v3.26.3
Investments - Available for Sale Securities in Continuous Unrealized Loss Position (Details)
$ in Millions
Sep. 30, 2026
USD ($)
security
Dec. 31, 2025
USD ($)
security
Fair Value    
Fair Value, Less than 12 Months $ 49,119 $ 10,186
Fair Value, 12 Months or More 10,805 12,868
Fair Value, Total 59,924 23,054
Gross Unrealized Losses    
Gross Unrealized Losses, Less than 12 Months 1,670 193
Gross Unrealized Losses, 12 Months or More 1,815 1,675
Gross Unrealized Losses, Total $ 3,485 $ 1,868
Number of securities in an unrealized loss position | security 17,099 7,526
Number of individual securities in continuous unrealized loss position for longer than twelve months | security 4,267 4,065
U.S. government and government sponsored entities    
Fair Value    
Fair Value, Less than 12 Months $ 3,198 $ 167
Fair Value, 12 Months or More 265 322
Fair Value, Total 3,463 489
Gross Unrealized Losses    
Gross Unrealized Losses, Less than 12 Months 35 8
Gross Unrealized Losses, 12 Months or More 102 78
Gross Unrealized Losses, Total 137 86
Obligations of states, municipalities and political subdivisions    
Fair Value    
Fair Value, Less than 12 Months 1,623 232
Fair Value, 12 Months or More 457 515
Fair Value, Total 2,080 747
Gross Unrealized Losses    
Gross Unrealized Losses, Less than 12 Months 60 8
Gross Unrealized Losses, 12 Months or More 64 45
Gross Unrealized Losses, Total 124 53
Non-U.S. governments    
Fair Value    
Fair Value, Less than 12 Months 3,366 1,524
Fair Value, 12 Months or More 1,449 1,347
Fair Value, Total 4,815 2,871
Gross Unrealized Losses    
Gross Unrealized Losses, Less than 12 Months 92 33
Gross Unrealized Losses, 12 Months or More 368 336
Gross Unrealized Losses, Total 460 369
Corporate debt    
Fair Value    
Fair Value, Less than 12 Months 25,344 6,031
Fair Value, 12 Months or More 7,116 8,165
Fair Value, Total 32,460 14,196
Gross Unrealized Losses    
Gross Unrealized Losses, Less than 12 Months 968 125
Gross Unrealized Losses, 12 Months or More 1,047 927
Gross Unrealized Losses, Total 2,015 1,052
RMBS    
Fair Value    
Fair Value, Less than 12 Months 8,793 769
Fair Value, 12 Months or More 947 1,764
Fair Value, Total 9,740 2,533
Gross Unrealized Losses    
Gross Unrealized Losses, Less than 12 Months 373 8
Gross Unrealized Losses, 12 Months or More 199 241
Gross Unrealized Losses, Total 572 249
CMBS    
Fair Value    
Fair Value, Less than 12 Months 3,404 580
Fair Value, 12 Months or More 337 523
Fair Value, Total 3,741 1,103
Gross Unrealized Losses    
Gross Unrealized Losses, Less than 12 Months 84 6
Gross Unrealized Losses, 12 Months or More 23 30
Gross Unrealized Losses, Total 107 36
CLO/ABS    
Fair Value    
Fair Value, Less than 12 Months 3,391 883
Fair Value, 12 Months or More 234 232
Fair Value, Total 3,625 1,115
Gross Unrealized Losses    
Gross Unrealized Losses, Less than 12 Months 58 5
Gross Unrealized Losses, 12 Months or More 12 18
Gross Unrealized Losses, Total $ 70 $ 23