ASU 2018-12 Transition - Balance of Changes in VOBA, DAC, DSI and URL due to Adoption of ASU 2018-012 (Details) - USD ($) $ in Millions	Jun. 30, 2023	Dec. 31, 2022	Jun. 30, 2022	Dec. 31, 2021	Jan. 01, 2021	Dec. 31, 2020
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
VOBA	$ 1,529	$ 1,615	$ 1,704	$ 1,743
DAC	1,847	1,402	1,065	775
DSI	258	200	159	127
URL	313	271
Immediate Annuities
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
VOBA	195	201	206	212
Traditional Life
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
VOBA	71	73	76	25
FIA
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
VOBA	1,095	1,166	1,238	1,314
DAC	1,173	971	751	564
DSI	258	200	159	127
Fixed Rate Annuities
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
VOBA	29	32	36	39
DAC	233	83	59	38
Universal Life
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
VOBA	139	143	148	153
DAC	$ 441	$ 348	$ 255	$ 173
As Previously Reported
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
VOBA						$ 1,466
DAC						222
DSI						36
URL						2
As Previously Reported | Immediate Annuities
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
VOBA						86
As Previously Reported | Traditional Life
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
VOBA						18
As Previously Reported | FIA
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
VOBA						1,208
DAC						167
DSI						36
As Previously Reported | Fixed Rate Annuities
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
VOBA						15
DAC						14
As Previously Reported | Universal Life
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
VOBA						139
DAC						41
URL						2
Revision of Prior Period, Accounting Standards Update, Adjustment
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
VOBA						232
DAC						25
DSI						5
URL						25
Revision of Prior Period, Accounting Standards Update, Adjustment | Immediate Annuities
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
VOBA						0
Revision of Prior Period, Accounting Standards Update, Adjustment | Traditional Life
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
VOBA						(29)
Revision of Prior Period, Accounting Standards Update, Adjustment | FIA
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
VOBA						208
DAC						15
DSI						5
Revision of Prior Period, Accounting Standards Update, Adjustment | Fixed Rate Annuities
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
VOBA						24
DAC						2
Revision of Prior Period, Accounting Standards Update, Adjustment | Universal Life
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
VOBA						29
DAC						8
URL						25
Revision of Prior Period, Adjustment
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
VOBA						264
Revision of Prior Period, Adjustment | Immediate Annuities
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
VOBA						145
Revision of Prior Period, Adjustment | Traditional Life
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
VOBA						43
Revision of Prior Period, Adjustment | FIA
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
VOBA						69
Revision of Prior Period, Adjustment | Fixed Rate Annuities
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
VOBA						2
Revision of Prior Period, Adjustment | Universal Life
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
VOBA						5
Adjustments
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
VOBA						(22)
DAC						(2)
DSI						4
URL						2
Adjustments | Immediate Annuities
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
VOBA						(5)
Adjustments | Traditional Life
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
VOBA						(1)
Adjustments | FIA
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
VOBA						(14)
DAC						(1)
DSI						4
Adjustments | Fixed Rate Annuities
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
VOBA						7
DAC						0
Adjustments | Universal Life
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
VOBA						(9)
DAC						(1)
URL						2
As adjusted
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
VOBA					$ 1,940
DAC						245
DSI						45
URL						29
As adjusted | Immediate Annuities
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
VOBA					226
As adjusted | Traditional Life
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
VOBA					31
As adjusted | FIA
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
VOBA					1,471
DAC						181
DSI						45
As adjusted | Fixed Rate Annuities
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
VOBA					48
DAC						16
As adjusted | Universal Life
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
VOBA					$ 164
DAC						48
URL						$ 29