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Business Segments (Income Statement Information) (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022
Operating revenues |  |  |  |  |  |
Net earned premiums | $ 2,347 | $ 2,155 | [1] | $ 4,595 | $ 4,214 | [1]
Net investment income | 575 | 432 | [1] | 1,100 | 880 | [1]
Non-insurance warranty revenue | 407 | 392 | [1] | 814 | 774 | [1]
Other revenues | 7 | 6 | [1] | 14 | 13 | [1]
Total operating revenues | 3,336 | 2,985 |  | 6,523 | 5,881 |
Claims, Benefits and Expenses |  |  |  |  |  |
Net incurred claims and benefits | 1,772 | 1,594 |  | 3,418 | 3,066 |
Policyholders’ dividends | 7 | 7 |  | 14 | 13 |
Amortization of deferred acquisition costs | 403 | 374 | [1] | 782 | 718 | [1]
Non-insurance warranty expense | 384 | 367 | [1] | 768 | 721 | [1]
Other insurance related expenses | 318 | 275 |  | 623 | 566 |
Other expenses | 59 | 82 |  | 119 | 145 |
Total claims, benefits and expenses | 2,943 | 2,699 | [1] | 5,724 | 5,229 |
Core income (loss) before income tax | 393 | 286 |  | 799 | 652 |
Income tax (expense) benefit on core income (loss) | (85) | (56) |  | (166) | (124) |
Core income (loss) | 308 | 230 |  | 633 | 528 |
Net investment gains (losses) | (32) | (59) |  | (67) | (70) |
Income tax (expense) benefit on net investment gains (losses) | 7 | 19 |  | 14 | 27 |
Net investment gains (losses), after tax | (25) | (40) |  | (53) | (43) |
Net income (loss) | 283 | 190 |  | 580 | 485 |
Operating Segments | Specialty |  |  |  |  |  |
Operating revenues |  |  |  |  |  |
Net earned premiums | 812 | 794 |  | 1,609 | 1,566 |
Net investment income | 142 | 100 |  | 271 | 203 |
Non-insurance warranty revenue | 407 | 392 |  | 814 | 774 |
Other revenues | 0 | 0 |  | 0 | 1 |
Total operating revenues | 1,361 | 1,286 |  | 2,694 | 2,544 |
Claims, Benefits and Expenses |  |  |  |  |  |
Net incurred claims and benefits | 474 | 456 |  | 939 | 901 |
Policyholders’ dividends | 2 | 2 |  | 3 | 3 |
Amortization of deferred acquisition costs | 168 | 162 |  | 333 | 319 |
Non-insurance warranty expense | 384 | 367 |  | 768 | 721 |
Other insurance related expenses | 94 | 81 |  | 180 | 162 |
Other expenses | 12 | 12 |  | 26 | 25 |
Total claims, benefits and expenses | 1,134 | 1,080 |  | 2,249 | 2,131 |
Core income (loss) before income tax | 227 | 206 |  | 445 | 413 |
Income tax (expense) benefit on core income (loss) | (50) | (45) |  | (97) | (89) |
Core income (loss) | 177 | 161 |  | 348 | 324 |
Operating Segments | Commercial |  |  |  |  |  |
Operating revenues |  |  |  |  |  |
Net earned premiums | 1,120 | 974 |  | 2,166 | 1,878 |
Net investment income | 165 | 113 |  | 314 | 231 |
Non-insurance warranty revenue | 0 | 0 |  | 0 | 0 |
Other revenues | 6 | 4 |  | 13 | 12 |
Total operating revenues | 1,291 | 1,091 |  | 2,493 | 2,121 |
Claims, Benefits and Expenses |  |  |  |  |  |
Net incurred claims and benefits | 740 | 610 |  | 1,428 | 1,183 |
Policyholders’ dividends | 5 | 5 |  | 11 | 10 |
Amortization of deferred acquisition costs | 175 | 156 |  | 344 | 304 |
Non-insurance warranty expense | 0 | 0 |  | 0 | 0 |
Other insurance related expenses | 158 | 134 |  | 300 | 264 |
Other expenses | 10 | 11 |  | 16 | 18 |
Total claims, benefits and expenses | 1,088 | 916 |  | 2,099 | 1,779 |
Core income (loss) before income tax | 203 | 175 |  | 394 | 342 |
Income tax (expense) benefit on core income (loss) | (44) | (37) |  | (84) | (72) |
Core income (loss) | 159 | 138 |  | 310 | 270 |
Operating Segments | International |  |  |  |  |  |
Operating revenues |  |  |  |  |  |
Net earned premiums | 302 | 269 |  | 592 | 533 |
Net investment income | 25 | 14 |  | 48 | 28 |
Non-insurance warranty revenue | 0 | 0 |  | 0 | 0 |
Other revenues | 1 | 1 |  | 1 | 0 |
Total operating revenues | 328 | 284 |  | 641 | 561 |
Claims, Benefits and Expenses |  |  |  |  |  |
Net incurred claims and benefits | 185 | 160 |  | 374 | 318 |
Policyholders’ dividends | 0 | 0 |  | 0 | 0 |
Amortization of deferred acquisition costs | 60 | 56 |  | 105 | 95 |
Non-insurance warranty expense | 0 | 0 |  | 0 | 0 |
Other insurance related expenses | 35 | 30 |  | 82 | 77 |
Other expenses | (5) | 13 |  | (4) | 14 |
Total claims, benefits and expenses | 275 | 259 |  | 557 | 504 |
Core income (loss) before income tax | 53 | 25 |  | 84 | 57 |
Income tax (expense) benefit on core income (loss) | (15) | (7) |  | (22) | (13) |
Core income (loss) | 38 | 18 |  | 62 | 44 |
Operating Segments | Life & Group |  |  |  |  |  |
Operating revenues |  |  |  |  |  |
Net earned premiums | 113 | 118 |  | 228 | 238 |
Net investment income | 229 | 201 |  | 443 | 413 |
Non-insurance warranty revenue | 0 | 0 |  | 0 | 0 |
Other revenues | 0 | 1 |  | 0 | 0 |
Total operating revenues | 342 | 320 |  | 671 | 651 |
Claims, Benefits and Expenses |  |  |  |  |  |
Net incurred claims and benefits | 344 | 311 |  | 655 | 615 |
Policyholders’ dividends | 0 | 0 |  | 0 | 0 |
Amortization of deferred acquisition costs | 0 | 0 |  | 0 | 0 |
Non-insurance warranty expense | 0 | 0 |  | 0 | 0 |
Other insurance related expenses | 31 | 29 |  | 60 | 60 |
Other expenses | 0 | 2 |  | 1 | 5 |
Total claims, benefits and expenses | 375 | 342 |  | 716 | 680 |
Core income (loss) before income tax | (33) | (22) |  | (45) | (29) |
Income tax (expense) benefit on core income (loss) | 13 | 13 |  | 22 | 25 |
Core income (loss) | (20) | (9) |  | (23) | (4) |
Operating Segments | Corporate & Other |  |  |  |  |  |
Operating revenues |  |  |  |  |  |
Net earned premiums | 0 | 0 |  | 0 | (1) |
Net investment income | 14 | 4 |  | 24 | 5 |
Non-insurance warranty revenue | 0 | 0 |  | 0 | 0 |
Other revenues | 2 | 1 |  | 5 | 3 |
Total operating revenues | 16 | 5 |  | 29 | 7 |
Claims, Benefits and Expenses |  |  |  |  |  |
Net incurred claims and benefits | 29 | 57 |  | 22 | 49 |
Policyholders’ dividends | 0 | 0 |  | 0 | 0 |
Amortization of deferred acquisition costs | 0 | 0 |  | 0 | 0 |
Non-insurance warranty expense | 0 | 0 |  | 0 | 0 |
Other insurance related expenses | 0 | 1 |  | 1 | 3 |
Other expenses | 44 | 45 |  | 85 | 86 |
Total claims, benefits and expenses | 73 | 103 |  | 108 | 138 |
Core income (loss) before income tax | (57) | (98) |  | (79) | (131) |
Income tax (expense) benefit on core income (loss) | 11 | 20 |  | 15 | 25 |
Core income (loss) | (46) | (78) |  | (64) | (106) |
Eliminations |  |  |  |  |  |
Operating revenues |  |  |  |  |  |
Net earned premiums | 0 | 0 |  | 0 | 0 |
Net investment income | 0 | 0 |  | 0 | 0 |
Non-insurance warranty revenue | 0 | 0 |  | 0 | 0 |
Other revenues | (2) | (1) |  | (5) | (3) |
Total operating revenues | (2) | (1) |  | (5) | (3) |
Claims, Benefits and Expenses |  |  |  |  |  |
Net incurred claims and benefits | 0 | 0 |  | 0 | 0 |
Policyholders’ dividends | 0 | 0 |  | 0 | 0 |
Amortization of deferred acquisition costs | 0 | 0 |  | 0 | 0 |
Non-insurance warranty expense | 0 | 0 |  | 0 | 0 |
Other insurance related expenses | 0 | 0 |  | 0 | 0 |
Other expenses | (2) | (1) |  | (5) | (3) |
Total claims, benefits and expenses | (2) | (1) |  | (5) | (3) |
Core income (loss) before income tax | 0 | 0 |  | 0 | 0 |
Income tax (expense) benefit on core income (loss) | 0 | 0 |  | 0 | 0 |
Core income (loss) | $ 0 | $ 0 |  | $ 0 | $ 0 |
[1] | As of January 1, 2023, the Company adopted ASU 2018-12, Financial Services-Insurance (Topic 944): Targeted Improvements to the Accounting for Long-Duration Contracts (ASU 2018-12) using the modified retrospective method applied as of the transition date of January 1, 2021. Prior period amounts in the financial statements have been adjusted to reflect application of the new guidance. See Note A to the Condensed Consolidated Financial Statements for additional information.

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