | 94.30% |  |  |  |  |  |  |  |  |
Property and transportation | Accident Year 2015 |  |  |  |  |  |  |  |  |  |  |
Claims Development [Line Items] |  |  |  |  |  |  |  |  |  |  |
Incurred Claims and Allocated LAE, Net of Reinsurance |  | $ 789 | 789 | 794 | 831 |  |  |  |  |  |
Total IBNR Plus Expected Development on Reported Claims |  | $ 36 |  |  |  |  |  |  |  |  |
Cumulative Number of Reported Claims | claim |  | 134,484 |  |  |  |  |  |  |  |  |
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance |  | $ 717 | 675 | 587 | 361 |  |  |  |  |  |
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance | [2] | 90.90% |  |  |  |  |  |  |  |  |
Property and transportation | Accident Year 2016 |  |  |  |  |  |  |  |  |  |  |
Claims Development [Line Items] |  |  |  |  |  |  |  |  |  |  |
Incurred Claims and Allocated LAE, Net of Reinsurance |  | $ 733 | 730 | 762 |  |  |  |  |  |  |
Total IBNR Plus Expected Development on Reported Claims |  | $ 74 |  |  |  |  |  |  |  |  |
Cumulative Number of Reported Claims | claim |  | 122,623 |  |  |  |  |  |  |  |  |
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance |  | $ 590 | 528 | 296 |  |  |  |  |  |  |
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance | [2] | 80.50% |  |  |  |  |  |  |  |  |
Property and transportation | Accident Year 2017 |  |  |  |  |  |  |  |  |  |  |
Claims Development [Line Items] |  |  |  |  |  |  |  |  |  |  |
Incurred Claims and Allocated LAE, Net of Reinsurance |  | $ 868 | 904 |  |  |  |  |  |  |  |
Total IBNR Plus Expected Development on Reported Claims |  | $ 128 |  |  |  |  |  |  |  |  |
Cumulative Number of Reported Claims | claim |  | 140,963 |  |  |  |  |  |  |  |  |
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance |  | $ 648 | 383 |  |  |  |  |  |  |  |
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance | [2] | 74.70% |  |  |  |  |  |  |  |  |
Property and transportation | Accident Year 2018 |  |  |  |  |  |  |  |  |  |  |
Claims Development [Line Items] |  |  |  |  |  |  |  |  |  |  |
Incurred Claims and Allocated LAE, Net of Reinsurance |  | $ 952 |  |  |  |  |  |  |  |  |
Total IBNR Plus Expected Development on Reported Claims |  | $ 277 |  |  |  |  |  |  |  |  |
Cumulative Number of Reported Claims | claim |  | 119,817 |  |  |  |  |  |  |  |  |
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance |  | $ 399 |  |  |  |  |  |  |  |  |
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance | [2] | 41.90% |  |  |  |  |  |  |  |  |
Property and transportation | Excludes short-duration insurance contracts detail for accident years not separately presented |  |  |  |  |  |  |  |  |  |  |
Claims Development [Line Items] |  |  |  |  |  |  |  |  |  |  |
Unpaid losses and LAE, net of reinsurance (excluding unallocated LAE) |  | $ 1,094 |  |  |  |  |  |  |  |  |
Specialty casualty |  |  |  |  |  |  |  |  |  |  |
Claims Development [Line Items] |  |  |  |  |  |  |  |  |  |  |
Incurred Claims and Allocated LAE, Net of Reinsurance |  | 9,776 |  |  |  |  |  |  |  |  |
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance |  | 6,369 |  |  |  |  |  |  |  |  |
Unpaid losses and LAE — 11th year and prior (excluding unallocated LAE) |  | 477 |  |  |  |  |  |  |  |  |
Unpaid losses and LAE, net of reinsurance (excluding unallocated LAE) |  | 3,884 |  |  |  |  |  |  |  |  |
Specialty casualty | Accident Year 2009 |  |  |  |  |  |  |  |  |  |  |
Claims Development [Line Items] |  |  |  |  |  |  |  |  |  |  |
Incurred Claims and Allocated LAE, Net of Reinsurance |  | 811 | 820 | 824 | 829 | 828 | 833 | 844 | 864 | 887 | 888
Total IBNR Plus Expected Development on Reported Claims |  | $ 34 |  |  |  |  |  |  |  |  |
Cumulative Number of Reported Claims | claim |  | 56,985 |  |  |  |  |  |  |  |  |
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance |  | $ 748 | 740 | 731 | 715 | 691 | 653 | 591 | 510 | 381 | 170
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance | [3] | 92.20% |  |  |  |  |  |  |  |  |
Specialty casualty | Accident Year 2010 |  |  |  |  |  |  |  |  |  |  |
Claims Development [Line Items] |  |  |  |  |  |  |  |  |  |  |
Incurred Claims and Allocated LAE, Net of Reinsurance |  | $ 853 | 864 | 867 | 868 | 879 | 865 | 887 | 886 | 870 |
Total IBNR Plus Expected Development on Reported Claims |  | $ 47 |  |  |  |  |  |  |  |  |
Cumulative Number of Reported Claims | claim |  | 56,411 |  |  |  |  |  |  |  |  |
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance |  | $ 782 | 770 | 756 | 735 | 699 | 644 | 559 | 411 | 191 |
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance | [3] | 91.70% |  |  |  |  |  |  |  |  |
Specialty casualty | Accident Year 2011 |  |  |  |  |  |  |  |  |  |  |
Claims Development [Line Items] |  |  |  |  |  |  |  |  |  |  |
Incurred Claims and Allocated LAE, Net of Reinsurance |  | $ 811 | 819 | 822 | 827 | 842 | 833 | 845 | 847 |  |
Total IBNR Plus Expected Development on Reported Claims |  | $ 52 |  |  |  |  |  |  |  |  |
Cumulative Number of Reported Claims | claim |  | 53,385 |  |  |  |  |  |  |  |  |
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance |  | $ 725 | 707 | 687 | 655 | 606 | 517 | 380 | 172 |  |
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance | [3] | 89.40% |  |  |  |  |  |  |  |  |
Specialty casualty | Accident Year 2012 |  |  |  |  |  |  |  |  |  |  |
Claims Development [Line Items] |  |  |  |  |  |  |  |  |  |  |
Incurred Claims and Allocated LAE, Net of Reinsurance |  | $ 838 | 867 | 872 | 876 | 876 | 883 | 890 |  |  |
Total IBNR Plus Expected Development on Reported Claims |  | $ 64 |  |  |  |  |  |  |  |  |
Cumulative Number of Reported Claims | claim |  | 51,885 |  |  |  |  |  |  |  |  |
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance |  | $ 735 | 713 | 674 | 611 | 508 | 378 | 171 |  |  |
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance | [3] | 87.70% |  |  |  |  |  |  |  |  |
Specialty casualty | Accident Year 2013 |  |  |  |  |  |  |  |  |  |  |
Claims Development [Line Items] |  |  |  |  |  |  |  |  |  |  |
Incurred Claims and Allocated LAE, Net of Reinsurance |  | $ 913 | 933 | 928 | 933 | 938 | 956 |  |  |  |
Total IBNR Plus Expected Development on Reported Claims |  | $ 99 |  |  |  |  |  |  |  |  |
Cumulative Number of Reported Claims | claim |  | 51,620 |  |  |  |  |  |  |  |  |
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance |  | $ 754 | 717 | 656 | 545 | 388 | 180 |  |  |  |
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance | [3] | 82.60% |  |  |  |  |  |  |  |  |
Specialty casualty | Accident Year 2014 |  |  |  |  |  |  |  |  |  |  |
Claims Development [Line Items] |  |  |  |  |  |  |  |  |  |  |
Incurred Claims and Allocated LAE, Net of Reinsurance |  | $ 966 | 992 | 994 | 994 | 1,023 |  |  |  |  |
Total IBNR Plus Expected Development on Reported Claims |  | $ 139 |  |  |  |  |  |  |  |  |
Cumulative Number of Reported Claims | claim |  | 54,494 |  |  |  |  |  |  |  |  |
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance |  | $ 741 | 668 | 565 | 406 | 187 |  |  |  |  |
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance | [3] | 76.70% |  |  |  |  |  |  |  |  |
Specialty casualty | Accident Year 2015 |  |  |  |  |  |  |  |  |  |  |
Claims Development [Line Items] |  |  |  |  |  |  |  |  |  |  |
Incurred Claims and Allocated LAE, Net of Reinsurance |  | $ 1,030 | 1,031 | 1,033 | 1,068 |  |  |  |  |  |
Total IBNR Plus Expected Development on Reported Claims |  | $ 185 |  |  |  |  |  |  |  |  |
Cumulative Number of Reported Claims | claim |  | 55,468 |  |  |  |  |  |  |  |  |
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance |  | $ 692 | 569 | 406 | 176 |  |  |  |  |  |
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance | [3] | 67.20% |  |  |  |  |  |  |  |  |
Specialty casualty | Accident Year 2016 |  |  |  |  |  |  |  |  |  |  |
Claims Development [Line Items] |  |  |  |  |  |  |  |  |  |  |
Incurred Claims and Allocated LAE, Net of Reinsurance |  | $ 1,097 | 1,108 | 1,115 |  |  |  |  |  |  |
Total IBNR Plus Expected Development on Reported Claims |  | $ 313 |  |  |  |  |  |  |  |  |
Cumulative Number of Reported Claims | claim |  | 53,038 |  |  |  |  |  |  |  |  |
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance |  | $ 571 | 411 | 184 |  |  |  |  |  |  |
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance | [3] | 52.10% |  |  |  |  |  |  |  |  |
Specialty casualty | Accident Year 2017 |  |  |  |  |  |  |  |  |  |  |
Claims Development [Line Items] |  |  |  |  |  |  |  |  |  |  |
Incurred Claims and Allocated LAE, Net of Reinsurance |  | $ 1,200 | 1,196 |  |  |  |  |  |  |  |
Total IBNR Plus Expected Development on Reported Claims |  | $ 539 |  |  |  |  |  |  |  |  |
Cumulative Number of Reported Claims | claim |  | 52,658 |  |  |  |  |  |  |  |  |
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance |  | $ 414 | 196 |  |  |  |  |  |  |  |
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance | [3] | 34.50% |  |  |  |  |  |  |  |  |
Specialty casualty | Accident Year 2018 |  |  |  |  |  |  |  |  |  |  |
Claims Development [Line Items] |  |  |  |  |  |  |  |  |  |  |
Incurred Claims and Allocated LAE, Net of Reinsurance |  | $ 1,257 |  |  |  |  |  |  |  |  |
Total IBNR Plus Expected Development on Reported Claims |  | $ 705 |  |  |  |  |  |  |  |  |
Cumulative Number of Reported Claims | claim |  | 48,996 |  |  |  |  |  |  |  |  |
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance |  | $ 207 |  |  |  |  |  |  |  |  |
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance | [3] | 16.50% |  |  |  |  |  |  |  |  |
Specialty casualty | Excludes short-duration insurance contracts detail for accident years not separately presented |  |  |  |  |  |  |  |  |  |  |
Claims Development [Line Items] |  |  |  |  |  |  |  |  |  |  |
Unpaid losses and LAE, net of reinsurance (excluding unallocated LAE) |  | $ 3,407 |  |  |  |  |  |  |  |  |
Specialty financial |  |  |  |  |  |  |  |  |  |  |
Claims Development [Line Items] |  |  |  |  |  |  |  |  |  |  |
Incurred Claims and Allocated LAE, Net of Reinsurance |  | 1,623 |  |  |  |  |  |  |  |  |
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance |  | 1,397 |  |  |  |  |  |  |  |  |
Unpaid losses and LAE — 11th year and prior (excluding unallocated LAE) |  | (1) |  |  |  |  |  |  |  |  |
Unpaid losses and LAE, net of reinsurance (excluding unallocated LAE) |  | 225 |  |  |  |  |  |  |  |  |
Specialty financial | Accident Year 2009 |  |  |  |  |  |  |  |  |  |  |
Claims Development [Line Items] |  |  |  |  |  |  |  |  |  |  |
Incurred Claims and Allocated LAE, Net of Reinsurance |  | 186 | 185 | 186 | 187 | 186 | 188 | 184 | 186 | 192 | 192
Total IBNR Plus Expected Development on Reported Claims |  | $ 1 |  |  |  |  |  |  |  |  |
Cumulative Number of Reported Claims | claim |  | 27,431 |  |  |  |  |  |  |  |  |
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance |  | $ 185 | 186 | 186 | 185 | 181 | 171 | 166 | 157 | 145 | 112
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance | [4] | 99.50% |  |  |  |  |  |  |  |  |
Specialty financial | Accident Year 2010 |  |  |  |  |  |  |  |  |  |  |
Claims Development [Line Items] |  |  |  |  |  |  |  |  |  |  |
Incurred Claims and Allocated LAE, Net of Reinsurance |  | $ 126 | 127 | 130 | 133 | 135 | 132 | 132 | 145 | 138 |
Total IBNR Plus Expected Development on Reported Claims |  | $ 1 |  |  |  |  |  |  |  |  |
Cumulative Number of Reported Claims | claim |  | 21,922 |  |  |  |  |  |  |  |  |
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance |  | $ 126 | 126 | 128 | 130 | 132 | 122 | 104 | 93 | 61 |
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance | [4] | 100.00% |  |  |  |  |  |  |  |  |
Specialty financial | Accident Year 2011 |  |  |  |  |  |  |  |  |  |  |
Claims Development [Line Items] |  |  |  |  |  |  |  |  |  |  |
Incurred Claims and Allocated LAE, Net of Reinsurance |  | $ 139 | 143 | 144 | 147 | 153 | 155 | 157 | 138 |  |
Total IBNR Plus Expected Development on Reported Claims |  | $ 6 |  |  |  |  |  |  |  |  |
Cumulative Number of Reported Claims | claim |  | 16,368 |  |  |  |  |  |  |  |  |
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance |  | $ 132 | 131 | 131 | 130 | 123 | 115 | 111 | 58 |  |
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance | [4] | 95.00% |  |  |  |  |  |  |  |  |
Specialty financial | Accident Year 2012 |  |  |  |  |  |  |  |  |  |  |
Claims Development [Line Items] |  |  |  |  |  |  |  |  |  |  |
Incurred Claims and Allocated LAE, Net of Reinsurance |  | $ 132 | 135 | 137 | 139 | 151 | 163 | 163 |  |  |
Total IBNR Plus Expected Development on Reported Claims |  | $ 6 |  |  |  |  |  |  |  |  |
Cumulative Number of Reported Claims | claim |  | 21,064 |  |  |  |  |  |  |  |  |
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance |  | $ 128 | 126 | 121 | 117 | 109 | 104 | 71 |  |  |
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance | [4] | 97.00% |  |  |  |  |  |  |  |  |
Specialty financial | Accident Year 2013 |  |  |  |  |  |  |  |  |  |  |
Claims Development [Line Items] |  |  |  |  |  |  |  |  |  |  |
Incurred Claims and Allocated LAE, Net of Reinsurance |  | $ 126 | 127 | 131 | 137 | 145 | 140 |  |  |  |
Total IBNR Plus Expected Development on Reported Claims |  | $ 9 |  |  |  |  |  |  |  |  |
Cumulative Number of Reported Claims | claim |  | 28,449 |  |  |  |  |  |  |  |  |
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance |  | $ 117 | 117 | 113 | 107 | 100 | 70 |  |  |  |
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance | [4] | 92.90% |  |  |  |  |  |  |  |  |
Specialty financial | Accident Year 2014 |  |  |  |  |  |  |  |  |  |  |
Claims Development [Line Items] |  |  |  |  |  |  |  |  |  |  |
Incurred Claims and Allocated LAE, Net of Reinsurance |  | $ 147 | 153 | 156 | 157 | 146 |  |  |  |  |
Total IBNR Plus Expected Development on Reported Claims |  | $ 9 |  |  |  |  |  |  |  |  |
Cumulative Number of Reported Claims | claim |  | 29,411 |  |  |  |  |  |  |  |  |
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance |  | $ 137 | 128 | 125 | 109 | 62 |  |  |  |  |
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance | [4] | 93.20% |  |  |  |  |  |  |  |  |
Specialty financial | Accident Year 2015 |  |  |  |  |  |  |  |  |  |  |
Claims Development [Line Items] |  |  |  |  |  |  |  |  |  |  |
Incurred Claims and Allocated LAE, Net of Reinsurance |  | $ 153 | 158 | 160 | 156 |  |  |  |  |  |
Total IBNR Plus Expected Development on Reported Claims |  | $ 16 |  |  |  |  |  |  |  |  |
Cumulative Number of Reported Claims | claim |  | 37,483 |  |  |  |  |  |  |  |  |
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance |  | $ 133 | 129 | 110 | 72 |  |  |  |  |  |
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance | [4] | 86.90% |  |  |  |  |  |  |  |  |
Specialty financial | Accident Year 2016 |  |  |  |  |  |  |  |  |  |  |
Claims Development [Line Items] |  |  |  |  |  |  |  |  |  |  |
Incurred Claims and Allocated LAE, Net of Reinsurance |  | $ 187 | 184 | 179 |  |  |  |  |  |  |
Total IBNR Plus Expected Development on Reported Claims |  | $ 24 |  |  |  |  |  |  |  |  |
Cumulative Number of Reported Claims | claim |  | 44,820 |  |  |  |  |  |  |  |  |
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance |  | $ 158 | 141 | 88 |  |  |  |  |  |  |
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance | [4] | 84.50% |  |  |  |  |  |  |  |  |
Specialty financial | Accident Year 2017 |  |  |  |  |  |  |  |  |  |  |
Claims Development [Line Items] |  |  |  |  |  |  |  |  |  |  |
Incurred Claims and Allocated LAE, Net of Reinsurance |  | $ 215 | 212 |  |  |  |  |  |  |  |
Total IBNR Plus Expected Development on Reported Claims |  | $ 34 |  |  |  |  |  |  |  |  |
Cumulative Number of Reported Claims | claim |  | 46,921 |  |  |  |  |  |  |  |  |
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance |  | $ 169 | 120 |  |  |  |  |  |  |  |
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance | [4] | 78.60% |  |  |  |  |  |  |  |  |
Specialty financial | Accident Year 2018 |  |  |  |  |  |  |  |  |  |  |
Claims Development [Line Items] |  |  |  |  |  |  |  |  |  |  |
Incurred Claims and Allocated LAE, Net of Reinsurance |  | $ 212 |  |  |  |  |  |  |  |  |
Total IBNR Plus Expected Development on Reported Claims |  | $ 79 |  |  |  |  |  |  |  |  |
Cumulative Number of Reported Claims | claim |  | 36,606 |  |  |  |  |  |  |  |  |
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance |  | $ 112 |  |  |  |  |  |  |  |  |
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance | [4] | 52.80% |  |  |  |  |  |  |  |  |
Specialty financial | Excludes short-duration insurance contracts detail for accident years not separately presented |  |  |  |  |  |  |  |  |  |  |
Claims Development [Line Items] |  |  |  |  |  |  |  |  |  |  |
Unpaid losses and LAE, net of reinsurance (excluding unallocated LAE) |  | $ 226 |  |  |  |  |  |  |  |  |
Other specialty |  |  |  |  |  |  |  |  |  |  |
Claims Development [Line Items] |  |  |  |  |  |  |  |  |  |  |
Incurred Claims and Allocated LAE, Net of Reinsurance |  | 549 |  |  |  |  |  |  |  |  |
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance |  | 331 |  |  |  |  |  |  |  |  |
Unpaid losses and LAE — 11th year and prior (excluding unallocated LAE) |  | 62 |  |  |  |  |  |  |  |  |
Unpaid losses and LAE, net of reinsurance (excluding unallocated LAE) |  | 280 |  |  |  |  |  |  |  |  |
Other specialty | Accident Year 2009 |  |  |  |  |  |  |  |  |  |  |
Claims Development [Line Items] |  |  |  |  |  |  |  |  |  |  |
Incurred Claims and Allocated LAE, Net of Reinsurance |  | 32 | 33 | 38 | 36 | 37 | 37 | 40 | 41 | 41 | 41
Total IBNR Plus Expected Development on Reported Claims |  | $ 6 |  |  |  |  |  |  |  |  |
Cumulative Number of Reported Claims | claim | [5] | 0 |  |  |  |  |  |  |  |  |
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance |  | $ 27 | 25 | 26 | 24 | 22 | 22 | 19 | 15 | 12 | $ 8
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance | [6] | 84.40% |  |  |  |  |  |  |  |  |
Other specialty | Accident Year 2010 |  |  |  |  |  |  |  |  |  |  |
Claims Development [Line Items] |  |  |  |  |  |  |  |  |  |  |
Incurred Claims and Allocated LAE, Net of Reinsurance |  | $ 40 | 40 | 40 | 40 | 40 | 39 | 40 | 39 | 36 |
Total IBNR Plus Expected Development on Reported Claims |  | $ 3 |  |  |  |  |  |  |  |  |
Cumulative Number of Reported Claims | claim | [5] | 0 |  |  |  |  |  |  |  |  |
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance |  | $ 37 | 36 | 35 | 33 | 27 | 24 | 21 | 14 | $ 8 |
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance | [6] | 92.50% |  |  |  |  |  |  |  |  |
Other specialty | Accident Year 2011 |  |  |  |  |  |  |  |  |  |  |
Claims Development [Line Items] |  |  |  |  |  |  |  |  |  |  |
Incurred Claims and Allocated LAE, Net of Reinsurance |  | $ 43 | 44 | 44 | 43 | 43 | 42 | 43 | 39 |  |
Total IBNR Plus Expected Development on Reported Claims |  | $ 3 |  |  |  |  |  |  |  |  |
Cumulative Number of Reported Claims | claim | [5] | 0 |  |  |  |  |  |  |  |  |
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance |  | $ 38 | 37 | 36 | 34 | 28 | 25 | 20 | $ 12 |  |
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance | [6] | 88.40% |  |  |  |  |  |  |  |  |
Other specialty | Accident Year 2012 |  |  |  |  |  |  |  |  |  |  |
Claims Development [Line Items] |  |  |  |  |  |  |  |  |  |  |
Incurred Claims and Allocated LAE, Net of Reinsurance |  | $ 39 | 39 | 41 | 40 | 39 | 40 | 42 |  |  |
Total IBNR Plus Expected Development on Reported Claims |  | $ 6 |  |  |  |  |  |  |  |  |
Cumulative Number of Reported Claims | claim | [5] | 0 |  |  |  |  |  |  |  |  |
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance |  | $ 30 | 30 | 28 | 25 | 21 | 17 | $ 8 |  |  |
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance | [6] | 76.90% |  |  |  |  |  |  |  |  |
Other specialty | Accident Year 2013 |  |  |  |  |  |  |  |  |  |  |
Claims Development [Line Items] |  |  |  |  |  |  |  |  |  |  |
Incurred Claims and Allocated LAE, Net of Reinsurance |  | $ 53 | 50 | 47 | 46 | 47 | 46 |  |  |  |
Total IBNR Plus Expected Development on Reported Claims |  | $ 2 |  |  |  |  |  |  |  |  |
Cumulative Number of Reported Claims | claim | [5] | 0 |  |  |  |  |  |  |  |  |
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance |  | $ 44 | 37 | 34 | 22 | 16 | $ 7 |  |  |  |
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance | [6] | 83.00% |  |  |  |  |  |  |  |  |
Other specialty | Accident Year 2014 |  |  |  |  |  |  |  |  |  |  |
Claims Development [Line Items] |  |  |  |  |  |  |  |  |  |  |
Incurred Claims and Allocated LAE, Net of Reinsurance |  | $ 60 | 59 | 59 | 57 | 58 |  |  |  |  |
Total IBNR Plus Expected Development on Reported Claims |  | $ 13 |  |  |  |  |  |  |  |  |
Cumulative Number of Reported Claims | claim | [5] | 0 |  |  |  |  |  |  |  |  |
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance |  | $ 43 | 36 | 30 | 21 | $ 13 |  |  |  |  |
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance | [6] | 71.70% |  |  |  |  |  |  |  |  |
Other specialty | Accident Year 2015 |  |  |  |  |  |  |  |  |  |  |
Claims Development [Line Items] |  |  |  |  |  |  |  |  |  |  |
Incurred Claims and Allocated LAE, Net of Reinsurance |  | $ 66 | 63 | 60 | 59 |  |  |  |  |  |
Total IBNR Plus Expected Development on Reported Claims |  | $ 8 |  |  |  |  |  |  |  |  |
Cumulative Number of Reported Claims | claim | [5] | 0 |  |  |  |  |  |  |  |  |
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance |  | $ 50 | 31 | 26 | $ 10 |  |  |  |  |  |
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance | [6] | 75.80% |  |  |  |  |  |  |  |  |
Other specialty | Accident Year 2016 |  |  |  |  |  |  |  |  |  |  |
Claims Development [Line Items] |  |  |  |  |  |  |  |  |  |  |
Incurred Claims and Allocated LAE, Net of Reinsurance |  | $ 65 | 61 | 61 |  |  |  |  |  |  |
Total IBNR Plus Expected Development on Reported Claims |  | $ 21 |  |  |  |  |  |  |  |  |
Cumulative Number of Reported Claims | claim | [5] | 0 |  |  |  |  |  |  |  |  |
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance |  | $ 31 | 19 | $ 9 |  |  |  |  |  |  |
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance | [6] | 47.70% |  |  |  |  |  |  |  |  |
Other specialty | Accident Year 2017 |  |  |  |  |  |  |  |  |  |  |
Claims Development [Line Items] |  |  |  |  |  |  |  |  |  |  |
Incurred Claims and Allocated LAE, Net of Reinsurance |  | $ 65 | 63 |  |  |  |  |  |  |  |
Total IBNR Plus Expected Development on Reported Claims |  | $ 36 |  |  |  |  |  |  |  |  |
Cumulative Number of Reported Claims | claim | [5] | 0 |  |  |  |  |  |  |  |  |
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance |  | $ 19 | $ 10 |  |  |  |  |  |  |  |
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance | [6] | 29.20% |  |  |  |  |  |  |  |  |
Other specialty | Accident Year 2018 |  |  |  |  |  |  |  |  |  |  |
Claims Development [Line Items] |  |  |  |  |  |  |  |  |  |  |
Incurred Claims and Allocated LAE, Net of Reinsurance |  | $ 86 |  |  |  |  |  |  |  |  |
Total IBNR Plus Expected Development on Reported Claims |  | $ 62 |  |  |  |  |  |  |  |  |
Cumulative Number of Reported Claims | claim | [5] | 0 |  |  |  |  |  |  |  |  |
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance |  | $ 12 |  |  |  |  |  |  |  |  |
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance | [6] | 14.00% |  |  |  |  |  |  |  |  |
Other specialty | Excludes short-duration insurance contracts detail for accident years not separately presented |  |  |  |  |  |  |  |  |  |  |
Claims Development [Line Items] |  |  |  |  |  |  |  |  |  |  |
Unpaid losses and LAE, net of reinsurance (excluding unallocated LAE) |  | $ 218 |  |  |  |  |  |  |  |  |
[1] | Represents the cumulative percentage paid of incurred claims and allocated LAE (net of reinsurance, as estimated at December 31, 2018).
[2] | Represents the cumulative percentage paid of incurred claims and allocated LAE (net of reinsurance, as estimated at December 31, 2018).
[3] | Represents the cumulative percentage paid of incurred claims and allocated LAE (net of reinsurance, as estimated at December 31, 2018).
[4] | Represents the cumulative percentage paid of incurred claims and allocated LAE (net of reinsurance, as estimated at December 31, 2018).
[5] | The amounts shown in Other specialty represent business assumed by AFG’s internal reinsurance program from the operations that make up AFG’s other Specialty property and casualty insurance sub-segments. Accordingly, the liability for incurred claims and allocated LAE represents additional reserves held on claims counted in the tables provided for the other sub-segments (above).
[6] | Represents the cumulative percentage paid of incurred claims and allocated LAE (net of reinsurance, as estimated at December 31, 2018).

X
- Definition The cumulative percentage paid of incurred claims and allocated LAE, net of reinsurance. + References No definition available. + Details
Name: | afg_ShortdurationInsuranceContractsCumulativePercentagePaidofIncurredClaimsandAllocatedClaimAdjustmentExpenseNet
Namespace Prefix: | afg_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_ClaimsDevelopmentLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount, after reinsurance, of paid claims and allocated claim adjustment expense used in claims development for short-duration insurance contracts. Excludes unallocated claim adjustment expense. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section 50 -Paragraph 4B -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=99384497&loc=SL65671311-158438 + Details
Name: | us-gaap_ShortdurationInsuranceContractsCumulativePaidClaimsAndAllocatedClaimAdjustmentExpenseNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Undiscounted amount, after reinsurance, of incurred-but-not-reported (IBNR) liabilities plus expected development on reported claims, for claims and allocated claim adjustment expense for short-duration insurance contracts. Excludes unallocated claim adjustment expense. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section 50 -Paragraph 4E -URI http://asc.fasb.org/extlink&oid=99384497&loc=SL65671321-158438 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section 50 -Paragraph 4D -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=99384497&loc=SL65671317-158438 + Details
Name: | us-gaap_ShortdurationInsuranceContractsIncurredButNotReportedIbnrClaimsLiabilityNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Undiscounted amount, after reinsurance, of incurred claims and allocated claim adjustment expense used in claims development for short-duration insurance contracts. Excludes unallocated claim adjustment expense. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section 50 -Paragraph 4B -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=99384497&loc=SL65671311-158438 + Details
Name: | us-gaap_ShortdurationInsuranceContractsIncurredClaimsAndAllocatedClaimAdjustmentExpenseNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Undiscounted amount, after reinsurance, of the liability for unpaid claims and allocated claim adjustment expense for short-duration insurance contracts. Excludes unallocated claim adjustment expense. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section 50 -Paragraph 4C -URI http://asc.fasb.org/extlink&oid=99384497&loc=SL65671315-158438 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section 50 -Paragraph 4B -URI http://asc.fasb.org/extlink&oid=99384497&loc=SL65671311-158438 + Details
Name: | us-gaap_ShortdurationInsuranceContractsLiabilityForUnpaidClaimsAndAllocatedClaimAdjustmentExpenseNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Undiscounted amount, after reinsurance, of the liability for unpaid claims and allocated claim adjustment expense for short-duration insurance contracts for accident years not separately presented in claim development information. Excludes unallocated claim adjustment expense. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section 50 -Paragraph 4B -URI http://asc.fasb.org/extlink&oid=99384497&loc=SL65671311-158438 + Details
Name: | us-gaap_ShortdurationInsuranceContractsLiabilityForUnpaidClaimsAndAllocatedClaimAdjustmentExpenseNetNotSeparatelyPresented
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Cumulative number of reported claims for short-duration insurance contracts. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section 50 -Paragraph 4D -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=99384497&loc=SL65671317-158438 + Details
Name: | us-gaap_ShortdurationInsuranceContractsNumberOfReportedClaims
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=afg_PropertyAndCasualtyInsuranceMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ShortdurationInsuranceContractsAccidentYearAxis=us-gaap_ShortdurationInsuranceContractsAccidentYear2009Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ShortdurationInsuranceContractsAccidentYearAxis=us-gaap_ShortdurationInsuranceContractsAccidentYear2010Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ShortdurationInsuranceContractsAccidentYearAxis=us-gaap_ShortdurationInsuranceContractsAccidentYear2011Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ShortdurationInsuranceContractsAccidentYearAxis=us-gaap_ShortdurationInsuranceContractsAccidentYear2012Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ShortdurationInsuranceContractsAccidentYearAxis=us-gaap_ShortdurationInsuranceContractsAccidentYear2013Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ShortdurationInsuranceContractsAccidentYearAxis=us-gaap_ShortdurationInsuranceContractsAccidentYear2014Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ShortdurationInsuranceContractsAccidentYearAxis=us-gaap_ShortdurationInsuranceContractsAccidentYear2015Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ShortdurationInsuranceContractsAccidentYearAxis=us-gaap_ShortdurationInsuranceContractsAccidentYear2016Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ShortdurationInsuranceContractsAccidentYearAxis=us-gaap_ShortDurationInsuranceContractsAccidentYear2017Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ShortdurationInsuranceContractsAccidentYearAxis=us-gaap_ShortDurationInsuranceContractsAccidentYear2018Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ShortdurationInsuranceContractsClaimDurationAxis=afg_ExcludesShortdurationInsuranceContractsLiabilityforUnpaidClaimsandAllocatedClaimAdjustmentExpenseNotSeparatelyPresentedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_SubsegmentsAxis=afg_SpecialtyPropertyAndTransportationInsuranceMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_SubsegmentsAxis=afg_SpecialtyCasualtyInsuranceMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_SubsegmentsAxis=afg_SpecialtyFinancialInsuranceMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_SubsegmentsAxis=afg_SpecialtyOtherInsuranceMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |