Other Revenues and Other Expenses (Other Expenses) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Other Income and Expenses [Abstract]
Compensation	$ 82	$ 73	$ 155	$ 146
Contracted services and other labor costs	69	56	130	96
Transition services agreements	15	63	51	127
Establishment costs	53	35	93	73
Premium and other taxes, licenses and fees	12	10	23	16
Volume related costs, excluding compensation, net of DAC capitalization	150	141	272	292
Interest expense on debt	17	16	34	26
Other	49	61	99	113
Total other expenses	$ 447	$ 455	$ 857	$ 889