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, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total realized gain (loss)	$ 89	$ (28)	$ 106	$ (105)
Net investment income	1,212	1,180	3,627	3,543
Interest and debt expense	67	67	201	196
Commissions and other expenses	995	928	2,929	2,721
Income (loss) from continuing operations before taxes	601	442	1,564	1,165
Federal income tax expense (benefit)	162	105	398	272
Net income (loss)	439	337	1,166	893
Unrealized Gain (Loss) On AFS Securities [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Income (loss) from continuing operations before taxes			(15)	(71)
Federal income tax expense (benefit)			5	25
Net income (loss)			(10)	(46)
Unrealized OTTI On AFS Securities [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Income (loss) from continuing operations before taxes			28	45
Federal income tax expense (benefit)			(9)	(16)
Net income (loss)			19	29
Unrealized Gain (Loss) on Derivative Instruments [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Income (loss) from continuing operations before taxes			(11)	(10)
Federal income tax expense (benefit)			4	4
Net income (loss)			(7)	(6)
Gross Reclassification [Member] | Unrealized Gain (Loss) On AFS Securities [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total realized gain (loss)			10	(51)
Gross Reclassification [Member] | Unrealized OTTI On AFS Securities [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total realized gain (loss)			35	51
Gross Reclassification [Member] | Unrealized Gain (Loss) on Derivative Instruments [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Nonoperating income expense			(12)	(11)
Gross Reclassification [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			(19)	(18)
Interest and debt expense			3	3
Gross Reclassification [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	4
Change In DAC, VOBA, DSI, And DFEL [Member] | Unrealized Gain (Loss) On AFS Securities [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total realized gain (loss)			(25)	(20)
Change In DAC, VOBA, DSI, And DFEL [Member] | Unrealized OTTI On AFS Securities [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total realized gain (loss)			(7)	(6)
Change In 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			$ 1	$ 1