Other Expenses (Other Expenses) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Other Income and Expenses [Abstract]
Compensation	$ 73	$ 72
Contracted services and other labor costs	61	40
Transition services agreements	36	64
Establishment costs	40	38
Premium and other taxes, licenses and fees	11	6
Volume related costs, excluding compensation, net of DAC capitalization	122	151
Interest expense on debt	17	10
Other	50	53
Total other expenses	$ 410	$ 434