DAC, VOBA, DSI, and DFEL (Reconciliation of DAC, VOBA and DSI) (Details) - USD ($) $ in Millions	Mar. 31, 2023	Dec. 31, 2022
Changes in DAC [Roll Forward]
DAC, VOBA and DSI	$ 12,277	$ 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	475	479
Traditional Life [Member]
Changes in DAC [Roll Forward]
DAC, VOBA and DSI	1,400	1,383
UL and Other [Member]
Changes in DAC [Roll Forward]
DAC, VOBA and DSI	6,133	6,100
Retirement Plan Services [Member]
Changes in DAC [Roll Forward]
DAC, VOBA and DSI	257	253
Group Protection [Member]
Changes in DAC [Roll Forward]
DAC, VOBA and DSI	$ 142	$ 141