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Investments (Tables) | 9 Months Ended
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Sep. 30, 2025
Investments, Debt and Equity Securities [Abstract] |
Schedule of Net Investment Income | Net investment income is as follows:
| Three Months Ended | Nine Months Ended |  |
| September 30, | September 30, |  |
| 2025 |  | 2024 | 2025 |  | 2024 |  |
(In millions) |  |  |  |  |  |  |  |
Fixed maturity securities | $ | 540 |  |  | $ | 517 |  | $ | 1,597 |  |  | $ | 1,530 |  |  |
Limited partnership investments | 68 |  |  | 67 |  | 205 |  |  | 195 |  |  |
Short-term investments | 19 |  |  | 21 |  | 54 |  |  | 70 |  |  |
Equity securities (a) | 12 |  |  | 21 |  | 45 |  |  | 56 |  |  |
Income from trading portfolio (a) | 99 |  |  | 141 |  | 155 |  |  | 210 |  |  |
Other | 30 |  |  | 33 |  | 84 |  |  | 95 |  |  |
Total investment income | 768 |  |  | 800 |  | 2,140 |  |  | 2,156 |  |  |
Investment expenses | (25) |  |  | (24) |  | (75) |  |  | (72) |  |  |
Net investment income | $ | 743 |  |  | $ | 776 |  | $ | 2,065 |  |  | $ | 2,084 |  |  |
(a) Aggregate income (loss) recognized due to the change in fair value of equity and trading portfolio securities held as of September 30, 2025 and 2024 | $ | 72 |  |  | $ | 108 |  | $ | 42 |  |  | $ | 123 |  |  |
Schedule of Investment Gains (Losses) | Investment gains (losses) are as follows:
| Three Months Ended | Nine Months Ended |  |
| September 30, | September 30, |  |
| 2025 |  | 2024 | 2025 |  | 2024 |  |
(In millions) |  |  |  |  |  |  |  |
Fixed maturity securities: |  |  |  |  |  |  |  |
Gross gains | $ | 15 |  |  | $ | 11 |  | $ | 33 |  |  | $ | 38 |  |  |
Gross losses | (25) |  |  | (33) |  | (100) |  |  | (104) |  |  |
Investment losses on fixed maturity securities | (10) |  |  | (22) |  | (67) |  |  | (66) |  |  |
Equity securities (a) | 4 |  |  | 13 |  | 10 |  |  | 25 |  |  |
Short-term investments and other | (1) |  |  | (1) |  | (5) |  |  | (1) |  |  |
Investment losses | $ | (7) |  |  | $ | (10) |  | $ | (62) |  |  | $ | (42) |  |  |
(a) Investment gains (losses) recognized due to the change in fair value of non-redeemable preferred stock included within equity securities held as of September 30, 2025 and 2024 | $ | 4 |  |  | $ | 13 |  | $ | 8 |  |  | $ | 24 |  |  |
Schedule of Impairment Losses (Gains) on Earnings | The available-for-sale impairment losses (gains) recognized in earnings by asset type are presented in the following table. The table includes losses (gains) on securities with an intention to sell and changes in the allowance for credit losses on securities since acquisition date:
| Three Months Ended | Nine Months Ended |  |
| September 30, | September 30, |  |
| 2025 |  | 2024 | 2025 |  | 2024 |  |
(In millions) |  |  |  |  |  |  |  |
Fixed maturity securities available-for-sale: |  |  |  |  |  |  |  |
Corporate and other bonds | $ | 4 |  |  | $ | 8 |  | $ | 15 |  |  | $ | 23 |  |  |
Asset-backed | 2 |  |  | 4 |  | 7 |  |  | 9 |  |  |
Impairment losses recognized in earnings | $ | 6 |  |  | $ | 12 |  | $ | 22 |  |  | $ | 32 |  |  |
Schedule of Amortized Cost and Fair Values of Fixed Maturity Securities | The following tables present a summary of fixed maturity securities:
September 30, 2025 | Cost or Amortized Cost |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  | Allowance for Credit Losses |  | Estimated Fair Value
(In millions) |  |  |  |  |  |  |  |  |
Fixed maturity securities: |  |  |  |  |  |  |  |  |
Corporate and other bonds | $ | 25,592 |  |  | $ | 734 |  |  | $ | 844 |  |  | $ | 21 |  |  | $ | 25,461 |
States, municipalities and political subdivisions | 8,840 |  |  | 301 |  |  | 765 |  |  |  |  | 8,376 |
Asset-backed: |  |  |  |  |  |  |  |  |
Residential mortgage-backed | 4,041 |  |  | 42 |  |  | 382 |  |  |  |  | 3,701 |
Commercial mortgage-backed | 1,633 |  |  | 19 |  |  | 88 |  |  | 22 |  |  | 1,542 |
Other asset-backed | 3,790 |  |  | 28 |  |  | 190 |  |  | 18 |  |  | 3,610 |
Total asset-backed | 9,464 |  |  | 89 |  |  | 660 |  |  | 40 |  |  | 8,853 |
U.S. Treasury and obligations of government sponsored enterprises | 226 |  |  |  |  | 3 |  |  |  |  | 223 |
Foreign government | 736 |  |  | 10 |  |  | 23 |  |  |  |  | 723 |
Fixed maturities available-for-sale | $ | 44,858 |  |  | $ | 1,134 |  |  | $ | 2,295 |  |  | $ | 61 |  |  | $ | 43,636 |
Fixed maturities trading | 480 |  |  |  |  |  |  |  |  | 480 |
Total fixed maturity securities | $ | 45,338 |  |  | $ | 1,134 |  |  | $ | 2,295 |  |  | $ | 61 |  |  | $ | 44,116 |
December 31, 2024 |  |  |  |  |  |  |  |  |
Fixed maturity securities: |  |  |  |  |  |  |  |  |
Corporate and other bonds | $ | 25,839 |  |  | $ | 423 |  |  | $ | 1,305 |  |  | $ | 13 |  |  | $ | 24,944 |
States, municipalities and political subdivisions | 7,396 |  |  | 243 |  |  | 835 |  |  |  |  | 6,804 |
Asset-backed: |  |  |  |  |  |  |  |  |
Residential mortgage-backed | 3,725 |  |  | 7 |  |  | 488 |  |  |  |  | 3,244 |
Commercial mortgage-backed | 1,779 |  |  | 11 |  |  | 141 |  |  | 18 |  |  | 1,631 |
Other asset-backed | 3,770 |  |  | 24 |  |  | 239 |  |  | 14 |  |  | 3,541 |
Total asset-backed | 9,274 |  |  | 42 |  |  | 868 |  |  | 32 |  |  | 8,416 |
U.S. Treasury and obligations of government sponsored enterprises | 220 |  |  | 1 |  |  | 1 |  |  |  |  | 220 |
Foreign government | 701 |  |  | 6 |  |  | 30 |  |  |  |  | 677 |
Fixed maturities available-for-sale | $ | 43,430 |  |  | $ | 715 |  |  | $ | 3,039 |  |  | $ | 45 |  |  | $ | 41,061 |
Fixed maturities trading | 766 |  |  |  |  |  |  |  |  | 766 |
Total fixed maturity securities | $ | 44,196 |  |  | $ | 715 |  |  | $ | 3,039 |  |  | $ | 45 |  |  | $ | 41,827 |
Schedule of Available-for-sale Fixed Maturity Securities in Gross Unrealized Loss Position | The available-for-sale fixed maturity securities in a gross unrealized loss position for which an allowance for credit losses has not been recorded are as follows:
| Less than 12 Months |  | 12 Months or Longer |  | Total
September 30, 2025 | Estimated Fair Value |  | Gross Unrealized Losses |  | Estimated Fair Value |  | Gross Unrealized Losses |  | Estimated Fair Value |  | Gross Unrealized Losses
(In millions) |  |  |  |  |  |  |  |  |  |  |
Fixed maturity securities: |  |  |  |  |  |  |  |  |  |  |
Corporate and other bonds | $ | 2,802 |  |  | $ | 58 |  |  | $ | 8,578 |  |  | $ | 786 |  |  | $ | 11,380 |  |  | $ | 844 |
States, municipalities and political subdivisions | 701 |  |  | 33 |  |  | 3,162 |  |  | 732 |  |  | 3,863 |  |  | 765 |
Asset-backed: |  |  |  |  |  |  |  |  |  |  |
Residential mortgage-backed | 133 |  |  | 2 |  |  | 2,038 |  |  | 380 |  |  | 2,171 |  |  | 382 |
Commercial mortgage-backed | 27 |  |  |  |  | 923 |  |  | 88 |  |  | 950 |  |  | 88 |
Other asset-backed | 505 |  |  | 12 |  |  | 1,361 |  |  | 178 |  |  | 1,866 |  |  | 190 |
Total asset-backed | 665 |  |  | 14 |  |  | 4,322 |  |  | 646 |  |  | 4,987 |  |  | 660 |
U.S. Treasury and obligations of government-sponsored enterprises | 29 |  |  | 2 |  |  | 23 |  |  | 1 |  |  | 52 |  |  | 3 |
Foreign government | 108 |  |  | 2 |  |  | 301 |  |  | 21 |  |  | 409 |  |  | 23 |
Total fixed maturity securities | $ | 4,305 |  |  | $ | 109 |  |  | $ | 16,386 |  |  | $ | 2,186 |  |  | $ | 20,691 |  |  | $ | 2,295 |
December 31, 2024 |  |  |  |  |  |  |  |  |  |  |
Fixed maturity securities: |  |  |  |  |  |  |  |  |  |  |
Corporate and other bonds | $ | 5,846 |  |  | $ | 165 |  |  | $ | 10,388 |  |  | $ | 1,140 |  |  | $ | 16,234 |  |  | $ | 1,305 |
States, municipalities and political subdivisions | 1,247 |  |  | 52 |  |  | 2,967 |  |  | 783 |  |  | 4,214 |  |  | 835 |
Asset-backed: |  |  |  |  |  |  |  |  |  |  |
Residential mortgage-backed | 849 |  |  | 22 |  |  | 2,010 |  |  | 466 |  |  | 2,859 |  |  | 488 |
Commercial mortgage-backed | 180 |  |  | 2 |  |  | 988 |  |  | 139 |  |  | 1,168 |  |  | 141 |
Other asset-backed | 680 |  |  | 21 |  |  | 1,557 |  |  | 218 |  |  | 2,237 |  |  | 239 |
Total asset-backed | 1,709 |  |  | 45 |  |  | 4,555 |  |  | 823 |  |  | 6,264 |  |  | 868 |
U.S. Treasury and obligations of government-sponsored enterprises | 49 |  |  | 1 |  |  | 41 |  |  |  |  | 90 |  |  | 1 |
Foreign government | 118 |  |  | 3 |  |  | 368 |  |  | 27 |  |  | 486 |  |  | 30 |
Total fixed maturity securities | $ | 8,969 |  |  | $ | 266 |  |  | $ | 18,319 |  |  | $ | 2,773 |  |  | $ | 27,288 |  |  | $ | 3,039 |
The following table presents the estimated fair value and gross unrealized losses of available-for-sale fixed maturity securities in a gross unrealized loss position for which an allowance for credit loss has not been recorded, by ratings distribution.
| September 30, 2025 |  | December 31, 2024
| Estimated Fair Value |  | Gross Unrealized Losses |  | Estimated Fair Value |  | Gross Unrealized Losses
(In millions) |  |  |  |  |  |  |
U.S. Government, Government agencies and Government-sponsored enterprises | $ | 1,959 |  |  | $ | 281 |  |  | $ | 2,567 |  |  | $ | 373 |
AAA | 1,367 |  |  | 248 |  |  | 1,800 |  |  | 282 |
AA | 3,765 |  |  | 633 |  |  | 4,247 |  |  | 730 |
A | 5,049 |  |  | 436 |  |  | 6,330 |  |  | 582 |
BBB | 7,846 |  |  | 627 |  |  | 11,548 |  |  | 980 |
Non-investment grade | 705 |  |  | 70 |  |  | 796 |  |  | 92 |
Total | $ | 20,691 |  |  | $ | 2,295 |  |  | $ | 27,288 |  |  | $ | 3,039 |
Schedule of Allowance for Credit Losses | The following tables present the activity related to the allowance on available-for-sale securities with credit impairments and purchased credit-deteriorated (“PCD”) assets. Accrued interest receivable on available-for-sale fixed maturity securities totaled $469 million, $442 million and $451 million as of September 30, 2025, December 31, 2024 and September 30, 2024 and are excluded from the estimate of expected credit losses and the amortized cost basis in the tables within this Note.
Three months ended September 30, 2025 | Corporate and Other Bonds |  | Asset-backed |  | Total
(In millions) |  |  |  |  |
Allowance for credit losses: |  |  |  |  |
Balance as of July 1, 2025 | $ | 14 |  |  | $ | 37 |  |  | $ | 51 |
Additions to the allowance for credit losses: |  |  |  |  |
Securities for which credit losses were not previously recorded |  |  | 3 |  |  | 3 |
Available-for-sale securities accounted for as PCD assets | 4 |  |  |  |  | 4 |
Additional increases to the allowance for credit losses on securities that had an allowance recorded in a previous period | 3 |  |  |  |  | 3 |
Total allowance for credit losses | $ | 21 |  |  | $ | 40 |  |  | $ | 61 |
Three months ended September 30, 2024 | Corporate and Other Bonds |  | Asset-backed |  | Total
(In millions) |  |  |  |  |
Allowance for credit losses: |  |  |  |  |
Balance as of July 1, 2024 | $ | — |  |  | $ | 17 |  |  | $ | 17 |
Additions to the allowance for credit losses: |  |  |  |  |
Securities for which credit losses were not previously recorded | 4 |  |  |  |  | 4 |
Available-for-sale securities accounted for as PCD assets | 2 |  |  |  |  | 2 |
Reductions to the allowance for credit losses: |  |  |  |  |
Write-offs charged against the allowance |  |  | 9 |  |  | 9 |
Additional increases to the allowance for credit losses on securities that had an allowance recorded in a previous period |  |  | 4 |  |  | 4 |
Total allowance for credit losses | $ | 6 |  |  | $ | 12 |  |  | $ | 18 |
Nine months ended September 30, 2025 | Corporate and Other Bonds |  | Asset-backed |  | Total
(In millions) |  |  |  |  |
Allowance for credit losses: |  |  |  |  |
Balance as of January 1, 2025 | $ | 13 |  |  | $ | 32 |  |  | $ | 45 |
Additions to the allowance for credit losses: |  |  |  |  |
Securities for which credit losses were not previously recorded | 3 |  |  | 3 |  |  | 6 |
Available-for-sale securities accounted for as PCD assets | 4 |  |  |  |  | 4 |
Reductions to the allowance for credit losses: |  |  |  |  |
Securities disposed during the period (realized) | 6 |  |  |  |  | 6 |
Additional increases to the allowance for credit losses on securities that had an allowance recorded in a previous period | 7 |  |  | 5 |  |  | 12 |
Total allowance for credit losses | $ | 21 |  |  | $ | 40 |  |  | $ | 61 |
Nine months ended September 30, 2024 | Corporate and Other Bonds |  | Asset-backed |  | Total
(In millions) |  |  |  |  |
Allowance for credit losses: |  |  |  |  |
Balance as of January 1, 2024 | $ | 4 |  |  | $ | 12 |  |  | $ | 16 |
Additions to the allowance for credit losses: |  |  |  |  |
Securities for which credit losses were not previously recorded | 4 |  |  |  |  | 4 |
Available-for-sale securities accounted for as PCD assets | 2 |  |  |  |  | 2 |
Reductions to the allowance for credit losses: |  |  |  |  |
Securities disposed during the period (realized) | 3 |  |  | 1 |  |  | 4 |
Intent to sell or more likely than not will be required to sell the security before recovery of its amortized cost basis | 1 |  |  |  |  | 1 |
Write-offs charged against the allowance |  |  | 9 |  |  | 9 |
Additional increases to the allowance for credit losses on securities that had an allowance recorded in a previous period |  |  | 10 |  |  | 10 |
Total allowance for credit losses | $ | 6 |  |  | $ | 12 |  |  | $ | 18 |
Schedule of Available-for-sale Fixed Maturity Securities by Contractual Maturity | The following table presents available-for-sale fixed maturity securities by contractual maturity.
| September 30, 2025 |  | December 31, 2024
| Cost or Amortized Cost |  | Estimated Fair Value |  | Cost or Amortized Cost |  | Estimated Fair Value
(In millions) |  |  |  |  |  |  |
Due in one year or less | $ | 1,275 |  |  | $ | 1,267 |  |  | $ | 1,761 |  |  | $ | 1,753 |
Due after one year through five years | 11,741 |  |  | 11,578 |  |  | 11,678 |  |  | 11,403 |
Due after five years through ten years | 12,959 |  |  | 12,713 |  |  | 13,083 |  |  | 12,365 |
Due after ten years | 18,883 |  |  | 18,078 |  |  | 16,908 |  |  | 15,540 |
Total | $ | 44,858 |  |  | $ | 43,636 |  |  | $ | 43,430 |  |  | $ | 41,061 |
Schedule of Amortized Cost Basis of Mortgage Loans for Each Credit Quality Indicator by Year of Origination | The following table presents the amortized cost basis of mortgage loans for each credit quality indicator by year of origination. The primary credit quality indicators utilized are debt service coverage ratios (“DSCR”) and loan-to-value (“LTV”) ratios.
| Mortgage Loans Amortized Cost Basis by Origination Year (a)
As of September 30, 2025 | 2025 |  | 2024 |  | 2023 |  | 2022 |  | 2021 |  | Prior |  | Total
(In millions) |  |  |  |  |  |  |  |  |  |  |  |  |
DSCR ≥1.6x |  |  |  |  |  |  |  |  |  |  |  |  |
LTV less than 55% | $ | 18 |  |  |  |  | $ | 33 |  |  | $ | 6 |  |  | $ | 5 |  |  | $ | 210 |  |  | $ | 272 |
LTV 55% to 65% |  |  |  |  | 12 |  |  | 15 |  |  | 6 |  |  | 16 |  |  | 49 |
LTV greater than 65% |  |  |  |  |  |  | 30 |  |  | 12 |  |  |  |  | 42 |
DSCR 1.2x - 1.6x |  |  |  |  |  |  |  |  |  |  |  |  |
LTV less than 55% |  |  | $ | 68 |  |  | 28 |  |  | 5 |  |  | 2 |  |  | 93 |  |  | 196 |
LTV 55% to 65% | 55 |  |  | 33 |  |  | 38 |  |  | 21 |  |  | 19 |  |  | 28 |  |  | 194 |
LTV greater than 65% | 23 |  |  |  |  |  |  | 46 |  |  |  |  |  |  | 69 |
DSCR ≤1.2x |  |  |  |  |  |  |  |  |  |  |  |  |
LTV less than 55% |  |  |  |  | 6 |  |  | 34 |  |  |  |  | 21 |  |  | 61 |
LTV 55% to 65% | 37 |  |  |  |  | 17 |  |  | 39 |  |  |  |  | 15 |  |  | 108 |
LTV greater than 65% |  |  |  |  |  |  | 34 |  |  | 22 |  |  | 48 |  |  | 104 |
Total | $ | 133 |  |  | $ | 101 |  |  | $ | 134 |  |  | $ | 230 |  |  | $ | 66 |  |  | $ | 431 |  |  | $ | 1,095 |
(a) | The values in the table above reflect DSCR on a standardized amortization period and LTV ratios based on the most recent appraised values trended forward using changes in a commercial real estate price index.
Schedule of Aggregate Contractual or Notional Amounts and Estimated Fair Values Related to Derivative Financial Instruments | A summary of the aggregate contractual or notional amounts and gross estimated fair values related to derivative financial instruments follows. The contractual or notional amounts for derivatives are used to calculate the exchange of contractual payments under related agreements and may not be representative of the potential for gain or loss on these instruments. Gross estimated fair values of derivative positions are currently presented in Equity securities, Receivables and Payable to brokers on the Consolidated Condensed Balance Sheets.
| September 30, 2025 |  | December 31, 2024
| Contractual/Notional Amount |  | Estimated Fair Value |  | Contractual/Notional Amount |  | Estimated Fair Value
|  | Asset |  | (Liability) |  |  | Asset |  | (Liability)
(In millions) |  |  |  |  |  |  |  |  |  |  |
Without hedge designation: |  |  |  |  |  |  |  |  |  |  |
Equity markets: |  |  |  |  |  |  |  |  |  |  |
Options – purchased | $ | 95 |  |  | $ | 1 |  |  |  |  | $ | 268 |  |  | $ | 2 |  |  |
Futures – short | 1 |  |  |  |  |  |  | 167 |  |  | 1 |  |  |
Warrants | 1 |  |  | 1 |  |  |  |  | 1 |  |  | 1 |  |  |
Interest rate swaps | 474 |  |  |  |  |  |  | 300 |  |  | 4 |  |  |
Credit default swap index - purchased |  |  |  |  |  |  | 2,000 |  |  |  |  |

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