Investments - Available-for-Sale Securities by Contractual Maturities (Details) - USD ($) $ in Millions	Jun. 30, 2024	Dec. 31, 2023
Amortized Cost
Total fixed maturity AFS securities	$ 88,371	$ 88,231
Fair Value
Total fixed maturity AFS securities	81,037	$ 82,300
Fixed maturity AFS securities other than structured securities
Amortized Cost
Due in one year or less	4,818
Due after one year through five years	17,915
Due after five years through ten years	14,005
Due after ten years	34,957
Total fixed maturity AFS securities	71,695
Fair Value
Due in one year or less	4,766
Due after one year through five years	17,243
Due after five years through ten years	12,954
Due after ten years	30,171
Total fixed maturity AFS securities	65,134
Structured securities (RMBS, CMBS, ABS)
Amortized Cost
Total fixed maturity AFS securities	16,676
Fair Value
Total fixed maturity AFS securities	$ 15,903