XML 69 R57.htm IDEA: XBRL DOCUMENT v3.25.3
Investments - Schedule of Fair Value and Gross Unrealized Losses of Available-for-Sale Securities (Details)
$ in Millions
Sep. 30, 2025
USD ($)
security
Dec. 31, 2024
USD ($)
security
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]    
Fair Value, Less than 12 months $ 5,367 $ 10,420
Gross Unrealized Losses Less than 12 months (87) (290)
Fair Value, 12 months or longer 15,245 16,141
Gross Unrealized Losses, 12 months or longer (2,875) (3,485)
Total Fair Value 20,612 26,561
Total Gross Unrealized Losses $ (2,962) $ (3,775)
Total number of available-for-sale securities in an unrealized loss position less than twelve months | security 1,769 2,005
Total number of available-for-sale securities in an unrealized loss position twelve months or longer | security 2,172 2,305
Total number of available-for-sale securities in an unrealized loss position | security 3,941 4,310
Asset-backed securities    
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]    
Fair Value, Less than 12 months $ 1,738 $ 1,164
Gross Unrealized Losses Less than 12 months (27) (30)
Fair Value, 12 months or longer 2,238 2,637
Gross Unrealized Losses, 12 months or longer (208) (276)
Total Fair Value 3,976 3,801
Total Gross Unrealized Losses (235) (306)
Commercial mortgage-backed securities    
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]    
Fair Value, Less than 12 months 384 727
Gross Unrealized Losses Less than 12 months (9) (11)
Fair Value, 12 months or longer 1,184 1,513
Gross Unrealized Losses, 12 months or longer (126) (175)
Total Fair Value 1,568 2,240
Total Gross Unrealized Losses (135) (186)
Corporates    
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]    
Fair Value, Less than 12 months 2,590 6,831
Gross Unrealized Losses Less than 12 months (42) (208)
Fair Value, 12 months or longer 9,789 9,866
Gross Unrealized Losses, 12 months or longer (2,215) (2,624)
Total Fair Value 12,379 16,697
Total Gross Unrealized Losses (2,257) (2,832)
Hybrids    
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]    
Fair Value, Less than 12 months 71 105
Gross Unrealized Losses Less than 12 months (2) (4)
Fair Value, 12 months or longer 339 380
Gross Unrealized Losses, 12 months or longer (17) (25)
Total Fair Value 410 485
Total Gross Unrealized Losses (19) (29)
Municipals    
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]    
Fair Value, Less than 12 months 159 261
Gross Unrealized Losses Less than 12 months (4) (12)
Fair Value, 12 months or longer 1,055 1,006
Gross Unrealized Losses, 12 months or longer (207) (243)
Total Fair Value 1,214 1,267
Total Gross Unrealized Losses (211) (255)
Residential mortgage-backed securities    
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]    
Fair Value, Less than 12 months 169 899
Gross Unrealized Losses Less than 12 months (1) (16)
Fair Value, 12 months or longer 391 460
Gross Unrealized Losses, 12 months or longer (64) (89)
Total Fair Value 560 1,359
Total Gross Unrealized Losses (65) (105)
U.S. Government    
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]    
Fair Value, Less than 12 months 207 313
Gross Unrealized Losses Less than 12 months (1) (4)
Fair Value, 12 months or longer 93 122
Gross Unrealized Losses, 12 months or longer (2) (5)
Total Fair Value 300 435
Total Gross Unrealized Losses (3) (9)
Foreign Governments    
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]    
Fair Value, Less than 12 months 49 120
Gross Unrealized Losses Less than 12 months (1) (5)
Fair Value, 12 months or longer 156 157
Gross Unrealized Losses, 12 months or longer (36) (48)
Total Fair Value 205 277
Total Gross Unrealized Losses $ (37) $ (53)