Deferred Acquisition Costs and Deferred Sales Inducement Costs - Deferred Acquisition Costs (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Mar. 31, 2023	Dec. 31, 2022		Dec. 31, 2021
Balances of and changes in DAC
Beginning balance	$ 2,775	$ 2,839		$ 2,831
Capitalization of acquisition costs	38	178		255
Amortization	(61)	(242)		(247)
Ending balance	2,752	2,775		2,839
Other broker dealer acquisition costs	2	2		5
Balance including asset management acquisition costs	2,754	2,777	[1]	2,844
Variable Annuities
Balances of and changes in DAC
Beginning balance	1,598	1,696		1,732
Capitalization of acquisition costs	6	38		111
Amortization	(33)	(136)		(147)
Ending balance	1,571	1,598		1,696
Structured Variable Annuities
Balances of and changes in DAC
Beginning balance	149	91		26
Capitalization of acquisition costs	18	73		71
Amortization	(5)	(15)		(6)
Ending balance	162	149		91
Fixed Annuities
Balances of and changes in DAC
Beginning balance	45	53		61
Capitalization of acquisition costs	0	0		0
Amortization	(3)	(8)		(8)
Ending balance	42	45		53
Fixed Indexed Annuities
Balances of and changes in DAC
Beginning balance	6	7		8
Capitalization of acquisition costs	0	0		0
Amortization	0	(1)		(1)
Ending balance	6	6		7
Universal Life Insurance
Balances of and changes in DAC
Beginning balance	118	125		131
Capitalization of acquisition costs	0	1		3
Amortization	(2)	(8)		(9)
Ending balance	116	118		125
Variable Universal Life Insurance
Balances of and changes in DAC
Beginning balance	521	512		505
Capitalization of acquisition costs	11	55		54
Amortization	(12)	(46)		(47)
Ending balance	520	521		512
Indexed Universal Life Insurance
Balances of and changes in DAC
Beginning balance	236	248		257
Capitalization of acquisition costs	1	5		9
Amortization	(4)	(17)		(18)
Ending balance	233	236		248
Other Life Insurance
Balances of and changes in DAC
Beginning balance	3	3		3
Capitalization of acquisition costs	0	0		0
Amortization	0	0		0
Ending balance	3	3		3
Life Contingent Payout Annuities
Balances of and changes in DAC
Beginning balance	2	1		0
Capitalization of acquisition costs	1	1		1
Amortization	0	0		0
Ending balance	3	2		1
Term and Whole Life Insurance
Balances of and changes in DAC
Beginning balance	18	19		19
Capitalization of acquisition costs	0	1		2
Amortization	0	(2)		(2)
Ending balance	18	18		19
Disability Insurance
Balances of and changes in DAC
Beginning balance	79	84		89
Capitalization of acquisition costs	1	4		4
Amortization	(2)	(9)		(9)
Ending balance	$ 78	79		84
Previously Reported
Balances of and changes in DAC
Beginning balance				2,527
Balance including asset management acquisition costs		3,160		2,782
Previously Reported | Variable Annuities
Balances of and changes in DAC
Beginning balance				1,690
Previously Reported | Structured Variable Annuities
Balances of and changes in DAC
Beginning balance				22
Previously Reported | Fixed Annuities
Balances of and changes in DAC
Beginning balance				43
Previously Reported | Fixed Indexed Annuities
Balances of and changes in DAC
Beginning balance				7
Previously Reported | Universal Life Insurance
Balances of and changes in DAC
Beginning balance				100
Previously Reported | Variable Universal Life Insurance
Balances of and changes in DAC
Beginning balance				452
Previously Reported | Indexed Universal Life Insurance
Balances of and changes in DAC
Beginning balance				108
Previously Reported | Other Life Insurance
Balances of and changes in DAC
Beginning balance				(3)
Previously Reported | Life Contingent Payout Annuities
Balances of and changes in DAC
Beginning balance				0
Previously Reported | Term and Whole Life Insurance
Balances of and changes in DAC
Beginning balance				19
Previously Reported | Disability Insurance
Balances of and changes in DAC
Beginning balance				89
Adjustment
Balances of and changes in DAC
Beginning balance				304
Balance including asset management acquisition costs		$ (383)		62
Adjustment | Variable Annuities
Balances of and changes in DAC
Beginning balance				42
Adjustment | Structured Variable Annuities
Balances of and changes in DAC
Beginning balance				4
Adjustment | Fixed Annuities
Balances of and changes in DAC
Beginning balance				18
Adjustment | Fixed Indexed Annuities
Balances of and changes in DAC
Beginning balance				1
Adjustment | Universal Life Insurance
Balances of and changes in DAC
Beginning balance				31
Adjustment | Variable Universal Life Insurance
Balances of and changes in DAC
Beginning balance				53
Adjustment | Indexed Universal Life Insurance
Balances of and changes in DAC
Beginning balance				149
Adjustment | Other Life Insurance
Balances of and changes in DAC
Beginning balance				6
Adjustment | Life Contingent Payout Annuities
Balances of and changes in DAC
Beginning balance				0
Adjustment | Term and Whole Life Insurance
Balances of and changes in DAC
Beginning balance				0
Adjustment | Disability Insurance
Balances of and changes in DAC
Beginning balance				$ 0

[1] Certain prior period amounts have been restated. See Note 3 for more information.