v3.26.3
Investments - Fair Value and Gross Unrealized Losses of Available-for-Sale Securities (Details)
$ in Millions
Sep. 30, 2026
USD ($)
security
Dec. 31, 2025
USD ($)
security
Debt Securities, Available-for-sale, Unrealized Loss Position    
Fair Values, Less than 12 months $ 23,218 $ 9,421
Gross Unrealized Losses, Less than 12 months (1,174) (100)
Fair Value, 12 Months or longer 12,117 14,909
Gross Unrealized Losses, 12 months or longer (3,676) (2,951)
Total Fair Value 35,335 24,330
Total Gross Unrealized Losses $ (4,850) $ (3,051)
Total number of AFS securities in an unrealized loss position less than twelve months | security 5,372 1,904
Total number of AFS securities in an unrealized loss position twelve months or longer | security 1,927 2,090
Total number of AFS securities in an unrealized loss position | security 7,299 3,994
Asset-backed securities    
Debt Securities, Available-for-sale, Unrealized Loss Position    
Fair Values, Less than 12 months $ 5,179 $ 4,756
Gross Unrealized Losses, Less than 12 months (116) (30)
Fair Value, 12 Months or longer 1,949 2,160
Gross Unrealized Losses, 12 months or longer (259) (209)
Total Fair Value 7,128 6,916
Total Gross Unrealized Losses (375) (239)
Commercial mortgage-backed securities    
Debt Securities, Available-for-sale, Unrealized Loss Position    
Fair Values, Less than 12 months 1,615 541
Gross Unrealized Losses, Less than 12 months (43) (11)
Fair Value, 12 Months or longer 777 1,048
Gross Unrealized Losses, 12 months or longer (122) (106)
Total Fair Value 2,392 1,589
Total Gross Unrealized Losses (165) (117)
Corporates    
Debt Securities, Available-for-sale, Unrealized Loss Position    
Fair Values, Less than 12 months 13,095 3,291
Gross Unrealized Losses, Less than 12 months (871) (52)
Fair Value, 12 Months or longer 7,789 9,793
Gross Unrealized Losses, 12 months or longer (2,858) (2,304)
Total Fair Value 20,884 13,084
Total Gross Unrealized Losses (3,729) (2,356)
Hybrids    
Debt Securities, Available-for-sale, Unrealized Loss Position    
Fair Values, Less than 12 months 262 61
Gross Unrealized Losses, Less than 12 months (11) (1)
Fair Value, 12 Months or longer 263 372
Gross Unrealized Losses, 12 months or longer (29) (21)
Total Fair Value 525 433
Total Gross Unrealized Losses (40) (22)
Municipals    
Debt Securities, Available-for-sale, Unrealized Loss Position    
Fair Values, Less than 12 months 298 201
Gross Unrealized Losses, Less than 12 months (31) (3)
Fair Value, 12 Months or longer 895 1,012
Gross Unrealized Losses, 12 months or longer (278) (208)
Total Fair Value 1,193 1,213
Total Gross Unrealized Losses (309) (211)
Residential mortgage-backed securities    
Debt Securities, Available-for-sale, Unrealized Loss Position    
Fair Values, Less than 12 months 2,267 208
Gross Unrealized Losses, Less than 12 months (82) (2)
Fair Value, 12 Months or longer 323 389
Gross Unrealized Losses, 12 months or longer (80) (67)
Total Fair Value 2,590 597
Total Gross Unrealized Losses (162) (69)
U.S. Government    
Debt Securities, Available-for-sale, Unrealized Loss Position    
Fair Values, Less than 12 months 371 334
Gross Unrealized Losses, Less than 12 months (10) (1)
Fair Value, 12 Months or longer 10 11
Gross Unrealized Losses, 12 months or longer (1) (1)
Total Fair Value 381 345
Total Gross Unrealized Losses (11) (2)
Foreign Governments    
Debt Securities, Available-for-sale, Unrealized Loss Position    
Fair Values, Less than 12 months 131 29
Gross Unrealized Losses, Less than 12 months (10) 0
Fair Value, 12 Months or longer 111 124
Gross Unrealized Losses, 12 months or longer (49) (35)
Total Fair Value 242 153
Total Gross Unrealized Losses $ (59) $ (35)