Business and Basis of Presentation (Deferred Sales Inducements) (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Jan. 01, 2021
Movement in Deferred Sales Inducements [Roll Forward]
Balance, BOP	$ 480	$ 494	$ 907
Balance, EOP	443	480	494	$ 907
Other businesses
Movement in Deferred Sales Inducements [Roll Forward]
Balance, BOP	34	37	41
Balance, EOP	$ 33	$ 34	37	41
As Previously Reported
Movement in Deferred Sales Inducements [Roll Forward]
Balance, BOP				820
As Previously Reported \| Other businesses
Movement in Deferred Sales Inducements [Roll Forward]
Balance, BOP				39
Effect of Change
Movement in Deferred Sales Inducements [Roll Forward]
Balance, BOP			87
Balance, EOP				87
Effect of Change \| Other businesses
Movement in Deferred Sales Inducements [Roll Forward]
Balance, BOP			2
Balance, EOP				2
Individual Variable \| Retirement Strategies
Movement in Deferred Sales Inducements [Roll Forward]
Balance, BOP			866
Balance, EOP				866
Individual Variable \| As Previously Reported \| Retirement Strategies
Movement in Deferred Sales Inducements [Roll Forward]
Balance, BOP				781
Individual Variable \| Effect of Change \| Retirement Strategies
Movement in Deferred Sales Inducements [Roll Forward]
Balance, BOP			$ 85
Balance, EOP				$ 85