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Income Tax (Narrative) (Details) - USD ($)
$ in Millions
 3 Months Ended 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Provision for income tax expense (benefit)     $ 560 $ 1,062 $ 1,642
Operating Expenses     12,710 11,859 $ 12,018
Deferred Tax Liabilities, Investments $ 1,691   2,054 $ 1,691  
Foreign Tax Authority          
Deferred Tax Liabilities, Investments     $ 223    
Settlement with Taxing Authority          
Provision for income tax expense (benefit)   $ (53)      
Settlement with Taxing Authority | American Life Insurance Company [Member]          
Tax Adjustments, Settlements, and Unusual Provisions (70) (42)      
Provision for income tax expense (benefit) (67) (34)      
Operating Expenses 4 10      
Operating Expenses Net $ 3 $ 8