Condensed Financial Information (Parent Company) (Condensed Balance Sheet - Insets) (Details) - USD ($) $ / shares in Units, $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Condensed Balance Sheet Statements, Captions [Line Items]
Amortized cost of fixed maturity securities	$ 300,555	$ 306,025
Preferred stock, par value	$ 0.01	$ 0.01
Preferred Stock, Liquidation Preference, Value	$ 3,905	$ 3,905
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	3,000,000,000	3,000,000,000
Common stock, shares issued	1,191,823,651	1,189,831,471
Common stock, shares outstanding	730,821,111	779,098,414
Treasury stock, shares	461,002,540	410,733,057
Parent Company
Condensed Balance Sheet Statements, Captions [Line Items]
Amortized cost of fixed maturity securities	$ 1,689	$ 3,877
Preferred stock, par value	$ 0.01	$ 0.01
Preferred Stock, Liquidation Preference, Value	$ 3,905	$ 3,905
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	3,000,000,000	3,000,000,000
Common stock, shares issued	1,191,823,651	1,189,831,471
Common stock, shares outstanding	730,821,111	779,098,414
Treasury stock, shares	461,002,540	410,733,057