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v3.25.3

Investments - Unrealized Loss Position (Details) $ in Millions | Sep. 30, 2025 USD ($) security | Dec. 31, 2024 USD ($) security
--- | --- | ---
Number of Securities |  |
Number of Securities, Less than 12 months | security | 1,110 | 4,502
Number of Securities, Greater than 12 months | security | 2,675 | 4,174
Number of Securities | security | 3,785 | 8,676
Fair Value |  |
Fair Value, Less than 12 months | $ 1,779 | $ 7,506
Fair Value, Greater than 12 months | 3,661 | 5,734
Fair Value | 5,440 | 13,240
Unrealized Losses |  |
Unrealized Losses, Less than 12 months | 25 | 127
Unrealized Losses, Greater than 12 months | 307 | 580
Unrealized Losses | $ 332 | $ 707
U.S. government securities |  |
Number of Securities |  |
Number of Securities, Less than 12 months | security | 42 | 266
Number of Securities, Greater than 12 months | security | 77 | 155
Number of Securities | security | 119 | 421
Fair Value |  |
Fair Value, Less than 12 months | $ 119 | $ 1,053
Fair Value, Greater than 12 months | 156 | 394
Fair Value | 275 | 1,447
Unrealized Losses |  |
Unrealized Losses, Less than 12 months | 2 | 18
Unrealized Losses, Greater than 12 months | 5 | 20
Unrealized Losses | $ 7 | $ 38
States, municipalities and political subdivisions |  |
Number of Securities |  |
Number of Securities, Less than 12 months | security | 23 | 100
Number of Securities, Greater than 12 months | security | 93 | 137
Number of Securities | security | 116 | 237
Fair Value |  |
Fair Value, Less than 12 months | $ 51 | $ 181
Fair Value, Greater than 12 months | 121 | 201
Fair Value | 172 | 382
Unrealized Losses |  |
Unrealized Losses, Less than 12 months | 1 | 3
Unrealized Losses, Greater than 12 months | 7 | 15
Unrealized Losses | $ 8 | $ 18
U.S. corporate securities |  |
Number of Securities |  |
Number of Securities, Less than 12 months | security | 690 | 3,119
Number of Securities, Greater than 12 months | security | 1,644 | 2,602
Number of Securities | security | 2,334 | 5,721
Fair Value |  |
Fair Value, Less than 12 months | $ 920 | $ 4,144
Fair Value, Greater than 12 months | 2,240 | 3,395
Fair Value | 3,160 | 7,539
Unrealized Losses |  |
Unrealized Losses, Less than 12 months | 17 | 64
Unrealized Losses, Greater than 12 months | 197 | 348
Unrealized Losses | $ 214 | $ 412
Foreign securities |  |
Number of Securities |  |
Number of Securities, Less than 12 months | security | 148 | 599
Number of Securities, Greater than 12 months | security | 356 | 616
Number of Securities | security | 504 | 1,215
Fair Value |  |
Fair Value, Less than 12 months | $ 238 | $ 810
Fair Value, Greater than 12 months | 520 | 874
Fair Value | 758 | 1,684
Unrealized Losses |  |
Unrealized Losses, Less than 12 months | 3 | 21
Unrealized Losses, Greater than 12 months | 33 | 90
Unrealized Losses | $ 36 | $ 111
Residential mortgage-backed securities |  |
Number of Securities |  |
Number of Securities, Less than 12 months | security | 28 | 89
Number of Securities, Greater than 12 months | security | 318 | 361
Number of Securities | security | 346 | 450
Fair Value |  |
Fair Value, Less than 12 months | $ 59 | $ 267
Fair Value, Greater than 12 months | 298 | 342
Fair Value | 357 | 609
Unrealized Losses |  |
Unrealized Losses, Less than 12 months | 0 | 5
Unrealized Losses, Greater than 12 months | 34 | 49
Unrealized Losses | $ 34 | $ 54
Commercial mortgage-backed securities |  |
Number of Securities |  |
Number of Securities, Less than 12 months | security | 33 | 186
Number of Securities, Greater than 12 months | security | 138 | 237
Number of Securities | security | 171 | 423
Fair Value |  |
Fair Value, Less than 12 months | $ 117 | $ 628
Fair Value, Greater than 12 months | 283 | 464
Fair Value | 400 | 1,092
Unrealized Losses |  |
Unrealized Losses, Less than 12 months | 1 | 11
Unrealized Losses, Greater than 12 months | 31 | 56
Unrealized Losses | $ 32 | $ 67
Other asset-backed securities |  |
Number of Securities |  |
Number of Securities, Less than 12 months | security | 146 | 139
Number of Securities, Greater than 12 months | security | 45 | 62
Number of Securities | security | 191 | 201
Fair Value |  |
Fair Value, Less than 12 months | $ 275 | $ 414
Fair Value, Greater than 12 months | 37 | 58
Fair Value | 312 | 472
Unrealized Losses |  |
Unrealized Losses, Less than 12 months | 1 | 5
Unrealized Losses, Greater than 12 months | 0 | 2
Unrealized Losses | $ 1 | $ 7
Redeemable preferred securities |  |
Number of Securities |  |
Number of Securities, Less than 12 months | security | 0 | 4
Number of Securities, Greater than 12 months | security | 4 | 4
Number of Securities | security | 4 | 8
Fair Value |  |
Fair Value, Less than 12 months | $ 0 | $ 9
Fair Value, Greater than 12 months | 6 | 6
Fair Value | 6 | 15
Unrealized Losses |  |
Unrealized Losses, Less than 12 months | 0 | 0
Unrealized Losses, Greater than 12 months | 0 | 0
Unrealized Losses | $ 0 | $ 0

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