Condensed Financial Information (Parent Company) (Condensed Statements of Operations - Insets) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Condensed Income Statements, Captions [Line Items]
Liability for Future Policy Benefit, Remeasurement Gain (Loss)	$ (233)	$ 137	$ (51)
Parent Company
Condensed Income Statements, Captions [Line Items]
Liability for Future Policy Benefit, Remeasurement Gain (Loss)	$ (137)	$ 79	$ 47