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Segment information (Tables) | 6 Months Ended
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Jun. 30, 2017
Segment Reporting [Abstract] |
Operations By Segment | The following tables present the Statement of Operations by segment:
| North America Commercial P&C Insurance |  |  | North America Personal P&C Insurance |  |  | North America Agricultural Insurance |  |  | Overseas General Insurance |  |  | Global Reinsurance |  |  | Life Insurance |  |  | Corporate |  |  | Chubb Consolidated |
For the Three Months Ended |  |  |  |  |  |
June 30, 2017 |  |  |  |  |  |
(in millions of U.S. dollars) |  |  |  |  |  |
Net premiums written | $ | 3,204 |  |  | $ | 1,255 |  |  | $ | 403 |  |  | $ | 2,006 |  |  | $ | 190 |  |  | $ | 523 |  |  | $ | — |  |  | $ | 7,581 |
Net premiums earned | 3,099 |  |  | 1,093 |  |  | 344 |  |  | 2,018 |  |  | 168 |  |  | 515 |  |  | — |  |  | 7,237 |
Losses and loss expenses | 1,936 |  |  | 683 |  |  | 290 |  |  | 964 |  |  | 46 |  |  | 182 |  |  | 45 |  |  | 4,146 |
Policy benefits | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 163 |  |  | — |  |  | 163 |
Policy acquisition costs | 464 |  |  | 230 |  |  | 27 |  |  | 555 |  |  | 43 |  |  | 130 |  |  | — |  |  | 1,449 |
Administrative expenses | 241 |  |  | 66 |  |  | 2 |  |  | 243 |  |  | 12 |  |  | 77 |  |  | 65 |  |  | 706 |
Underwriting income (loss) | 458 |  |  | 114 |  |  | 25 |  |  | 256 |  |  | 67 |  |  | (37 | ) |  | (110 | ) |  | 773 |
Net investment income (loss) | 490 |  |  | 56 |  |  | 6 |  |  | 148 |  |  | 65 |  |  | 77 |  |  | (72 | ) |  | 770 |
Other (income) expense | (4 | ) |  | 1 |  |  | 1 |  |  | (3 | ) |  | 1 |  |  | (12 | ) |  | (129 | ) |  | (145 | )
Amortization expense of purchased intangibles | — |  |  | 5 |  |  | 7 |  |  | 11 |  |  | — |  |  | — |  |  | 42 |  |  | 65 |
Segment income (loss) | $ | 952 |  |  | $ | 164 |  |  | $ | 23 |  |  | $ | 396 |  |  | $ | 131 |  |  | $ | 52 |  |  | $ | (95 | ) |  | $ | 1,623 |
Net realized gains (losses) including OTTI |  |  |  |  |  |  |  |  |  |  |  |  | 101 |  |  | 101 |
Interest expense |  |  |  |  |  |  |  |  |  |  |  |  | 147 |  |  | 147 |
Chubb integration expenses |  |  |  |  |  |  |  |  |  |  |  |  | 72 |  |  | 72 |
Income tax expense |  |  |  |  |  |  |  |  |  |  |  |  | 200 |  |  | 200 |
Net income (loss) |  |  |  |  |  |  |  |  |  |  |  |  | $ | (413 | ) |  | $ | 1,305 |
| North America Commercial P&C Insurance |  |  | North America Personal P&C Insurance |  |  | North America Agricultural Insurance |  |  | Overseas General Insurance |  |  | Global Reinsurance |  |  | Life Insurance |  |  | Corporate |  |  | Chubb Consolidated |
For the Three Months Ended |  |  |  |  |
June 30, 2016 |  |  |  |  |
(in millions of U.S. dollars) |  |  |  |  |
Net premiums written | $ | 3,245 |  |  | $ | 1,231 |  |  | $ | 375 |  |  | $ | 2,031 |  |  | $ | 230 |  |  | $ | 527 |  |  | $ | — |  |  | $ | 7,639 |
Net premiums earned | 3,148 |  |  | 1,140 |  |  | 327 |  |  | 2,093 |  |  | 185 |  |  | 512 |  |  | — |  |  | 7,405 |
Losses and loss expenses | 1,971 |  |  | 661 |  |  | 284 |  |  | 1,089 |  |  | 87 |  |  | 147 |  |  | 15 |  |  | 4,254 |
Policy benefits | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 146 |  |  | — |  |  | 146 |
Policy acquisition costs | 545 |  |  | 269 |  |  | 25 |  |  | 537 |  |  | 47 |  |  | 137 |  |  | — |  |  | 1,560 |
Administrative expenses | 299 |  |  | 98 |  |  | 2 |  |  | 277 |  |  | 14 |  |  | 77 |  |  | 62 |  |  | 829 |
Underwriting income (loss) | 333 |  |  | 112 |  |  | 16 |  |  | 190 |  |  | 37 |  |  | 5 |  |  | (77 | ) |  | 616 |
Net investment income (loss) | 468 |  |  | 55 |  |  | 5 |  |  | 147 |  |  | 65 |  |  | 69 |  |  | (101 | ) |  | 708 |
Other (income) expense | (9 | ) |  | 3 |  |  | — |  |  | (5 | ) |  | (2 | ) |  | — |  |  | (16 | ) |  | (29 | )
Amortization expense (benefit) of purchased intangibles | — |  |  | 4 |  |  | 8 |  |  | 13 |  |  | — |  |  | — |  |  | (20 | ) |  | 5 |
Segment income (loss) | $ | 810 |  |  | $ | 160 |  |  | $ | 13 |  |  | $ | 329 |  |  | $ | 104 |  |  | $ | 74 |  |  | $ | (142 | ) |  | $ | 1,348 |
Net realized gains (losses) including OTTI |  |  |  |  |  |  |  |  |  |  |  |  | (216 | ) |  | (216 | )
Interest expense |  |  |  |  |  |  |  |  |  |  |  |  | 153 |  |  | 153 |
Chubb integration expenses |  |  |  |  |  |  |  |  |  |  |  |  | 98 |  |  | 98 |
Income tax expense |  |  |  |  |  |  |  |  |  |  |  |  | 155 |  |  | 155 |
Net income (loss) |  |  |  |  |  |  |  |  |  |  |  |  |  | $ | (764 | ) |  | $ | 726 |
| North America Commercial P&C Insurance |  |  | North America Personal P&C Insurance |  |  | North America Agricultural Insurance |  |  | Overseas General Insurance |  |  | Global Reinsurance |  |  | Life Insurance |  |  | Corporate |  |  | Chubb Consolidated |
For the Six Months Ended |  |  |  |  |
June 30, 2017 |  |  |  |  |
(in millions of U.S. dollars) |  |  |  |  |
Net premiums written | $ | 5,946 |  |  | $ | 2,239 |  |  | $ | 464 |  |  | $ | 4,206 |  |  | $ | 389 |  |  | $ | 1,047 |  |  | $ | — |  |  | $ | 14,291 |
Net premiums earned | 6,140 |  |  | 2,179 |  |  | 358 |  |  | 3,954 |  |  | 357 |  |  | 1,021 |  |  | — |  |  | 14,009 |
Losses and loss expenses | 3,796 |  |  | 1,316 |  |  | 217 |  |  | 2,035 |  |  | 140 |  |  | 375 |  |  | 56 |  |  | 7,935 |
Policy benefits | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 331 |  |  | — |  |  | 331 |
Policy acquisition costs | 951 |  |  | 447 |  |  | 26 |  |  | 1,084 |  |  | 94 |  |  | 244 |  |  | — |  |  | 2,846 |
Administrative expenses | 472 |  |  | 131 |  |  | (3 | ) |  | 488 |  |  | 22 |  |  | 149 |  |  | 123 |  |  | 1,382 |
Underwriting income (loss) | 921 |  |  | 285 |  |  | 118 |  |  | 347 |  |  | 101 |  |  | (78 | ) |  | (179 | ) |  | 1,515 |
Net investment income (loss) | 968 |  |  | 111 |  |  | 12 |  |  | 296 |  |  | 127 |  |  | 152 |  |  | (151 | ) |  | 1,515 |
Other (income) expense | — |  |  | 2 |  |  | 1 |  |  | (4 | ) |  | 1 |  |  | (41 | ) |  | (174 | ) |  | (215 | )
Amortization expense of purchased intangibles | — |  |  | 8 |  |  | 14 |  |  | 22 |  |  | — |  |  | 1 |  |  | 84 |  |  | 129 |
Segment income (loss) | $ | 1,889 |  |  | $ | 386 |  |  | $ | 115 |  |  | $ | 625 |  |  | $ | 227 |  |  | $ | 114 |  |  | $ | (240 | ) |  | $ | 3,116 |
Net realized gains (losses) including OTTI |  |  |  |  |  |  |  |  |  |  |  |  | 94 |  |  | 94 |
Interest expense |  |  |  |  |  |  |  |  |  |  |  |  | 301 |  |  | 301 |
Chubb integration expenses |  |  |  |  |  |  |  |  |  |  |  |  | 183 |  |  | 183 |
Income tax expense |  |  |  |  |  |  |  |  |  |  |  |  | 328 |  |  | 328 |
Net income (loss) |  |  |  |  |  |  |  |  |  |  |  |  | $ | (958 | ) |  | $ | 2,398 |
| North America Commercial P&C Insurance |  |  | North America Personal P&C Insurance |  |  | North America Agricultural Insurance |  |  | Overseas General Insurance |  |  | Global Reinsurance |  |  | Life Insurance |  |  | Corporate |  |  | Chubb Consolidated |
For the Six Months Ended |  |  |  |  |
June 30, 2016 |  |  |  |  |
(in millions of U.S. dollars) |  |  |  |  |
Net premiums written | $ | 5,547 |  |  | $ | 2,102 |  |  | $ | 439 |  |  | $ | 4,072 |  |  | $ | 431 |  |  | $ | 1,043 |  |  | $ | — |  |  | $ | 13,634 |
Net premiums earned | 6,044 |  |  | 2,164 |  |  | 350 |  |  | 4,048 |  |  | 387 |  |  | 1,009 |  |  | — |  |  | 14,002 |
Losses and loss expenses | 3,718 |  |  | 1,322 |  |  | 254 |  |  | 2,110 |  |  | 176 |  |  | 324 |  |  | 24 |  |  | 7,928 |
Policy benefits | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 272 |  |  | — |  |  | 272 |
Policy acquisition costs | 1,027 |  |  | 518 |  |  | 29 |  |  | 1,040 |  |  | 100 |  |  | 259 |  |  | — |  |  | 2,973 |
Administrative expenses | 565 |  |  | 186 |  |  | (2 | ) |  | 540 |  |  | 28 |  |  | 149 |  |  | 135 |  |  | 1,601 |
Underwriting income (loss) | 734 |  |  | 138 |  |  | 69 |  |  | 358 |  |  | 83 |  |  | 5 |  |  | (159 | ) |  | 1,228 |
Net investment income (loss) | 894 |  |  | 102 |  |  | 10 |  |  | 293 |  |  | 132 |  |  | 136 |  |  | (185 | ) |  | 1,382 |
Other (income) expense | (9 | ) |  | 4 |  |  | — |  |  | (10 | ) |  | (3 | ) |  | 6 |  |  | 11 |  |  | (1 | )
Amortization expense (benefit) of purchased intangibles | — |  |  | 12 |  |  | 15 |  |  | 24 |  |  | — |  |  | 1 |  |  | (40 | ) |  | 12 |
Segment income (loss) | $ | 1,637 |  |  | $ | 224 |  |  | $ | 64 |  |  | $ | 637 |  |  | $ | 218 |  |  | $ | 134 |  |  | $ | (315 | ) |  | $ | 2,599 |
Net realized gains (losses) including OTTI |  |  |  |  |  |  |  |  |  |  |  |  | (610 | ) |  | (610 | )
Interest expense |  |  |  |  |  |  |  |  |  |  |  |  | 299 |  |  | 299 |
Chubb integration expenses |  |  |  |  |  |  |  |  |  |  |  |  | 246 |  |  | 246 |
Income tax expense |  |  |  |  |  |  |  |  |  |  |  |  | 279 |  |  | 279 |
Net income (loss) |  |  |  |  |  |  |  |  |  |  |  |  | $ | (1,749 | ) |  | $ | 1,165 |

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