Shares And Stockholders' Equity (Schedule of Reclassifications Out Of AOCI) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Realized (gain) loss	$ (28)	$ 70	$ (105)	$ 28
Net investment income	1,180	1,146	3,543	3,509
Interest Expense, Debt	67	68	196	203
Commissions and other expenses	928	1,047	2,721	2,731
Income (loss) from continuing operations before taxes	442	418	1,165	1,168
Federal income tax expense (benefit)	105	18	272	203
Net income (loss)	337	428	893	992
Unrealized Gain (Loss) on Derivative Instruments [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Federal income tax expense (benefit)			(54)	(30)
Reclassification out of Accumulated Other Comprehensive Income [Member] | Unrealized Gain (Loss) On AFS Securities [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Income (loss) from continuing operations before taxes			(71)
Federal income tax expense (benefit)			25
Net income (loss)			(46)
Reclassification out of Accumulated Other Comprehensive Income [Member] | Unrealized OTTI On AFS Securities [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Income (loss) from continuing operations before taxes			45
Federal income tax expense (benefit)			(16)
Net income (loss)			29
Reclassification out of Accumulated Other Comprehensive Income [Member] | Unrealized Gain (Loss) on Derivative Instruments [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Income (loss) from continuing operations before taxes			(10)
Federal income tax expense (benefit)			4
Net income (loss)			(6)
Gross Reclassification [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] | Unrealized Gain (Loss) On AFS Securities [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Realized (gain) loss			(51)
Gross Reclassification [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] | Unrealized OTTI On AFS Securities [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Realized (gain) loss			51
Gross Reclassification [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] | Unrealized Gain (Loss) on Derivative Instruments [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Nonoperating income expense			(11)
Gross Reclassification [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] | Unrealized Gain (Loss) on Derivative Instruments [Member] | Interest Rate Contract [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net investment income			(18)
Interest Expense, Debt			3
Gross Reclassification [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] | Unrealized Gain (Loss) on Derivative Instruments [Member] | Foreign Currency Contract [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net investment income			4
Change In DAC, VOBA, DSI, And DFEL [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] | Unrealized Gain (Loss) On AFS Securities [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Realized (gain) loss			(20)
Change In DAC, VOBA, DSI, And DFEL [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] | Unrealized OTTI On AFS Securities [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Realized (gain) loss			(6)
Change In DAC, VOBA, DSI, And DFEL [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] | Unrealized Gain (Loss) on Derivative Instruments [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Commissions and other expenses			$ 1