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Short Duration Contracts - Claims development - Insurance (Details) $ in Millions | Dec. 31, 2023 USD ($) claims | Dec. 31, 2022 USD ($) | 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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Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items] |  |  |  |  |  |  |  |  |  |
Liabilities for losses and loss adjustment expenses, net of reinsurance | $ 15,700 |  |  |  |  |  |  |  |  |
Insurance | Property, energy, marine and aviation |  |  |  |  |  |  |  |  |  |
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items] |  |  |  |  |  |  |  |  |  |
Incurred losses and allocated loss adjustment expenses, net of reinsurance | 2,688 |  |  |  |  |  |  |  |  |
Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance | 1,878 |  |  |  |  |  |  |  |  |
All outstanding liabilities before 2014, net of reinsurance | 14 |  |  |  |  |  |  |  |  |
Liabilities for losses and loss adjustment expenses, net of reinsurance | 824 |  |  |  |  |  |  |  |  |
Insurance | Property, energy, marine and aviation | 2014 |  |  |  |  |  |  |  |  |  |
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items] |  |  |  |  |  |  |  |  |  |
Incurred losses and allocated loss adjustment expenses, net of reinsurance | 133 | $ 134 | $ 135 | $ 135 | $ 134 | $ 132 | $ 136 | $ 147 | $ 146 | $ 148
Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance | 125 | 123 | 122 | 115 | 98 | 88 | 84 | 78 | 54 | 26
Total of IBNR liabilities plus expected development on reported claims | $ 2 |  |  |  |  |  |  |  |  |
Cumulative number of reported claims | claims | 3,871 |  |  |  |  |  |  |  |  |
Insurance | Property, energy, marine and aviation | 2015 |  |  |  |  |  |  |  |  |  |
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items] |  |  |  |  |  |  |  |  |  |
Incurred losses and allocated loss adjustment expenses, net of reinsurance | $ 89 | 91 | 92 | 92 | 98 | 102 | 104 | 110 | 112 |
Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance | 86 | 88 | 87 | 86 | 88 | 86 | 76 | 65 | 24 |
Total of IBNR liabilities plus expected development on reported claims | $ 2 |  |  |  |  |  |  |  |  |
Cumulative number of reported claims | claims | 4,530 |  |  |  |  |  |  |  |  |
Insurance | Property, energy, marine and aviation | 2016 |  |  |  |  |  |  |  |  |  |
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items] |  |  |  |  |  |  |  |  |  |
Incurred losses and allocated loss adjustment expenses, net of reinsurance | $ 88 | 88 | 92 | 96 | 100 | 105 | 101 | 104 |  |
Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance | 87 | 87 | 91 | 95 | 97 | 98 | 83 | 25 |  |
Total of IBNR liabilities plus expected development on reported claims | $ 0 |  |  |  |  |  |  |  |  |
Cumulative number of reported claims | claims | 6,171 |  |  |  |  |  |  |  |  |
Insurance | Property, energy, marine and aviation | 2017 |  |  |  |  |  |  |  |  |  |
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items] |  |  |  |  |  |  |  |  |  |
Incurred losses and allocated loss adjustment expenses, net of reinsurance | $ 225 | 225 | 231 | 230 | 236 | 246 | 281 |  |  |
Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance | 220 | 218 | 216 | 212 | 196 | 140 | 30 |  |  |
Total of IBNR liabilities plus expected development on reported claims | $ 1 |  |  |  |  |  |  |  |  |
Cumulative number of reported claims | claims | 6,475 |  |  |  |  |  |  |  |  |
Insurance | Property, energy, marine and aviation | 2018 |  |  |  |  |  |  |  |  |  |
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items] |  |  |  |  |  |  |  |  |  |
Incurred losses and allocated loss adjustment expenses, net of reinsurance | $ 172 | 170 | 170 | 174 | 186 | 181 |  |  |  |
Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance | 154 | 150 | 143 | 135 | 102 | 30 |  |  |  |
Total of IBNR liabilities plus expected development on reported claims | $ 5 |  |  |  |  |  |  |  |  |
Cumulative number of reported claims | claims | 5,077 |  |  |  |  |  |  |  |  |
Insurance | Property, energy, marine and aviation | 2019 |  |  |  |  |  |  |  |  |  |
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items] |  |  |  |  |  |  |  |  |  |
Incurred losses and allocated loss adjustment expenses, net of reinsurance | $ 159 | 161 | 165 | 179 | 179 |  |  |  |  |
Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance | 148 | 139 | 134 | 105 | 26 |  |  |  |  |
Total of IBNR liabilities plus expected development on reported claims | $ (1) |  |  |  |  |  |  |  |  |
Cumulative number of reported claims | claims | 7,018 |  |  |  |  |  |  |  |  |
Insurance | Property, energy, marine and aviation | 2020 |  |  |  |  |  |  |  |  |  |
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items] |  |  |  |  |  |  |  |  |  |
Incurred losses and allocated loss adjustment expenses, net of reinsurance | $ 333 | 336 | 329 | 359 |  |  |  |  |  |
Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance | 293 | 251 | 194 | 56 |  |  |  |  |  |
Total of IBNR liabilities plus expected development on reported claims | $ 9 |  |  |  |  |  |  |  |  |
Cumulative number of reported claims | claims | 8,212 |  |  |  |  |  |  |  |  |
Insurance | Property, energy, marine and aviation | 2021 |  |  |  |  |  |  |  |  |  |
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items] |  |  |  |  |  |  |  |  |  |
Incurred losses and allocated loss adjustment expenses, net of reinsurance | $ 423 | 429 | 427 |  |  |  |  |  |  |
Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance | 343 | 268 | 90 |  |  |  |  |  |  |
Total of IBNR liabilities plus expected development on reported claims | $ 41 |  |  |  |  |  |  |  |  |
Cumulative number of reported claims | claims | 8,807 |  |  |  |  |  |  |  |  |
Insurance | Property, energy, marine and aviation | 2022 |  |  |  |  |  |  |  |  |  |
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items] |  |  |  |  |  |  |  |  |  |
Incurred losses and allocated loss adjustment expenses, net of reinsurance | $ 495 | 522 |  |  |  |  |  |  |  |
Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance | 276 | 100 |  |  |  |  |  |  |  |
Total of IBNR liabilities plus expected development on reported claims | $ 74 |  |  |  |  |  |  |  |  |
Cumulative number of reported claims | claims | 13,274 |  |  |  |  |  |  |  |  |
Insurance | Property, energy, marine and aviation | 2023 |  |  |  |  |  |  |  |  |  |
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items] |  |  |  |  |  |  |  |  |  |
Incurred losses and allocated loss adjustment expenses, net of reinsurance | $ 571 |  |  |  |  |  |  |  |  |
Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance | 146 |  |  |  |  |  |  |  |  |
Total of IBNR liabilities plus expected development on reported claims | $ 275 |  |  |  |  |  |  |  |  |
Cumulative number of reported claims | claims | 13,682 |  |  |  |  |  |  |  |  |
Insurance | Third party occurrence business |  |  |  |  |  |  |  |  |  |
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items] |  |  |  |  |  |  |  |  |  |
Incurred losses and allocated loss adjustment expenses, net of reinsurance | $ 5,304 |  |  |  |  |  |  |  |  |
Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance | 1,990 |  |  |  |  |  |  |  |  |
All outstanding liabilities before 2014, net of reinsurance | 287 |  |  |  |  |  |  |  |  |
Liabilities for losses and loss adjustment expenses, net of reinsurance | 3,601 |  |  |  |  |  |  |  |  |
Insurance | Third party occurrence business | 2014 |  |  |  |  |  |  |  |  |  |
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items] |  |  |  |  |  |  |  |  |  |
Incurred losses and allocated loss adjustment expenses, net of reinsurance | 344 | 345 | 343 | 343 | 344 | 339 | 343 | 339 | 336 | 330
Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance | 257 | 237 | 224 | 211 | 191 | 162 | 113 | 71 | 40 | 9
Total of IBNR liabilities plus expected development on reported claims | $ 49 |  |  |  |  |  |  |  |  |
Cumulative number of reported claims | claims | 75,679 |  |  |  |  |  |  |  |  |
Insurance | Third party occurrence business | 2015 |  |  |  |  |  |  |  |  |  |
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items] |  |  |  |  |  |  |  |  |  |
Incurred losses and allocated loss adjustment expenses, net of reinsurance | $ 377 | 379 | 386 | 382 | 391 | 392 | 399 | 392 | 359 |
Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance | 268 | 249 | 227 | 212 | 182 | 139 | 88 | 45 | 11 |
Total of IBNR liabilities plus expected development on reported claims | $ 66 |  |  |  |  |  |  |  |  |
Cumulative number of reported claims | claims | 78,689 |  |  |  |  |  |  |  |  |
Insurance | Third party occurrence business | 2016 |  |  |  |  |  |  |  |  |  |
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items] |  |  |  |  |  |  |  |  |  |
Incurred losses and allocated loss adjustment expenses, net of reinsurance | $ 352 | 363 | 368 | 375 | 399 | 406 | 394 | 390 |  |
Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance | 231 | 215 | 195 | 165 | 137 | 88 | 42 | 12 |  |
Total of IBNR liabilities plus expected development on reported claims | $ 77 |  |  |  |  |  |  |  |  |
Cumulative number of reported claims | claims | 78,883 |  |  |  |  |  |  |  |  |
Insurance | Third party occurrence business | 2017 |  |  |  |  |  |  |  |  |  |
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items] |  |  |  |  |  |  |  |  |  |
Incurred losses and allocated loss adjustment expenses, net of reinsurance | $ 405 | 406 | 407 | 412 | 422 | 418 | 417 |  |  |
Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance | 247 | 221 | 165 | 135 | 100 | 52 | 13 |  |  |
Total of IBNR liabilities plus expected development on reported claims | $ 100 |  |  |  |  |  |  |  |  |
Cumulative number of reported claims | claims | 84,687 |  |  |  |  |  |  |  |  |
Insurance | Third party occurrence business | 2018 |  |  |  |  |  |  |  |  |  |
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items] |  |  |  |  |  |  |  |  |  |
Incurred losses and allocated loss adjustment expenses, net of reinsurance | $ 462 | 459 | 451 | 451 | 453 | 430 |  |  |  |
Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance | 247 | 200 | 154 | 115 | 64 | 17 |  |  |  |
Total of IBNR liabilities plus expected development on reported claims | $ 127 |  |  |  |  |  |  |  |  |
Cumulative number of reported claims | claims | 78,320 |  |  |  |  |  |  |  |  |
Insurance | Third party occurrence business | 2019 |  |  |  |  |  |  |  |  |  |
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items] |  |  |  |  |  |  |  |  |  |
Incurred losses and allocated loss adjustment expenses, net of reinsurance | $ 470 | 471 | 481 | 487 | 456 |  |  |  |  |
Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance | 214 | 173 | 122 | 73 | 18 |  |  |  |  |
Total of IBNR liabilities plus expected development on reported claims | $ 154 |  |  |  |  |  |  |  |  |
Cumulative number of reported claims | claims | 86,139 |  |  |  |  |  |  |  |  |
Insurance | Third party occurrence business | 2020 |  |  |  |  |  |  |  |  |  |
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items] |  |  |  |  |  |  |  |  |  |
Incurred losses and allocated loss adjustment expenses, net of reinsurance | $ 632 | 640 | 616 | 607 |  |  |  |  |  |
Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance | 235 | 155 | 77 | 24 |  |  |  |  |  |
Total of IBNR liabilities plus expected development on reported claims | $ 226 |  |  |  |  |  |  |  |  |
Cumulative number of reported claims | claims | 92,279 |  |  |  |  |  |  |  |  |
Insurance | Third party occurrence business | 2021 |  |  |  |  |  |  |  |  |  |
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items] |  |  |  |  |  |  |  |  |  |
Incurred losses and allocated loss adjustment expenses, net of reinsurance | $ 659 | 663 | 622 |  |  |  |  |  |  |
Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance | 174 | 91 | 26 |  |  |  |  |  |  |
Total of IBNR liabilities plus expected development on reported claims | $ 290 |  |  |  |  |  |  |  |  |
Cumulative number of reported claims | claims | 92,672 |  |  |  |  |  |  |  |  |
Insurance | Third party occurrence business | 2022 |  |  |  |  |  |  |  |  |  |
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items] |  |  |  |  |  |  |  |  |  |
Incurred losses and allocated loss adjustment expenses, net of reinsurance | $ 726 | 688 |  |  |  |  |  |  |  |
Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance | 85 | 24 |  |  |  |  |  |  |  |
Total of IBNR liabilities plus expected development on reported claims | $ 513 |  |  |  |  |  |  |  |  |
Cumulative number of reported claims | claims | 92,564 |  |  |  |  |  |  |  |  |
Insurance | Third party occurrence business | 2023 |  |  |  |  |  |  |  |  |  |
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items] |  |  |  |  |  |  |  |  |  |
Incurred losses and allocated loss adjustment expenses, net of reinsurance | $ 877 |  |  |  |  |  |  |  |  |
Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance | 32 |  |  |  |  |  |  |  |  |
Total of IBNR liabilities plus expected development on reported claims | $ 750 |  |  |  |  |  |  |  |  |
Cumulative number of reported claims | claims | 72,833 |  |  |  |  |  |  |  |  |
Insurance | Third party claims-made business |  |  |  |  |  |  |  |  |  |
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items] |  |  |  |  |  |  |  |  |  |
Incurred losses and allocated loss adjustment expenses, net of reinsurance | $ 4,334 |  |  |  |  |  |  |  |  |
Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance | 2,059 |  |  |  |  |  |  |  |  |
All outstanding liabilities before 2014, net of reinsurance | 77 |  |  |  |  |  |  |  |  |
Liabilities for losses and loss adjustment expenses, net of reinsurance | 2,352 |  |  |  |  |  |  |  |  |
Insurance | Third party claims-made business | 2014 |  |  |  |  |  |  |  |  |  |
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items] |  |  |  |  |  |  |  |  |  |
Incurred losses and allocated loss adjustment expenses, net of reinsurance | 287 | 296 | 288 | 291 | 297 | 281 | 279 | 299 | 279 | 264
Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance | 266 | 260 | 249 | 243 | 229 | 207 | 173 | 129 | 63 | 14
Total of IBNR liabilities plus expected development on reported claims | $ 14 |  |  |  |  |  |  |  |  |
Cumulative number of reported claims | claims | 14,494 |  |  |  |  |  |  |  |  |
Insurance | Third party claims-made business | 2015 |  |  |  |  |  |  |  |  |  |
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items] |  |  |  |  |  |  |  |  |  |
Incurred losses and allocated loss adjustment expenses, net of reinsurance | $ 274 | 267 | 268 | 252 | 255 | 260 | 276 | 277 | 259 |
Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance | 242 | 221 | 217 | 193 | 174 | 126 | 100 | 52 | 9 |
Total of IBNR liabilities plus expected development on reported claims | $ 13 |  |  |  |  |  |  |  |  |
Cumulative number of reported claims | claims | 13,932 |  |  |  |  |  |  |  |  |
Insurance | Third party claims-made business | 2016 |  |  |  |  |  |  |  |  |  |
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items] |  |  |  |  |  |  |  |  |  |
Incurred losses and allocated loss adjustment expenses, net of reinsurance | $ 327 | 330 | 327 | 322 | 314 | 308 | 291 | 275 |  |
Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance | 296 | 257 | 242 | 205 | 158 | 127 | 68 | 11 |  |
Total of IBNR liabilities plus expected development on reported claims | $ 18 |  |  |  |  |  |  |  |  |
Cumulative number of reported claims | claims | 14,912 |  |  |  |  |  |  |  |  |
Insurance | Third party claims-made business | 2017 |  |  |  |  |  |  |  |  |  |
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items] |  |  |  |  |  |  |  |  |  |
Incurred losses and allocated loss adjustment expenses, net of reinsurance | $ 338 | 317 | 323 | 308 | 312 | 286 | 270 |  |  |
Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance | 258 | 233 | 196 | 143 | 113 | 68 | 9 |  |  |
Total of IBNR liabilities plus expected development on reported claims | $ 48 |  |  |  |  |  |  |  |  |
Cumulative number of reported claims | claims | 15,473 |  |  |  |  |  |  |  |  |
Insurance | Third party claims-made business | 2018 |  |  |  |  |  |  |  |  |  |
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items] |  |  |  |  |  |  |  |  |  |
Incurred losses and allocated loss adjustment expenses, net of reinsurance | $ 367 | 347 | 336 | 320 | 314 | 273 |  |  |  |
Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance | 258 | 208 | 158 | 118 | 68 | 12 |  |  |  |
Total of IBNR liabilities plus expected development on reported claims | $ 44 |  |  |  |  |  |  |  |  |
Cumulative number of reported claims | claims | 17,098 |  |  |  |  |  |  |  |  |
Insurance | Third party claims-made business | 2019 |  |  |  |  |  |  |  |  |  |
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items] |  |  |  |  |  |  |  |  |  |
Incurred losses and allocated loss adjustment expenses, net of reinsurance | $ 330 | 322 | 317 | 317 | 289 |  |  |  |  |
Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance | 197 | 155 | 122 | 65 | 12 |  |  |  |  |
Total of IBNR liabilities plus expected development on reported claims | $ 66 |  |  |  |  |  |  |  |  |
Cumulative number of reported claims | claims | 15,879 |  |  |  |  |  |  |  |  |
Insurance | Third party claims-made business | 2020 |  |  |  |  |  |  |  |  |  |
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items] |  |  |  |  |  |  |  |  |  |
Incurred losses and allocated loss adjustment expenses, net of reinsurance | $ 446 | 423 | 413 | 383 |  |  |  |  |  |
Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance | 215 | 152 | 87 | 17 |  |  |  |  |  |
Total of IBNR liabilities plus expected development on reported claims | $ 118 |  |  |  |  |  |  |  |  |
Cumulative number of reported claims | claims | 15,239 |  |  |  |  |  |  |  |  |
Insurance | Third party claims-made business | 2021 |  |  |  |  |  |  |  |  |  |
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items] |  |  |  |  |  |  |  |  |  |
Incurred losses and allocated loss adjustment expenses, net of reinsurance | $ 499 | 518 | 515 |  |  |  |  |  |  |
Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance | 163 | 90 | 23 |  |  |  |  |  |  |
Total of IBNR liabilities plus expected development on reported claims | $ 254 |  |  |  |  |  |  |  |  |
Cumulative number of reported claims | claims | 16,323 |  |  |  |  |  |  |  |  |
Insurance | Third party claims-made business | 2022 |  |  |  |  |  |  |  |  |  |
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items] |  |  |  |  |  |  |  |  |  |
Incurred losses and allocated loss adjustment expenses, net of reinsurance | $ 655 | 669 |  |  |  |  |  |  |  |
Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance | 100 | 25 |  |  |  |  |  |  |  |
Total of IBNR liabilities plus expected development on reported claims | $ 448 |  |  |  |  |  |  |  |  |
Cumulative number of reported claims | claims | 18,563 |  |  |  |  |  |  |  |  |
Insurance | Third party claims-made business | 2023 |  |  |  |  |  |  |  |  |  |
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items] |  |  |  |  |  |  |  |  |  |
Incurred losses and allocated loss adjustment expenses, net of reinsurance | $ 811 |  |  |  |  |  |  |  |  |
Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance | 64 |  |  |  |  |  |  |  |  |
Total of IBNR liabilities plus expected development on reported claims | $ 641 |  |  |  |  |  |  |  |  |
Cumulative number of reported claims | claims | 20,494 |  |  |  |  |  |  |  |  |
Insurance | Multi-line and other specialty |  |  |  |  |  |  |  |  |  |
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items] |  |  |  |  |  |  |  |  |  |
Incurred losses and allocated loss adjustment expenses, net of reinsurance | $ 5,389 |  |  |  |  |  |  |  |  |
Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance | 4,065 |  |  |  |  |  |  |  |  |
All outstanding liabilities before 2014, net of reinsurance | 24 |  |  |  |  |  |  |  |  |
Liabilities for losses and loss adjustment expenses, net of reinsurance | 1,348 |  |  |  |  |  |  |  |  |
Insurance | Multi-line and other specialty | 2014 |  |  |  |  |  |  |  |  |  |
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items] |  |  |  |  |  |  |  |  |  |
Incurred losses and allocated loss adjustment expenses, net of reinsurance | 310 | 311 | 309 | 310 | 313 | 317 | 318 | 318 | 326 | 302
Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance | 297 | 296 | 295 | 293 | 292 | 281 | 267 | 234 | 197 | $ 108
Total of IBNR liabilities plus expected development on reported claims | $ 4 |  |  |  |  |  |  |  |  |
Cumulative number of reported claims | claims | 148,702 |  |  |  |  |  |  |  |  |
Insurance | Multi-line and other specialty | 2015 |  |  |  |  |  |  |  |  |  |
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items] |  |  |  |  |  |  |  |  |  |
Incurred losses and allocated loss adjustment expenses, net of reinsurance | $ 345 | 345 | 347 | 349 | 357 | 365 | 357 | 358 | 335 |
Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance | 333 | 331 | 330 | 327 | 321 | 306 | 278 | 236 | $ 138 |
Total of IBNR liabilities plus expected development on reported claims | $ 5 |  |  |  |  |  |  |  |  |
Cumulative number of reported claims | claims | 180,468 |  |  |  |  |  |  |  |  |
Insurance | Multi-line and other specialty | 2016 |  |  |  |  |  |  |  |  |  |
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items] |  |  |  |  |  |  |  |  |  |
Incurred losses and allocated loss adjustment expenses, net of reinsurance | $ 406 | 409 | 408 | 410 | 416 | 428 | 431 | 409 |  |
Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance | 392 | 390 | 385 | 379 | 363 | 342 | 305 | $ 176 |  |
Total of IBNR liabilities plus expected development on reported claims | $ 7 |  |  |  |  |  |  |  |  |
Cumulative number of reported claims | claims | 192,955 |  |  |  |  |  |  |  |  |
Insurance | Multi-line and other specialty | 2017 |  |  |  |  |  |  |  |  |  |
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items] |  |  |  |  |  |  |  |  |  |
Incurred losses and allocated loss adjustment expenses, net of reinsurance | $ 516 | 513 | 504 | 501 | 491 | 501 | 482 |  |  |
Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance | 480 | 472 | 446 | 423 | 381 | 342 | $ 181 |  |  |
Total of IBNR liabilities plus expected development on reported claims | $ 9 |  |  |  |  |  |  |  |  |
Cumulative number of reported claims | claims | 235,539 |  |  |  |  |  |  |  |  |
Insurance | Multi-line and other specialty | 2018 |  |  |  |  |  |  |  |  |  |
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items] |  |  |  |  |  |  |  |  |  |
Incurred losses and allocated loss adjustment expenses, net of reinsurance | $ 565 | 565 | 565 | 563 | 565 | 512 |  |  |  |
Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance | 527 | 509 | 480 | 443 | 389 | $ 212 |  |  |  |
Total of IBNR liabilities plus expected development on reported claims | $ 14 |  |  |  |  |  |  |  |  |
Cumulative number of reported claims | claims | 260,995 |  |  |  |  |  |  |  |  |
Insurance | Multi-line and other specialty | 2019 |  |  |  |  |  |  |  |  |  |
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items] |  |  |  |  |  |  |  |  |  |
Incurred losses and allocated loss adjustment expenses, net of reinsurance | $ 657 | 651 | 640 | 612 | 567 |  |  |  |  |
Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance | 577 | 549 | 487 | 386 | $ 212 |  |  |  |  |
Total of IBNR liabilities plus expected development on reported claims | $ 21 |  |  |  |  |  |  |  |  |
Cumulative number of reported claims | claims | 252,766 |  |  |  |  |  |  |  |  |
Insurance | Multi-line and other specialty | 2020 |  |  |  |  |  |  |  |  |  |
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items] |  |  |  |  |  |  |  |  |  |
Incurred losses and allocated loss adjustment expenses, net of reinsurance | $ 517 | 515 | 569 | 618 |  |  |  |  |  |
Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance | 406 | 359 | 309 | $ 172 |  |  |  |  |  |
Total of IBNR liabilities plus expected development on reported claims | $ 44 |  |  |  |  |  |  |  |  |
Cumulative number of reported claims | claims | 166,357 |  |  |  |  |  |  |  |  |
Insurance | Multi-line and other specialty | 2021 |  |  |  |  |  |  |  |  |  |
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items] |  |  |  |  |  |  |  |  |  |
Incurred losses and allocated loss adjustment expenses, net of reinsurance | $ 614 | 619 | 635 |  |  |  |  |  |  |
Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance | 428 | 335 | $ 157 |  |  |  |  |  |  |
Total of IBNR liabilities plus expected development on reported claims | $ 76 |  |  |  |  |  |  |  |  |
Cumulative number of reported claims | claims | 114,447 |  |  |  |  |  |  |  |  |
Insurance | Multi-line and other specialty | 2022 |  |  |  |  |  |  |  |  |  |
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items] |  |  |  |  |  |  |  |  |  |
Incurred losses and allocated loss adjustment expenses, net of reinsurance | $ 642 | 678 |  |  |  |  |  |  |  |
Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance | 371 | $ 177 |  |  |  |  |  |  |  |
Total of IBNR liabilities plus expected development on reported claims | $ 157 |  |  |  |  |  |  |  |  |
Cumulative number of reported claims | claims | 143,264 |  |  |  |  |  |  |  |  |
Insurance | Multi-line and other specialty | 2023 |  |  |  |  |  |  |  |  |  |
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items] |  |  |  |  |  |  |  |  |  |
Incurred losses and allocated loss adjustment expenses, net of reinsurance | $ 817 |  |  |  |  |  |  |  |  |
Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance | 254 |  |  |  |  |  |  |  |  |
Total of IBNR liabilities plus expected development on reported claims | $ 450 |  |  |  |  |  |  |  |  |
Cumulative number of reported claims | claims | 118,241 |  |  |  |  |  |  |  |  |

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