Shares and Stockholder's Equity (Schedule of Reclassifications Out Of AOCI) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net investment income	$ 1,510	$ 1,111	$ 2,957	$ 2,430
Realized gain (loss)	(172)	(433)	39	(435)
Commissions and other expenses	(1,262)	(1,114)	(2,432)	(2,166)
Income (loss) from continuing operations before taxes	544	(226)	1,106	375
Income tax benefit (expense)	(82)	81	(180)	(17)
Net income (loss)	$ 462	$ (145)	926	358
Unrealized Gain (Loss) on AFS Securities [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Income (loss) from continuing operations before taxes			6	9
Income tax benefit (expense)			(1)	(2)
Net income (loss)			5	7
Unrealized Gain (Loss) on Derivative Instruments [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Income (loss) from continuing operations before taxes			1	24
Income tax benefit (expense)				(5)
Net income (loss)			1	19
Gross Reclassification [Member] | Unrealized Gain (Loss) on AFS Securities [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Realized gain (loss)			(3)	(41)
Gross Reclassification [Member] | Unrealized Gain (Loss) on Derivative Instruments [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total gross reclassifications			20	31
Gross Reclassification [Member] | Unrealized Gain (Loss) on Derivative Instruments [Member] | Interest Rate Contracts [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net investment income			1	1
Gross Reclassification [Member] | Unrealized Gain (Loss) on Derivative Instruments [Member] | Foreign Currency Contracts [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net investment income			21	22
Realized gain (loss)			(2)	8
Associated Amortization of DAC, VOBA, DSI and DFEL [Member] | Unrealized Gain (Loss) on AFS Securities [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Realized gain (loss)			9	50
Associated Amortization of DAC, VOBA, DSI and DFEL [Member] | Unrealized Gain (Loss) on Derivative Instruments [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Commissions and other expenses			$ (19)	$ (7)