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
	Mar. 31, 2014	Mar. 31, 2013
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net [Abstract]
Transfers In to Level 3	$ 1,559	$ 163
Transfers Out of Level 3	(1,758)	(32)
Transfers In or Out of Level 3, Net	(199)	131
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	260	158
Transfers Out of Level 3	(60)	(6)
Transfers In or Out of Level 3, Net	200	152
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 In or Out of Level 3, Net	6
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 In or Out of Level 3, Net	8
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	(22)	(26)
Transfers In or Out of Level 3, Net	(10)	(21)
Trading securities [Member]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net [Abstract]
Transfers In to Level 3	4
Transfers Out of Level 3	(6)
Transfers In or Out of Level 3, Net	(2)
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)
Other assets GLB reserves embedded derivatives [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 reserves embedded derivatives [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)