Investments - Available-for-Sale Securities by Contractual Maturities (Details) - USD ($) $ in Millions	Mar. 31, 2026	Dec. 31, 2025
Amortized Cost
Amortized Cost	$ 103,424	$ 101,462
Fair Value
Total fixed maturity AFS securities	94,200	$ 93,448
Fixed maturity AFS securities other than structured securities
Amortized Cost
Due in one year or less	5,047
Due after one year through five years	20,597
Due after five years through ten years	12,503
Due after ten years	42,377
Amortized Cost	80,524
Fair Value
Due in one year or less	4,995
Due after one year through five years	20,161
Due after five years through ten years	11,999
Due after ten years	34,610
Total fixed maturity AFS securities	71,765
Structured securities (RMBS, CMBS, ABS)
Amortized Cost
Amortized Cost	22,900
Fair Value
Total fixed maturity AFS securities	$ 22,435