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RESERVE FOR LOSSES AND LAE - Schedule of Ultimate Loss and ALAE and Paid Loss and ALAE, Net of Reinsurance (Details) $ in Millions | Dec. 31, 2023 USD ($) claim | Dec. 31, 2022 USD ($) | Dec. 31, 2021 USD ($) | Dec. 31, 2020 USD ($) | Dec. 31, 2019 USD ($) | Dec. 31, 2018 USD ($) | Dec. 31, 2017 USD ($) | Dec. 31, 2016 USD ($) | Dec. 31, 2015 USD ($) | Dec. 31, 2014 USD ($)
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Claims Development [Line Items] |  |  |  |  |  |  |  |  |  |
Liabilities for unpaid claims and claim adjustment expenses, net of reinsurance | $ 22,192 |  |  |  |  |  |  |  |  |
Reinsurance | Property, Liability and Casualty Insurance Product Line |  |  |  |  |  |  |  |  |  |
Claims Development [Line Items] |  |  |  |  |  |  |  |  |  |
Ultimate incurred loss and allocated loss adjustment expenses, net of reinsurance | 17,185 |  |  |  |  |  |  |  |  |
Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance | 6,687 |  |  |  |  |  |  |  |  |
All outstanding liabilities prior to 2014, net of reinsurance | 995 |  |  |  |  |  |  |  |  |
Liabilities for unpaid claims and claim adjustment expenses, net of reinsurance | 11,493 |  |  |  |  |  |  |  |  |
Reinsurance | Property Insurance |  |  |  |  |  |  |  |  |  |
Claims Development [Line Items] |  |  |  |  |  |  |  |  |  |
Ultimate incurred loss and allocated loss adjustment expenses, net of reinsurance | 22,126 |  |  |  |  |  |  |  |  |
Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance | 16,720 |  |  |  |  |  |  |  |  |
All outstanding liabilities prior to 2014, net of reinsurance | (24) |  |  |  |  |  |  |  |  |
Liabilities for unpaid claims and claim adjustment expenses, net of reinsurance | 5,379 |  |  |  |  |  |  |  |  |
Reinsurance | Accident Year 2014 | Property, Liability and Casualty Insurance Product Line |  |  |  |  |  |  |  |  |  |
Claims Development [Line Items] |  |  |  |  |  |  |  |  |  |
Ultimate incurred loss and allocated loss adjustment expenses, net of reinsurance | 720 | $ 728 | $ 738 | $ 740 | $ 727 | $ 750 | $ 792 | $ 815 | $ 928 | $ 881
Total of IBNR Liabilities Plus Expected Development on Reported Claims | 0 |  |  |  |  |  |  |  |  |
Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance | 635 | 613 | 591 | 550 | 505 | 429 | 304 | 214 | 123 | 58
Reinsurance | Accident Year 2014 | Property Insurance |  |  |  |  |  |  |  |  |  |
Claims Development [Line Items] |  |  |  |  |  |  |  |  |  |
Ultimate incurred loss and allocated loss adjustment expenses, net of reinsurance | 917 | 917 | 919 | 919 | 926 | 925 | 926 | 1,019 | 1,214 | 1,511
Total of IBNR Liabilities Plus Expected Development on Reported Claims | 8 |  |  |  |  |  |  |  |  |
Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance | 882 | 882 | 881 | 879 | 872 | 862 | 830 | 756 | 632 | 361
Reinsurance | Accident Year 2015 | Property, Liability and Casualty Insurance Product Line |  |  |  |  |  |  |  |  |  |
Claims Development [Line Items] |  |  |  |  |  |  |  |  |  |
Ultimate incurred loss and allocated loss adjustment expenses, net of reinsurance | 839 | 840 | 842 | 842 | 805 | 822 | 824 | 828 | 900 |
Total of IBNR Liabilities Plus Expected Development on Reported Claims | 42 |  |  |  |  |  |  |  |  |
Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance | 682 | 654 | 618 | 571 | 502 | 413 | 267 | 160 | 58 |
Reinsurance | Accident Year 2015 | Property Insurance |  |  |  |  |  |  |  |  |  |
Claims Development [Line Items] |  |  |  |  |  |  |  |  |  |
Ultimate incurred loss and allocated loss adjustment expenses, net of reinsurance | 929 | 932 | 935 | 933 | 941 | 938 | 964 | 1,044 | 1,522 |
Total of IBNR Liabilities Plus Expected Development on Reported Claims | 1 |  |  |  |  |  |  |  |  |
Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance | 896 | 893 | 887 | 878 | 857 | 829 | 746 | 596 | 372 |
Reinsurance | Accident Year 2016 | Property, Liability and Casualty Insurance Product Line |  |  |  |  |  |  |  |  |  |
Claims Development [Line Items] |  |  |  |  |  |  |  |  |  |
Ultimate incurred loss and allocated loss adjustment expenses, net of reinsurance | 1,007 | 977 | 946 | 945 | 869 | 874 | 877 | 800 |  |
Total of IBNR Liabilities Plus Expected Development on Reported Claims | 79 |  |  |  |  |  |  |  |  |
Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance | 767 | 699 | 622 | 546 | 432 | 326 | 191 | 90 |  |
Reinsurance | Accident Year 2016 | Property Insurance |  |  |  |  |  |  |  |  |  |
Claims Development [Line Items] |  |  |  |  |  |  |  |  |  |
Ultimate incurred loss and allocated loss adjustment expenses, net of reinsurance | 1,517 | 1,515 | 1,518 | 1,517 | 1,540 | 1,546 | 1,510 | 1,689 |  |
Total of IBNR Liabilities Plus Expected Development on Reported Claims | 16 |  |  |  |  |  |  |  |  |
Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance | 1,453 | 1,442 | 1,429 | 1,410 | 1,357 | 1,239 | 951 | 461 |  |
Reinsurance | Accident Year 2017 | Property, Liability and Casualty Insurance Product Line |  |  |  |  |  |  |  |  |  |
Claims Development [Line Items] |  |  |  |  |  |  |  |  |  |
Ultimate incurred loss and allocated loss adjustment expenses, net of reinsurance | 1,059 | 995 | 939 | 931 | 849 | 843 | 883 |  |  |
Total of IBNR Liabilities Plus Expected Development on Reported Claims | 78 |  |  |  |  |  |  |  |  |
Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance | 796 | 687 | 585 | 462 | 321 | 189 | 81 |  |  |
Reinsurance | Accident Year 2017 | Property Insurance |  |  |  |  |  |  |  |  |  |
Claims Development [Line Items] |  |  |  |  |  |  |  |  |  |
Ultimate incurred loss and allocated loss adjustment expenses, net of reinsurance | 3,713 | 3,699 | 3,689 | 3,643 | 3,515 | 3,404 | 2,781 |  |  |
Total of IBNR Liabilities Plus Expected Development on Reported Claims | 9 |  |  |  |  |  |  |  |  |
Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance | 3,495 | 3,420 | 3,326 | 3,124 | 2,739 | 2,174 | 813 |  |  |
Reinsurance | Accident Year 2018 | Property, Liability and Casualty Insurance Product Line |  |  |  |  |  |  |  |  |  |
Claims Development [Line Items] |  |  |  |  |  |  |  |  |  |
Ultimate incurred loss and allocated loss adjustment expenses, net of reinsurance | 1,658 | 1,561 | 1,493 | 1,462 | 1,385 | 1,388 |  |  |  |
Total of IBNR Liabilities Plus Expected Development on Reported Claims | 320 |  |  |  |  |  |  |  |  |
Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance | 998 | 819 | 636 | 480 | 294 | 170 |  |  |  |
Reinsurance | Accident Year 2018 | Property Insurance |  |  |  |  |  |  |  |  |  |
Claims Development [Line Items] |  |  |  |  |  |  |  |  |  |
Ultimate incurred loss and allocated loss adjustment expenses, net of reinsurance | 2,369 | 2,384 | 2,431 | 2,493 | 2,491 | 2,615 |  |  |  |
Total of IBNR Liabilities Plus Expected Development on Reported Claims | (1) |  |  |  |  |  |  |  |  |
Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance | 2,198 | 2,133 | 2,061 | 1,865 | 1,520 | 541 |  |  |  |
Reinsurance | Accident Year 2019 | Property, Liability and Casualty Insurance Product Line |  |  |  |  |  |  |  |  |  |
Claims Development [Line Items] |  |  |  |  |  |  |  |  |  |
Ultimate incurred loss and allocated loss adjustment expenses, net of reinsurance | 1,867 | 1,826 | 1,801 | 1,799 | 1,734 |  |  |  |  |
Total of IBNR Liabilities Plus Expected Development on Reported Claims | 520 |  |  |  |  |  |  |  |  |
Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance | 957 | 728 | 523 | 354 | 224 |  |  |  |  |
Reinsurance | Accident Year 2019 | Property Insurance |  |  |  |  |  |  |  |  |  |
Claims Development [Line Items] |  |  |  |  |  |  |  |  |  |
Ultimate incurred loss and allocated loss adjustment expenses, net of reinsurance | 1,879 | 1,875 | 1,991 | 2,045 | 2,014 |  |  |  |  |
Total of IBNR Liabilities Plus Expected Development on Reported Claims | (13) |  |  |  |  |  |  |  |  |
Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance | 1,778 | 1,651 | 1,489 | 1,167 | 716 |  |  |  |  |
Reinsurance | Accident Year 2020 | Property, Liability and Casualty Insurance Product Line |  |  |  |  |  |  |  |  |  |
Claims Development [Line Items] |  |  |  |  |  |  |  |  |  |
Ultimate incurred loss and allocated loss adjustment expenses, net of reinsurance | 1,859 | 1,898 | 1,919 | 1,947 |  |  |  |  |  |
Total of IBNR Liabilities Plus Expected Development on Reported Claims | 799 |  |  |  |  |  |  |  |  |
Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance | 729 | 496 | 312 | 199 |  |  |  |  |  |
Reinsurance | Accident Year 2020 | Property Insurance |  |  |  |  |  |  |  |  |  |
Claims Development [Line Items] |  |  |  |  |  |  |  |  |  |
Ultimate incurred loss and allocated loss adjustment expenses, net of reinsurance | 2,386 | 2,414 | 2,470 | 2,397 |  |  |  |  |  |
Total of IBNR Liabilities Plus Expected Development on Reported Claims | 58 |  |  |  |  |  |  |  |  |
Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance | 1,993 | 1,711 | 1,302 | 576 |  |  |  |  |  |
Reinsurance | Accident Year 2021 | Property, Liability and Casualty Insurance Product Line |  |  |  |  |  |  |  |  |  |
Claims Development [Line Items] |  |  |  |  |  |  |  |  |  |
Ultimate incurred loss and allocated loss adjustment expenses, net of reinsurance | 2,433 | 2,492 | 2,497 |  |  |  |  |  |  |
Total of IBNR Liabilities Plus Expected Development on Reported Claims | 1,496 |  |  |  |  |  |  |  |  |
Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance | 547 | 322 | 213 |  |  |  |  |  |  |
Reinsurance | Accident Year 2021 | Property Insurance |  |  |  |  |  |  |  |  |  |
Claims Development [Line Items] |  |  |  |  |  |  |  |  |  |
Ultimate incurred loss and allocated loss adjustment expenses, net of reinsurance | 2,699 | 2,777 | 2,751 |  |  |  |  |  |  |
Total of IBNR Liabilities Plus Expected Development on Reported Claims | 152 |  |  |  |  |  |  |  |  |
Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance | 2,024 | 1,528 | 676 |  |  |  |  |  |  |
Reinsurance | Accident Year 2022 | Property, Liability and Casualty Insurance Product Line |  |  |  |  |  |  |  |  |  |
Claims Development [Line Items] |  |  |  |  |  |  |  |  |  |
Ultimate incurred loss and allocated loss adjustment expenses, net of reinsurance | 2,722 | 2,764 |  |  |  |  |  |  |  |
Total of IBNR Liabilities Plus Expected Development on Reported Claims | 2,049 |  |  |  |  |  |  |  |  |
Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance | 353 | 188 |  |  |  |  |  |  |  |
Reinsurance | Accident Year 2022 | Property Insurance |  |  |  |  |  |  |  |  |  |
Claims Development [Line Items] |  |  |  |  |  |  |  |  |  |
Ultimate incurred loss and allocated loss adjustment expenses, net of reinsurance | 2,926 | 3,247 |  |  |  |  |  |  |  |
Total of IBNR Liabilities Plus Expected Development on Reported Claims | 822 |  |  |  |  |  |  |  |  |
Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance | 1,389 | 638 |  |  |  |  |  |  |  |
Reinsurance | Accident Year 2023 | Property, Liability and Casualty Insurance Product Line |  |  |  |  |  |  |  |  |  |
Claims Development [Line Items] |  |  |  |  |  |  |  |  |  |
Ultimate incurred loss and allocated loss adjustment expenses, net of reinsurance | 3,023 |  |  |  |  |  |  |  |  |
Total of IBNR Liabilities Plus Expected Development on Reported Claims | 2,537 |  |  |  |  |  |  |  |  |
Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance | 223 |  |  |  |  |  |  |  |  |
Reinsurance | Accident Year 2023 | Property Insurance |  |  |  |  |  |  |  |  |  |
Claims Development [Line Items] |  |  |  |  |  |  |  |  |  |
Ultimate incurred loss and allocated loss adjustment expenses, net of reinsurance | 2,791 |  |  |  |  |  |  |  |  |
Total of IBNR Liabilities Plus Expected Development on Reported Claims | 1,537 |  |  |  |  |  |  |  |  |
Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance | 612 |  |  |  |  |  |  |  |  |
Insurance | Property, Liability and Casualty Insurance Product Line |  |  |  |  |  |  |  |  |  |
Claims Development [Line Items] |  |  |  |  |  |  |  |  |  |
Ultimate incurred loss and allocated loss adjustment expenses, net of reinsurance | 9,266 |  |  |  |  |  |  |  |  |
Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance | 4,762 |  |  |  |  |  |  |  |  |
All outstanding liabilities prior to 2014, net of reinsurance | 125 |  |  |  |  |  |  |  |  |
Liabilities for unpaid claims and claim adjustment expenses, net of reinsurance | 4,629 |  |  |  |  |  |  |  |  |
Insurance | Property Insurance |  |  |  |  |  |  |  |  |  |
Claims Development [Line Items] |  |  |  |  |  |  |  |  |  |
Ultimate incurred loss and allocated loss adjustment expenses, net of reinsurance | 4,648 |  |  |  |  |  |  |  |  |
Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance | 3,959 |  |  |  |  |  |  |  |  |
All outstanding liabilities prior to 2014, net of reinsurance | 0 |  |  |  |  |  |  |  |  |
Liabilities for unpaid claims and claim adjustment expenses, net of reinsurance | 690 |  |  |  |  |  |  |  |  |
Insurance | Accident Year 2014 | Property, Liability and Casualty Insurance Product Line |  |  |  |  |  |  |  |  |  |
Claims Development [Line Items] |  |  |  |  |  |  |  |  |  |
Ultimate incurred loss and allocated loss adjustment expenses, net of reinsurance | 399 | 400 | 398 | 399 | 398 | 397 | 460 | 454 | 457 | 431
Total of IBNR Liabilities Plus Expected Development on Reported Claims | $ 21 |  |  |  |  |  |  |  |  |
Cumulative Number of Reported Claims | claim | 26,359 |  |  |  |  |  |  |  |  |
Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance | $ 368 | 360 | 351 | 339 | 326 | 298 | 257 | 202 | 125 | 41
Insurance | Accident Year 2014 | Property Insurance |  |  |  |  |  |  |  |  |  |
Claims Development [Line Items] |  |  |  |  |  |  |  |  |  |
Ultimate incurred loss and allocated loss adjustment expenses, net of reinsurance | 135 | 135 | 135 | 135 | 135 | 135 | 135 | 137 | 143 | 140
Total of IBNR Liabilities Plus Expected Development on Reported Claims | 0 |  |  |  |  |  |  |  |  |
Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance | 134 | 134 | 134 | 134 | 134 | 134 | 134 | 133 | 127 | $ 86
Insurance | Accident Year 2015 | Property, Liability and Casualty Insurance Product Line |  |  |  |  |  |  |  |  |  |
Claims Development [Line Items] |  |  |  |  |  |  |  |  |  |
Ultimate incurred loss and allocated loss adjustment expenses, net of reinsurance | 482 | 479 | 472 | 472 | 468 | 542 | 535 | 528 | 519 |
Total of IBNR Liabilities Plus Expected Development on Reported Claims | $ 25 |  |  |  |  |  |  |  |  |
Cumulative Number of Reported Claims | claim | 28,556 |  |  |  |  |  |  |  |  |
Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance | $ 448 | 435 | 413 | 382 | 353 | 292 | 219 | 135 | 44 |
Insurance | Accident Year 2015 | Property Insurance |  |  |  |  |  |  |  |  |  |
Claims Development [Line Items] |  |  |  |  |  |  |  |  |  |
Ultimate incurred loss and allocated loss adjustment expenses, net of reinsurance | 167 | 168 | 166 | 165 | 164 | 163 | 162 | 171 | 188 |
Total of IBNR Liabilities Plus Expected Development on Reported Claims | 1 |  |  |  |  |  |  |  |  |
Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance | 166 | 166 | 165 | 164 | 163 | 161 | 158 | 153 | $ 108 |
Insurance | Accident Year 2016 | Property, Liability and Casualty Insurance Product Line |  |  |  |  |  |  |  |  |  |
Claims Development [Line Items] |  |  |  |  |  |  |  |  |  |
Ultimate incurred loss and allocated loss adjustment expenses, net of reinsurance | 551 | 542 | 539 | 550 | 613 | 579 | 550 | 552 |  |
Total of IBNR Liabilities Plus Expected Development on Reported Claims | $ 36 |  |  |  |  |  |  |  |  |
Cumulative Number of Reported Claims | claim | 33,104 |  |  |  |  |  |  |  |  |
Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance | $ 504 | 481 | 443 | 401 | 342 | 269 | 164 | 55 |  |
Insurance | Accident Year 2016 | Property Insurance |  |  |  |  |  |  |  |  |  |
Claims Development [Line Items] |  |  |  |  |  |  |  |  |  |
Ultimate incurred loss and allocated loss adjustment expenses, net of reinsurance | 314 | 311 | 311 | 309 | 304 | 295 | 292 | 296 |  |
Total of IBNR Liabilities Plus Expected Development on Reported Claims | 2 |  |  |  |  |  |  |  |  |
Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance | 311 | 310 | 310 | 308 | 302 | 283 | 259 | $ 168 |  |
Insurance | Accident Year 2017 | Property, Liability and Casualty Insurance Product Line |  |  |  |  |  |  |  |  |  |
Claims Development [Line Items] |  |  |  |  |  |  |  |  |  |
Ultimate incurred loss and allocated loss adjustment expenses, net of reinsurance | 668 | 631 | 629 | 653 | 621 | 601 | 610 |  |  |
Total of IBNR Liabilities Plus Expected Development on Reported Claims | $ 74 |  |  |  |  |  |  |  |  |
Cumulative Number of Reported Claims | claim | 37,077 |  |  |  |  |  |  |  |  |
Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance | $ 571 | 529 | 454 | 379 | 280 | 172 | 54 |  |  |
Insurance | Accident Year 2017 | Property Insurance |  |  |  |  |  |  |  |  |  |
Claims Development [Line Items] |  |  |  |  |  |  |  |  |  |
Ultimate incurred loss and allocated loss adjustment expenses, net of reinsurance | 522 | 520 | 508 | 506 | 498 | 507 | 498 |  |  |
Total of IBNR Liabilities Plus Expected Development on Reported Claims | 4 |  |  |  |  |  |  |  |  |
Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance | 517 | 516 | 507 | 489 | 465 | 429 | $ 181 |  |  |
Insurance | Accident Year 2018 | Property, Liability and Casualty Insurance Product Line |  |  |  |  |  |  |  |  |  |
Claims Development [Line Items] |  |  |  |  |  |  |  |  |  |
Ultimate incurred loss and allocated loss adjustment expenses, net of reinsurance | 867 | 771 | 756 | 743 | 706 | 702 |  |  |  |
Total of IBNR Liabilities Plus Expected Development on Reported Claims | $ 139 |  |  |  |  |  |  |  |  |
Cumulative Number of Reported Claims | claim | 37,914 |  |  |  |  |  |  |  |  |
Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance | $ 696 | 594 | 444 | 317 | 208 | 63 |  |  |  |
Insurance | Accident Year 2018 | Property Insurance |  |  |  |  |  |  |  |  |  |
Claims Development [Line Items] |  |  |  |  |  |  |  |  |  |
Ultimate incurred loss and allocated loss adjustment expenses, net of reinsurance | 446 | 438 | 419 | 410 | 408 | 412 |  |  |  |
Total of IBNR Liabilities Plus Expected Development on Reported Claims | 6 |  |  |  |  |  |  |  |  |
Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance | 439 | 433 | 418 | 385 | 364 | $ 246 |  |  |  |
Insurance | Accident Year 2019 | Property, Liability and Casualty Insurance Product Line |  |  |  |  |  |  |  |  |  |
Claims Development [Line Items] |  |  |  |  |  |  |  |  |  |
Ultimate incurred loss and allocated loss adjustment expenses, net of reinsurance | 1,076 | 887 | 877 | 846 | 849 |  |  |  |  |
Total of IBNR Liabilities Plus Expected Development on Reported Claims | $ 211 |  |  |  |  |  |  |  |  |
Cumulative Number of Reported Claims | claim | 41,579 |  |  |  |  |  |  |  |  |
Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance | $ 729 | 551 | 397 | 235 | 72 |  |  |  |  |
Insurance | Accident Year 2019 | Property Insurance |  |  |  |  |  |  |  |  |  |
Claims Development [Line Items] |  |  |  |  |  |  |  |  |  |
Ultimate incurred loss and allocated loss adjustment expenses, net of reinsurance | 395 | 379 | 364 | 367 | 360 |  |  |  |  |
Total of IBNR Liabilities Plus Expected Development on Reported Claims | 9 |  |  |  |  |  |  |  |  |
Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance | 378 | 369 | 350 | 325 | $ 233 |  |  |  |  |
Insurance | Accident Year 2020 | Property, Liability and Casualty Insurance Product Line |  |  |  |  |  |  |  |  |  |
Claims Development [Line Items] |  |  |  |  |  |  |  |  |  |
Ultimate incurred loss and allocated loss adjustment expenses, net of reinsurance | 1,035 | 1,045 | 1,050 | 994 |  |  |  |  |  |
Total of IBNR Liabilities Plus Expected Development on Reported Claims | $ 304 |  |  |  |  |  |  |  |  |
Cumulative Number of Reported Claims | claim | 39,785 |  |  |  |  |  |  |  |  |
Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance | $ 556 | 388 | 236 | 67 |  |  |  |  |  |
Insurance | Accident Year 2020 | Property Insurance |  |  |  |  |  |  |  |  |  |
Claims Development [Line Items] |  |  |  |  |  |  |  |  |  |
Ultimate incurred loss and allocated loss adjustment expenses, net of reinsurance | 521 | 514 | 519 | 614 |  |  |  |  |  |
Total of IBNR Liabilities Plus Expected Development on Reported Claims | 30 |  |  |  |  |  |  |  |  |
Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance | 483 | 467 | 427 | $ 301 |  |  |  |  |  |
Insurance | Accident Year 2021 | Property, Liability and Casualty Insurance Product Line |  |  |  |  |  |  |  |  |  |
Claims Development [Line Items] |  |  |  |  |  |  |  |  |  |
Ultimate incurred loss and allocated loss adjustment expenses, net of reinsurance | 1,258 | 1,248 | 1,190 |  |  |  |  |  |  |
Total of IBNR Liabilities Plus Expected Development on Reported Claims | $ 546 |  |  |  |  |  |  |  |  |
Cumulative Number of Reported Claims | claim | 46,257 |  |  |  |  |  |  |  |  |
Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance | $ 483 | 261 | 110 |  |  |  |  |  |  |
Insurance | Accident Year 2021 | Property Insurance |  |  |  |  |  |  |  |  |  |
Claims Development [Line Items] |  |  |  |  |  |  |  |  |  |
Ultimate incurred loss and allocated loss adjustment expenses, net of reinsurance | 609 | 595 | 660 |  |  |  |  |  |  |
Total of IBNR Liabilities Plus Expected Development on Reported Claims | 41 |  |  |  |  |  |  |  |  |
Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance | 550 | 488 | $ 332 |  |  |  |  |  |  |
Insurance | Accident Year 2022 | Property, Liability and Casualty Insurance Product Line |  |  |  |  |  |  |  |  |  |
Claims Development [Line Items] |  |  |  |  |  |  |  |  |  |
Ultimate incurred loss and allocated loss adjustment expenses, net of reinsurance | 1,364 | 1,369 |  |  |  |  |  |  |  |
Total of IBNR Liabilities Plus Expected Development on Reported Claims | $ 805 |  |  |  |  |  |  |  |  |
Cumulative Number of Reported Claims | claim | 47,484 |  |  |  |  |  |  |  |  |
Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance | $ 309 | 85 |  |  |  |  |  |  |  |
Insurance | Accident Year 2022 | Property Insurance |  |  |  |  |  |  |  |  |  |
Claims Development [Line Items] |  |  |  |  |  |  |  |  |  |
Ultimate incurred loss and allocated loss adjustment expenses, net of reinsurance | 806 | 783 |  |  |  |  |  |  |  |
Total of IBNR Liabilities Plus Expected Development on Reported Claims | 141 |  |  |  |  |  |  |  |  |
Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance | 576 | $ 381 |  |  |  |  |  |  |  |
Insurance | Accident Year 2023 | Property, Liability and Casualty Insurance Product Line |  |  |  |  |  |  |  |  |  |
Claims Development [Line Items] |  |  |  |  |  |  |  |  |  |
Ultimate incurred loss and allocated loss adjustment expenses, net of reinsurance | 1,567 |  |  |  |  |  |  |  |  |
Total of IBNR Liabilities Plus Expected Development on Reported Claims | $ 964 |  |  |  |  |  |  |  |  |
Cumulative Number of Reported Claims | claim | 36,849 |  |  |  |  |  |  |  |  |
Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance | $ 98 |  |  |  |  |  |  |  |  |
Insurance | Accident Year 2023 | Property Insurance |  |  |  |  |  |  |  |  |  |
Claims Development [Line Items] |  |  |  |  |  |  |  |  |  |
Ultimate incurred loss and allocated loss adjustment expenses, net of reinsurance | 734 |  |  |  |  |  |  |  |  |
Total of IBNR Liabilities Plus Expected Development on Reported Claims | 215 |  |  |  |  |  |  |  |  |
Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance | $ 405 |  |  |  |  |  |  |  |  |

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