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	$ 527	$ 549
Reinsurance related embedded derivative liability	79
Compensation and benefit plans	135	120
Intangibles	26	40
Net operating losses	216	264
Other	14	59
Total deferred tax assets	997	1,032
Deferred Tax Liabilities
DAC	854	1,380
VOBA	191	302
Net unrealized gain on fixed maturity AFS securities	2,216	333
Net unrealized gain on trading securities	70	25
Investment activity	154	334
Reinsurance related embedded derivative asset		39
Deferred gain on business sold through reinsurance	4	34
Other	113	6
Total deferred tax liabilities	3,602	2,453
Net deferred tax asset (liability)	$ (2,605)	$ (1,421)