Other Revenues and Other Expenses (Other Expenses) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Other Income and Expenses [Abstract]
Compensation	$ 103	$ 89
Contracted services and other labor costs	58	62
Transition services agreements	6	11
Premium and other taxes, licenses and fees	10	13
Volume related costs, excluding compensation, net of DAC capitalization	147	135
Interest expense on debt	17	18
Other	88	66
Total other expenses	$ 429	$ 394