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	$ 93	$ 80	$ 162	$ 162
Contracted services and other labor costs	78	65	146	112
Transition services agreements	15	65	53	132
Establishment costs	35	38	53	72
Premium and other taxes, licenses and fees	14	13	26	20
Separate account fees	108	122	225	242
Volume related costs, excluding compensation, net of DAC capitalization	162	153	290	317
Interest expense on debt	45	48	92	95
Other	27	37	47	61
Total other expenses	$ 577	$ 621	$ 1,094	$ 1,213