Investments - Investments - Fixed Maturities, AFS, by Contractual Maturity Year (Details) - USD ($) $ in Millions	Sep. 30, 2022	Dec. 31, 2021
Amortized Cost
One year or less	$ 1,440	$ 1,400
Over one year through five years	8,116	8,615
Over five years through ten years	7,432	8,303
Over ten years	9,784	10,761
Subtotal	26,772	29,079
Mortgage-backed and asset-backed securities	12,815	11,709
Fixed maturities, available-for-sale, at fair value, amortized cost	39,587	40,788
Fair Value
One year or less	1,420	1,419
Over one year through five years	7,613	8,894
Over five years through ten years	6,472	8,633
Over ten years	8,399	11,979
Subtotal	23,904	30,925
Mortgage-backed and asset-backed securities	11,813	11,922
Fixed maturities, available-for-sale, at fair value (amortized cost of $54,478 and $53,805)	$ 35,717	$ 42,847