Fair Value of Financial Instruments (Components Of The Transfers In And Out Of Level 3) (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
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net [Abstract]
Transfers In to Level 3	$ 40	$ 78	$ 1,749	$ 271
Transfers Out of Level 3	(285)	(223)	(2,160)	(99)
Transfers In or Out of Level 3, Net	(245)	(145)	(411)	172
Corporate Bonds [Member] | Fixed Maturity AFS Securities [Member]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net [Abstract]
Transfers In to Level 3	40	71	444	257
Transfers Out of Level 3	(280)	(197)	(424)	(43)
Transfers In or Out of Level 3, Net	(240)	(126)	20	214
Foreign Government Bonds [Member] | Fixed Maturity AFS Securities [Member]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net [Abstract]
Transfers In to Level 3			25
Transfers In or Out of Level 3, Net			25
CMBS [Member] | Fixed Maturity AFS Securities [Member]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net [Abstract]
Transfers In to Level 3			6
Transfers Out of Level 3		(8)		(8)
Transfers In or Out of Level 3, Net		(8)	6	(8)
CLOs [Member] | Fixed Maturity AFS Securities [Member]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net [Abstract]
Transfers In to Level 3			8
Transfers Out of Level 3			(4)
Transfers In or Out of Level 3, Net			4
State And Municipal Bonds [Member]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net [Abstract]
Transfers Out of Level 3			(29)
Transfers In or Out of Level 3, Net			(29)
Hybrid And Redeemable Preferred Securities [Member] | Fixed Maturity AFS Securities [Member]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net [Abstract]
Transfers In to Level 3			12	5
Transfers Out of Level 3		(18)	(22)	(48)
Transfers In or Out of Level 3, Net		(18)	(10)	(43)
Trading Securities [Member]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net [Abstract]
Transfers In to Level 3		7	10	9
Transfers Out of Level 3	(5)		(11)
Transfers In or Out of Level 3, Net	(5)	7	(1)	9
Derivative Investments [Member]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net [Abstract]
Transfers Out of Level 3			(426)
Transfers In or Out of Level 3, Net			(426)
GLB Embedded Derivative Reserves [Member] | Other Assets [Member]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net [Abstract]
Transfers In to Level 3			1,244
Transfers In or Out of Level 3, Net			1,244
GLB Embedded Derivative Reserves [Member] | Future contract benefits [Member]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net [Abstract]
Transfers Out of Level 3			(1,244)
Transfers In or Out of Level 3, Net			$ (1,244)