Deferred Acquisition Costs and Deferred Sales Inducement Costs (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Deferred Charges, Insurers [Abstract]
Increase (decrease) from surrenders	$ 49
Increase (decrease) from updating morality assumptions	(27)
Increase (decrease) from updating discount rate	(13)
Balances of and changes in DAC
Beginning balance	2,782	$ 2,532	$ 2,698
Capitalization of acquisition costs	197	280	228
Amortization	(216)	(184)	(177)
Amortization, impact of valuation assumptions review	8	60	(100)
Impact of change in net unrealized (gains) losses on securities	389	94	(117)
Ending balance	3,160	2,782	2,532
Balances of and changes in DSIC
Beginning balance	189	189	218
Capitalization of sales inducement costs	1	1	1
Amortization	(24)	(16)	(13)
Amortization, impact of valuation assumptions review	2	2	(16)
Impact of change in net unrealized (gains) losses on securities	15	13	(1)
Ending balance	$ 183	$ 189	$ 189

Deferred Policy Acquisition Cost, Amortization Expense, Assumption Change From Lower Surrenders

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