Investments (Tables)
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9 Months Ended |
Sep. 30, 2026 |
| Investments [Abstract] |
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| Amortized Cost, Gross Unrealized Gains, Gross Unrealized Losses and Fair Value of Fixed-maturity Securities |
The following table provides amortized cost, gross unrealized gains, gross unrealized losses and fair value for our fixed-maturity and short-term investments: | | | | | | | | | | | | | | | | | | | | | | | | | | | | (Dollars in millions) | | Amortized cost | | Gross unrealized | | Fair value | | At September 30, 2026 | | | gains | | losses | | | Fixed-maturity: | | | | | | | | | | Corporate | | $ | 11,191 | | | $ | 27 | | | $ | 676 | | | $ | 10,542 | | | States, municipalities and political subdivisions | | 4,982 | | | — | | | 507 | | | 4,475 | | | Government-sponsored enterprises | | 2,948 | | | — | | | 268 | | | 2,680 | | | Asset-backed | | 945 | | | — | | | 47 | | | 898 | | | United States government | | 326 | | | — | | | 15 | | | 311 | | | Foreign government | | 19 | | | — | | | — | | | 19 | | | | | | | | | | | | Total fixed-maturity | | 20,411 | | | 27 | | | 1,513 | | | 18,925 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Short-term | | 144 | | | — | | | 3 | | | 141 | | | Total fixed-maturity and short-term investments | | $ | 20,555 | | | $ | 27 | | | $ | 1,516 | | | $ | 19,066 | | | At December 31, 2025 | | | | | | | | | | Fixed-maturity: | | | | | | | | | | Corporate | | $ | 9,750 | | | $ | 164 | | | $ | 203 | | | $ | 9,711 | | | States, municipalities and political subdivisions | | 5,065 | | | 35 | | | 181 | | | 4,919 | | | Government-sponsored enterprises | | 2,360 | | | 3 | | | 4 | | | 2,359 | | | Asset-backed | | 793 | | | 12 | | | 8 | | | 797 | | | United States government | | 312 | | | 2 | | | 1 | | | 313 | | | Foreign government | | 24 | | | — | | | — | | | 24 | | | | | | | | | | | | Total fixed-maturity | | 18,304 | | | 216 | | | 397 | | | 18,123 | | | Short-term | | 148 | | | — | | | — | | | 148 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Total fixed-maturity and short-term investments | | $ | 18,452 | | | $ | 216 | | | $ | 397 | | | $ | 18,271 | | | | | | | | | | |
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| Fair Value and Unrealized Losses by Investment Category and By the Duration of the Securities' Continuous Unrealized Loss Position |
The table below provides fair values and gross unrealized losses by investment category and by the duration of the continuous unrealized loss positions: | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | (Dollars in millions) | | Less than 12 months | | 12 months or more | | Total | | At September 30, 2026 | | Fair value | | Unrealized losses | | Fair value | | Unrealized losses | | Fair value | | Unrealized losses | | Fixed-maturity: | | | | | | | | | | | | | | Corporate | | $ | 6,972 | | | $ | 355 | | | $ | 2,473 | | | $ | 321 | | | $ | 9,445 | | | $ | 676 | | | States, municipalities and political subdivisions | | 2,436 | | | 147 | | | 1,852 | | | 360 | | | 4,288 | | | 507 | | | Government-sponsored enterprises | | 2,397 | | | 242 | | | 283 | | | 26 | | | 2,680 | | | 268 | | | Asset-backed | | 642 | | | 28 | | | 198 | | | 19 | | | 840 | | | 47 | | | United States government | | 293 | | | 14 | | | 18 | | | 1 | | | 311 | | | 15 | | | Foreign government | | 19 | | | — | | | — | | | — | | | 19 | | | — | | | Total fixed-maturity | | 12,759 | | | 786 | | | 4,824 | | | 727 | | | 17,583 | | | 1,513 | | | Short-term | | 141 | | | 3 | | | — | | | — | | | 141 | | | 3 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Total fixed-maturity and short-term investments | | $ | 12,900 | | | $ | 789 | | | $ | 4,824 | | | $ | 727 | | | $ | 17,724 | | | $ | 1,516 | | | At December 31, 2025 | | | | | | | | | | | | | | Fixed-maturity: | | | | | | | | | | | | | | Corporate | | $ | 849 | | | $ | 15 | | | $ | 2,926 | | | $ | 188 | | | $ | 3,775 | | | $ | 203 | | | States, municipalities and political subdivisions | | 204 | | | 2 | | | 2,346 | | | 179 | | | 2,550 | | | 181 | | | Government-sponsored enterprises | | 983 | | | 3 | | | 195 | | | 1 | | | 1,178 | | | 4 | | | Asset-backed | | 101 | | | 2 | | | 184 | | | 6 | | | 285 | | | 8 | | | United States government | | 69 | | | — | | | 20 | | | 1 | | | 89 | | | 1 | | | | | | | | | | | | | | | | Total fixed-maturity | | $ | 2,206 | | | $ | 22 | | | $ | 5,671 | | | $ | 375 | | | $ | 7,877 | | | $ | 397 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
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| Investments Classified by Contractual Maturity Date |
Contractual maturity dates for our fixed-maturity and short-term investments were: | | | | | | | | | | | | | | | | | | | | | | (Dollars in millions) | | Amortized cost | | Fair value | | % of fair value | | At September 30, 2026 | | | | | Maturity dates: | | | | | | | | Due in one year or less | | $ | 854 | | | $ | 846 | | | 4.4 | % | | Due after one year through five years | | 3,239 | | | 3,175 | | | 16.7 | | | Due after five years through ten years | | 5,606 | | | 5,296 | | | 27.8 | | | Due after ten years | | 10,856 | | | 9,749 | | | 51.1 | | | Total | | $ | 20,555 | | | $ | 19,066 | | | 100.0 | % | | | | | | | |
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| Investment Income, Realized Investment Gains And Losses And Change In Unrealized Investment Gains And Losses |
The following table provides investment income and investment gains and losses, net: | | | | | | | | | | | | | | | | | | | | | | | | | (Dollars in millions) | Three months ended September 30, | | Nine months ended September 30, | | 2026 | | 2025 | | 2026 | | 2025 | | Investment income: | | | | | | | | | Interest | $ | 252 | | | $ | 227 | | | $ | 731 | | | $ | 651 | | | Dividends | 66 | | | 69 | | | 214 | | | 206 | | | Other | 11 | | | 4 | | | 31 | | | 16 | | | Total | 329 | | | 300 | | | 976 | | | 873 | | | Less investment expenses | 4 | | | 5 | | | 14 | | | 13 | | | Total | $ | 325 | | | $ | 295 | | | $ | 962 | | | $ | 860 | | | | | | | | | | | Investment gains and losses, net: | | | | | | | | | Equity securities: | | | | | | | | | Investment gains and losses on securities sold, net | $ | 5 | | | $ | (9) | | | $ | 255 | | | $ | (5) | | | Unrealized gains and losses on securities still held, net | 1 | | | 855 | | | 980 | | | 1,259 | | | Subtotal | 6 | | | 846 | | | 1,235 | | | 1,254 | | | Fixed-maturity securities: | | | | | | | | | Gross realized gains | — | | | 2 | | | 9 | | | 3 | | | Gross realized losses | (3) | | | (1) | | | (5) | | | (1) | | | Change in allowance for credit losses, net | (5) | | | — | | | (7) | | | (15) | | | | | | | | | | | Subtotal | (8) | | | 1 | | | (3) | | | (13) | | | | | | | | | | | Other | 22 | | | 6 | | | 26 | | | 18 | | | | | | | | | | | Total | $ | 20 | | | $ | 853 | | | $ | 1,258 | | | $ | 1,259 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
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