DAC, VOBA, DSI, And DFEL (Reconciliation Of DAC, VOBA And DSI) (Details) - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022
Changes in DAC [Roll Forward]
DAC, VOBA and DSI	$ 12,341	$ 12,235
Variable Annuities [Member]
Changes in DAC [Roll Forward]
DAC, VOBA and DSI	3,871	3,879
Fixed Annuities [Member]
Changes in DAC [Roll Forward]
DAC, VOBA and DSI	454	479
Traditional Life [Member]
Changes in DAC [Roll Forward]
DAC, VOBA and DSI	1,417	1,383
UL and Other [Member]
Changes in DAC [Roll Forward]
DAC, VOBA and DSI	6,192	6,100
Group Protection [Member]
Changes in DAC [Roll Forward]
DAC, VOBA and DSI	147	141
Retirement Plan Services [Member]
Changes in DAC [Roll Forward]
DAC, VOBA and DSI	$ 260	$ 253