Deferred Acquisition Costs and Deferred Sales Inducement Costs (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Sep. 30, 2022	Sep. 30, 2022	Sep. 30, 2021
Deferred Charges, Insurers [Abstract]
Increase (decrease) from surrenders	$ 49	$ 49
Increase (decrease) from updating morality assumptions	27	(27)
Increase (decrease) from updating discount rate	13	(13)
Balances of and changes in DAC
Beginning balance		2,782	$ 2,532
Capitalization of acquisition costs		151	205
Amortization		(363)	(137)
Amortization, impact of valuation assumptions review		8	60
Impact of change in net unrealized (gains) losses on securities		420	75
Ending balance	2,998	2,998	2,735
Balances of and changes in DSIC
Beginning balance		189	189
Capitalization of sales inducement costs		1	1
Amortization		(35)	(15)
Amortization, impact of valuation assumptions review		2	2
Impact of change in net unrealized (gains) losses on securities		15	11
Ending balance	$ 172	$ 172	$ 188

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