Derivative Instruments (Change In Our Unrealized Gain On Derivative Instruments In Accumulated OCI) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2012
Change in our unrealized gain on derivative instruments in accumulated OCI
Balance as of beginning-of-year	$ 1,563
Federal income tax expense (benefit)	483		387		282
Balance as of end-of-year	3,096		1,563
Parent Company [Member]
Change in our unrealized gain on derivative instruments in accumulated OCI
Balance as of beginning-of-year	1,563
Federal income tax expense (benefit)	(77)		(73)		(85)
Balance as of end-of-year	3,096		1,563
Unrealized Gain (Loss) on Derivative Instruments
Change in our unrealized gain on derivative instruments in accumulated OCI
Balance as of beginning-of-year	256		163		119
Unrealized holding gains (losses) arising during the year	(250)		143		55
Change in foreign currency exchange rate adjustment	50		(19)		(12)
Change in DAC, VOBA, DSI and DFEL	2		5		15
Income tax benefit (expense)	69		(45)		(21)
Reclassification adjustment for gains (losses) included in net income (loss)	(19)		(15)		(15)
Associated amortization of DAC, VOBA, DSI and DFEL	1		1		4
Federal income tax expense (benefit)	6		5
Income tax benefit (expense)	6		5		4
Balance as of end-of-year	139		256		163
Unrealized Gain (Loss) on Derivative Instruments | Cash flow hedges | Interest Rate Contract [Member]
Change in our unrealized gain on derivative instruments in accumulated OCI
Unrealized holding gains (losses) arising during the year	(290)		163		73
Unrealized Gain (Loss) on Derivative Instruments | Cash flow hedges | Interest Rate Contract [Member] | Net Investment Income [Member]
Change in our unrealized gain on derivative instruments in accumulated OCI
Reclassification adjustment for gains (losses) included in net income (loss)	(22)	[1]	(21)	[1]	(21)	[1]
Unrealized Gain (Loss) on Derivative Instruments | Cash flow hedges | Interest Rate Contract [Member] | Interest Expense [Member]
Change in our unrealized gain on derivative instruments in accumulated OCI
Reclassification adjustment for gains (losses) included in net income (loss)	(1)	[2]	(1)	[2]	(1)	[2]
Unrealized Gain (Loss) on Derivative Instruments | Cash flow hedges | Foreign Currency Contract [Member]
Change in our unrealized gain on derivative instruments in accumulated OCI
Unrealized holding gains (losses) arising during the year	36		(24)		(22)
Unrealized Gain (Loss) on Derivative Instruments | Cash flow hedges | Foreign Currency Contract [Member] | Net Investment Income [Member]
Change in our unrealized gain on derivative instruments in accumulated OCI
Reclassification adjustment for gains (losses) included in net income (loss)			3	[1]	3	[1]
Unrealized Gain (Loss) on Derivative Instruments | Fair value hedges | Interest Rate Contract [Member]
Change in our unrealized gain on derivative instruments in accumulated OCI
Unrealized holding gains (losses) arising during the year	4		4		4
Unrealized Gain (Loss) on Derivative Instruments | Fair value hedges | Interest Rate Contract [Member] | Interest Expense [Member]
Change in our unrealized gain on derivative instruments in accumulated OCI
Reclassification adjustment for gains (losses) included in net income (loss)	$ 4	[2]	$ 4	[2]	$ 4	[2]

[1] The OCI offset is reported within net investment income on our Consolidated Statements of Comprehensive Income (Loss).

[2] The OCI offset is reported within interest and debt expense on our Consolidated Statements of Comprehensive Income (Loss).