Federal Income Taxes (Significant Components Of Deferred Tax Assets and Liabilities) (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Deferred Tax Assets
Future contract benefits and other contract holder funds	$ 643	$ 649
Reinsurance related embedded derivative asset	69	1
Compensation and benefit plans	190	179
Intangibles	26	40
Net operating losses	216	264
Other	14	56
Total deferred tax assets	1,158	1,189
Deferred Tax Liabilities
DAC	813	1,339
VOBA	194	305
Net unrealized gain on fixed maturity AFS securities	2,308	338
Net unrealized gain on trading securities	72	27
Investment activity	109	332
Other	105	6
Total deferred tax liabilities	3,601	2,347
Net deferred tax asset (liability)	$ (2,443)	$ (1,158)