v3.25.4
Investments in debt and equity securities - Schedule of available-for-sale securities (Details) - USD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Schedule of Debt and Equity Securities    
Cost Basis $ 3,535 $ 4,114
Unrealized Pretax Net Gains (Losses) 14 (72)
Fair Value 3,549 4,042
U.S. treasury bonds    
Schedule of Debt and Equity Securities    
Cost Basis 10 10
Unrealized Pretax Net Gains (Losses) 0 0
Fair Value 10 10
Other U.S. and non-U.S. government bonds    
Schedule of Debt and Equity Securities    
Cost Basis 72 71
Unrealized Pretax Net Gains (Losses) 2 (3)
Fair Value 74 68
Corporate bonds and other debt securities    
Schedule of Debt and Equity Securities    
Cost Basis 2,457 3,199
Unrealized Pretax Net Gains (Losses) 23 (29)
Fair Value 2,480 3,170
Asset-backed securities    
Schedule of Debt and Equity Securities    
Cost Basis 273 220
Unrealized Pretax Net Gains (Losses) 0 (1)
Fair Value 273 219
U.S. governmental agency    
Schedule of Debt and Equity Securities    
Cost Basis 580 476
Unrealized Pretax Net Gains (Losses) (8) (33)
Fair Value 572 443
Residential    
Schedule of Debt and Equity Securities    
Cost Basis 2 2
Unrealized Pretax Net Gains (Losses) (1) 0
Fair Value 1 2
Commercial    
Schedule of Debt and Equity Securities    
Cost Basis 141 136
Unrealized Pretax Net Gains (Losses) (2) (6)
Fair Value $ 139 $ 130