Separate Account Assets and Liabilities - Separate Account Liabilities (Details) - USD ($) $ in Millions	6 Months Ended		12 Months Ended
	Jun. 30, 2023		Dec. 31, 2022
Separate Account, Liability [Roll Forward]
Beginning balance	$ 73,962	[1]	$ 97,491
Premiums and deposits	742		1,744
Policy charges	(814)		(1,685)
Surrenders and other benefits	(3,181)		(6,757)
Investment return	5,987		(16,377)
Net transfer from (to) general account	29		133
Other charges	149		(587)
Ending balance	76,874		73,962	[1]
Cash surrender value	74,702		71,747
Variable Annuities
Separate Account, Liability [Roll Forward]
Beginning balance	63,223		82,862
Premiums and deposits	421		1,067
Policy charges	(665)		(1,396)
Surrenders and other benefits	(2,579)		(4,923)
Investment return	5,123		(14,450)
Net transfer from (to) general account	9		63
Other charges	0		0
Ending balance	65,532		63,223
Cash surrender value	63,850		61,461
Variable Universal Life
Separate Account, Liability [Roll Forward]
Beginning balance	7,653		9,376
Premiums and deposits	224		425
Policy charges	(145)		(278)
Surrenders and other benefits	(159)		(286)
Investment return	763		(1,654)
Net transfer from (to) general account	20		70
Other charges	0		0
Ending balance	8,356		7,653
Cash surrender value	7,866		7,200
Threadneedle Investment Liabilities
Separate Account, Liability [Roll Forward]
Beginning balance	3,086		5,253
Premiums and deposits	97		252
Policy charges	(4)		(11)
Surrenders and other benefits	(443)		(1,548)
Investment return	101		(273)
Net transfer from (to) general account	0		0
Other charges	149		(587)
Ending balance	2,986		3,086
Cash surrender value	$ 2,986		$ 3,086

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