Derivative Instruments (Change In Our Unrealized Gain On Derivative Instruments In Accumulated OCI) (Details) (USD $) In Millions, unless otherwise specified			6 Months Ended
	Jun. 30, 2013	Dec. 31, 2012	Jun. 30, 2013 Unrealized Gain (Loss) on Derivative Instruments [Member]	Jun. 30, 2012 Unrealized Gain (Loss) on Derivative Instruments [Member]	Jun. 30, 2013 Unrealized Gain (Loss) on Derivative Instruments [Member] Cash Flow Hedges [Member] Interest Rate Contract [Member]	Jun. 30, 2012 Unrealized Gain (Loss) on Derivative Instruments [Member] Cash Flow Hedges [Member] Interest Rate Contract [Member]	Jun. 30, 2013 Unrealized Gain (Loss) on Derivative Instruments [Member] Cash Flow Hedges [Member] Interest Rate Contract [Member] Net Investment Income [Member]		Jun. 30, 2012 Unrealized Gain (Loss) on Derivative Instruments [Member] Cash Flow Hedges [Member] Interest Rate Contract [Member] Net Investment Income [Member]		Jun. 30, 2013 Unrealized Gain (Loss) on Derivative Instruments [Member] Cash Flow Hedges [Member] Foreign Exchange Contract [Member]	Jun. 30, 2012 Unrealized Gain (Loss) on Derivative Instruments [Member] Cash Flow Hedges [Member] Foreign Exchange Contract [Member]	Jun. 30, 2013 Unrealized Gain (Loss) on Derivative Instruments [Member] Cash Flow Hedges [Member] Foreign Exchange Contract [Member] Net Investment Income [Member]		Jun. 30, 2012 Unrealized Gain (Loss) on Derivative Instruments [Member] Cash Flow Hedges [Member] Foreign Exchange Contract [Member] Net Investment Income [Member]		Jun. 30, 2013 Unrealized Gain (Loss) on Derivative Instruments [Member] Fair Value Hedges [Member] Interest Rate Contract [Member]	Jun. 30, 2012 Unrealized Gain (Loss) on Derivative Instruments [Member] Fair Value Hedges [Member] Interest Rate Contract [Member]	Jun. 30, 2013 Unrealized Gain (Loss) on Derivative Instruments [Member] Fair Value Hedges [Member] Interest Rate Contract [Member] Interest Expense [Member]		Jun. 30, 2012 Unrealized Gain (Loss) on Derivative Instruments [Member] Fair Value Hedges [Member] Interest Rate Contract [Member] Interest Expense [Member]
Change in our unrealized gain on derivative instruments in accumulated OCI
Balance as of beginning-of-year	$ 1,893	$ 3,808	$ 163	$ 119
Unrealized holding gains (losses) arising during the period			120	37	106	38					12	(3)					2	2
Change in foreign currency exchange rate adjustment			18	2
Change in DAC, VOBA, DSI and DFEL			4	4
Income tax benefit (expense)			(49)	(16)
Less: Reclassification adjustment for gains (losses) included in net income (loss)			(6)	(7)			(10)	[1]	(11)	[1]			2	[1]	2	[1]			2	[2]	2	[2]
Less: Associated amortization of DAC, VOBA, DSI and DFEL			1	1
Less: Income tax benefit (expense)			2	2
Balance as of end-of-period	$ 1,893	$ 3,808	$ 259	$ 150

[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).