v3.26.1
Investments - Gross Unrealized Loss by Length of Time (Details)
$ in Millions
Jun. 30, 2026
USD ($)
security
Dec. 31, 2025
USD ($)
security
Less than 12 months    
Fair Value $ 2,358 $ 489
Gross Unrealized Loss $ (48) $ (11)
Number of securities | security 725 167
12 months or more    
Fair Value $ 1,249 $ 1,827
Gross Unrealized Loss $ (175) $ (181)
Number of securities | security 646 855
Total    
Fair Value $ 3,607 $ 2,316
Gross Unrealized Loss $ (223) $ (192)
Number of securities | security 1,349 1,014
Obligations of state and political subdivisions    
Less than 12 months    
Fair Value $ 285 $ 79
Gross Unrealized Loss (3) (1)
12 months or more    
Fair Value 499 837
Gross Unrealized Loss (68) (70)
Total    
Fair Value 784 916
Gross Unrealized Loss (71) (71)
U.S. government and agencies    
Less than 12 months    
Fair Value 24 14
Gross Unrealized Loss 0 0
12 months or more    
Fair Value 5 5
Gross Unrealized Loss (5) (4)
Total    
Fair Value 29 19
Gross Unrealized Loss (5) (4)
Corporate securities    
Less than 12 months    
Fair Value 1,411 122
Gross Unrealized Loss (29) (1)
12 months or more    
Fair Value 558 732
Gross Unrealized Loss (87) (87)
Total    
Fair Value 1,969 854
Gross Unrealized Loss (116) (88)
RMBS    
Less than 12 months    
Fair Value 179 11
Gross Unrealized Loss (1) 0
12 months or more    
Fair Value 91 114
Gross Unrealized Loss (6) (6)
Total    
Fair Value 270 125
Gross Unrealized Loss (7) (6)
CMBS    
Less than 12 months    
Fair Value 146 41
Gross Unrealized Loss (2) 0
12 months or more    
Fair Value 48 57
Gross Unrealized Loss (1) (1)
Total    
Fair Value 194 98
Gross Unrealized Loss (3) (1)
CLOs    
Less than 12 months    
Fair Value 81 189
Gross Unrealized Loss (3) (9)
12 months or more    
Fair Value 20 44
Gross Unrealized Loss 0 (5)
Total    
Fair Value 101 233
Gross Unrealized Loss (3) (14)
Others    
Less than 12 months    
Fair Value 68 31
Gross Unrealized Loss (1) 0
12 months or more    
Fair Value 9 19
Gross Unrealized Loss 0 0
Total    
Fair Value 77 50
Gross Unrealized Loss (1) 0
Non-U.S. government securities    
Less than 12 months    
Fair Value 164 2
Gross Unrealized Loss (9) 0
12 months or more    
Fair Value 19 19
Gross Unrealized Loss (8) (8)
Total    
Fair Value 183 21
Gross Unrealized Loss $ (17) $ (8)