DAC, VOBA, DSI, and DFEL (Reconciliation of DFEL) (Details) - USD ($) $ in Millions	Mar. 31, 2023	Dec. 31, 2022	Mar. 31, 2022	Dec. 31, 2021
Changes in DAC [Roll Forward]
DFEL	$ 5,244	$ 5,045
UL and Other [Member]
Changes in DAC [Roll Forward]
DFEL	4,936	4,735	$ 4,735	$ 3,902
Variable Annuities [Member]
Changes in DAC [Roll Forward]
DFEL	$ 308	$ 310	$ 310	$ 318