DAC, VOBA, DSI, and DFEL (Reconciliation of DAC, VOBA and DSI) (Details) - USD ($) $ in Millions	Jun. 30, 2023	Dec. 31, 2022
Changes in DAC [Roll Forward]
DAC, VOBA and DSI	$ 12,316	$ 12,235
Variable Annuities [Member]
Changes in DAC [Roll Forward]
DAC, VOBA and DSI	3,870	3,879
Fixed Annuities [Member]
Changes in DAC [Roll Forward]
DAC, VOBA and DSI	465	479
Traditional Life [Member]
Changes in DAC [Roll Forward]
DAC, VOBA and DSI	1,411	1,383
UL and Other [Member]
Changes in DAC [Roll Forward]
DAC, VOBA and DSI	6,169	6,100
Retirement Plan Services [Member]
Changes in DAC [Roll Forward]
DAC, VOBA and DSI	256	253
Group Protection [Member]
Changes in DAC [Roll Forward]
DAC, VOBA and DSI	$ 145	$ 141