ASU 2018-12 Transition - Effect of Transition Adjustments on Equity (Details) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
	Dec. 31, 2020	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022	Dec. 31, 2021
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Contractholder funds		$ 45,070		$ 45,070		$ 40,843
MRB		195		195		165	$ 428
VOBA		1,529	$ 1,704	1,529	$ 1,704	1,615	1,743
DAC		1,847	1,065	1,847	1,065	1,402	$ 775
Income tax expense (benefit)		90	202	104	358
Adjustment to increase opening retained earnings		$ 6,229		$ 6,229		6,116
Adjustments
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Contractholder funds						$ (390)
MRB	$ 159
VOBA	(22)
DAC	(2)
Income tax expense (benefit)	20		$ 38		$ 39
Adjustments | Retained Earnings
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Contractholder funds	101
MRB	30
FPB	(14)
VOBA	(21)
DAC	(1)
Increase to Equity, gross of tax	95
Adjustment to increase opening retained earnings	75
Adjustments | Accumulated Other Comprehensive Earnings (Loss)
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Contractholder funds	115
MRB	(160)
FPB	(159)
VOBA	233
DAC	5
Increase to Equity, gross of tax	34
Income tax expense (benefit)	9
Adjustment to increase opening retained earnings	$ 25