Fair Value of Financial Instruments (Fair Value Measured On A Recurring Basis Reconciliation) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended				9 Months Ended				3 Months Ended				9 Months Ended				3 Months Ended		9 Months Ended				3 Months Ended				9 Months Ended				3 Months Ended				9 Months Ended				3 Months Ended				9 Months Ended				3 Months Ended				9 Months Ended				3 Months Ended				9 Months Ended				3 Months Ended				9 Months Ended				3 Months Ended				9 Months Ended				3 Months Ended				9 Months Ended				3 Months Ended				9 Months Ended				3 Months Ended				9 Months Ended				3 Months Ended				9 Months Ended				3 Months Ended				9 Months Ended				3 Months Ended				9 Months Ended
	Sep. 30, 2013		Sep. 30, 2012		Sep. 30, 2013		Sep. 30, 2012		Sep. 30, 2013 Corporate Bonds [Member] Fixed Maturity AFS Securities [Member]		Sep. 30, 2012 Corporate Bonds [Member] Fixed Maturity AFS Securities [Member]		Sep. 30, 2013 Corporate Bonds [Member] Fixed Maturity AFS Securities [Member]		Sep. 30, 2012 Corporate Bonds [Member] Fixed Maturity AFS Securities [Member]		Sep. 30, 2012 Fixed maturity U.S. Government Bonds [Member] Fixed Maturity AFS Securities [Member]		Sep. 30, 2013 Fixed maturity U.S. Government Bonds [Member] Fixed Maturity AFS Securities [Member]		Sep. 30, 2012 Fixed maturity U.S. Government Bonds [Member] Fixed Maturity AFS Securities [Member]		Sep. 30, 2013 Foreign Government Bonds [Member] Fixed Maturity AFS Securities [Member]		Sep. 30, 2012 Foreign Government Bonds [Member] Fixed Maturity AFS Securities [Member]		Sep. 30, 2013 Foreign Government Bonds [Member] Fixed Maturity AFS Securities [Member]		Sep. 30, 2012 Foreign Government Bonds [Member] Fixed Maturity AFS Securities [Member]		Sep. 30, 2013 RMBS [Member] Fixed Maturity AFS Securities [Member]		Sep. 30, 2012 RMBS [Member] Fixed Maturity AFS Securities [Member]		Sep. 30, 2013 RMBS [Member] Fixed Maturity AFS Securities [Member]		Sep. 30, 2012 RMBS [Member] Fixed Maturity AFS Securities [Member]		Sep. 30, 2013 CMBS [Member] Fixed Maturity AFS Securities [Member]		Sep. 30, 2012 CMBS [Member] Fixed Maturity AFS Securities [Member]		Sep. 30, 2013 CMBS [Member] Fixed Maturity AFS Securities [Member]		Sep. 30, 2012 CMBS [Member] Fixed Maturity AFS Securities [Member]		Sep. 30, 2013 CDOs [Member] Fixed Maturity AFS Securities [Member]		Sep. 30, 2012 CDOs [Member] Fixed Maturity AFS Securities [Member]		Sep. 30, 2013 CDOs [Member] Fixed Maturity AFS Securities [Member]		Sep. 30, 2012 CDOs [Member] Fixed Maturity AFS Securities [Member]		Sep. 30, 2013 State And Municipal Bonds [Member] Fixed Maturity AFS Securities [Member]		Sep. 30, 2012 State And Municipal Bonds [Member] Fixed Maturity AFS Securities [Member]		Sep. 30, 2013 State And Municipal Bonds [Member] Fixed Maturity AFS Securities [Member]		Sep. 30, 2012 State And Municipal Bonds [Member] Fixed Maturity AFS Securities [Member]		Sep. 30, 2013 Hybrid And Redeemable Preferred Securities [Member] Fixed Maturity AFS Securities [Member]		Sep. 30, 2012 Hybrid And Redeemable Preferred Securities [Member] Fixed Maturity AFS Securities [Member]		Sep. 30, 2013 Hybrid And Redeemable Preferred Securities [Member] Fixed Maturity AFS Securities [Member]		Sep. 30, 2012 Hybrid And Redeemable Preferred Securities [Member] Fixed Maturity AFS Securities [Member]		Sep. 30, 2013 Equity AFS Securities [Member]		Sep. 30, 2012 Equity AFS Securities [Member]		Sep. 30, 2013 Equity AFS Securities [Member]		Sep. 30, 2012 Equity AFS Securities [Member]		Sep. 30, 2013 Trading Securities [Member]		Sep. 30, 2012 Trading Securities [Member]		Sep. 30, 2013 Trading Securities [Member]		Sep. 30, 2012 Trading Securities [Member]		Sep. 30, 2013 Derivative Investments [Member]		Sep. 30, 2012 Derivative Investments [Member]		Sep. 30, 2013 Derivative Investments [Member]		Sep. 30, 2012 Derivative Investments [Member]		Sep. 30, 2013 Indexed Annuity and Universal Life Contracts Embedded Derivatives [Member]		Sep. 30, 2012 Indexed Annuity and Universal Life Contracts Embedded Derivatives [Member]		Sep. 30, 2013 Indexed Annuity and Universal Life Contracts Embedded Derivatives [Member]		Sep. 30, 2012 Indexed Annuity and Universal Life Contracts Embedded Derivatives [Member]		Sep. 30, 2013 GLB Embedded Derivative Reserves [Member]		Sep. 30, 2012 GLB Embedded Derivative Reserves [Member]		Sep. 30, 2013 GLB Embedded Derivative Reserves [Member]		Sep. 30, 2012 GLB Embedded Derivative Reserves [Member]		Sep. 30, 2013 VIE's Liabilities - Derivative Instruments [Member]		Sep. 30, 2012 VIE's Liabilities - Derivative Instruments [Member]		Sep. 30, 2013 VIE's Liabilities - Derivative Instruments [Member]		Sep. 30, 2012 VIE's Liabilities - Derivative Instruments [Member]		Sep. 30, 2013 Credit Default Swaps [Member]		Sep. 30, 2012 Credit Default Swaps [Member]		Sep. 30, 2013 Credit Default Swaps [Member]		Dec. 31, 2011 Credit Default Swaps [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	$ 3,493		$ 2,360		$ 2,275		$ 2,051		$ 1,792	[1]	$ 1,678	[1]	$ 1,505	[1]	$ 1,888	[1]	$ 1	[1]	$ 1	[1]	$ 1	[1]	$ 75	[1]	$ 102	[1]	$ 46	[1]	$ 97	[1]	$ 1	[1]	$ 184	[1]	$ 3	[1]	$ 158	[1]	$ 28	[1]	$ 39	[1]	$ 27	[1]	$ 34	[1]	$ 143	[1]	$ 120	[1]	$ 154	[1]	$ 102	[1]	$ 30	[1]	$ 32	[1]	$ 32	[1]			$ 93	[1]	$ 129	[1]	$ 118	[1]	$ 100	[1]	$ 147	[1]	$ 85	[1]	$ 87	[1]	$ 56	[1]	$ 53	[1]	$ 72	[1]	$ 56	[1]	$ 68	[1]	$ 1,823	[1]	$ 2,517	[1]	$ 2,026	[1]	$ 2,470	[1]	$ (875)	[2]	$ (431)	[2]	$ (732)	[2]	$ (399)	[2]	$ 292	[2]	$ (1,926)	[2]	$ (909)	[2]	$ (2,217)	[2]	$ (101)	[3]	$ (231)	[3]	$ (128)	[3]	$ (291)	[3]	$ (8)	[4]	$ (11)	[4]	$ (11)	[4]	$ (16)	[4]
Items Included in Net Income	27		288		845		249		2	[1]	1	[1]	(1)	[1]	(16)	[1]		[1]				[1]										[1]					(3)	[1]	1	[1]	(2)	[1]	1	[1]	(9)	[1]			(2)	[1]	(1)	[1]	(2)	[1]															(1)	[1]	(1)	[1]			(1)	[1]							1	[1]	2	[1]	(368)	[1]	(268)	[1]	(616)	[1]	(557)	[1]	(63)	[2]	(63)	[2]	(225)	[2]	(143)	[2]	419	[2]	570	[2]	1,620	[2]	861	[2]	34	[3]	57	[3]	61	[3]	117	[3]	3	[4]	(5)	[4]	6	[4]
Gains (Losses) in OCI and Other	22	[5]	96	[5]	81	[5]	181	[5]	(2)	[1],[5]	24	[1],[5]	(12)	[1],[5]	14	[1],[5]		[1],[5]				[1],[5]	1	[1],[5]								[1],[5]					3	[1],[5]	(1)	[1],[5]	4	[1],[5]	4	[1],[5]	15	[1],[5]	1	[1],[5]	2	[1],[5]	2	[1],[5]	7	[1],[5]	(1)	[1],[5]	1	[1],[5]	(3)	[1],[5]	1	[1],[5]	2	[1],[5]	13	[1],[5]	2	[1],[5]	19	[1],[5]	1	[1],[5]	1	[1],[5]	3	[1],[5]	5	[1],[5]	(3)	[1],[5]	4	[1],[5]	(8)	[1],[5]	3	[1],[5]	24	[1],[5]	47	[1],[5]	93	[1],[5]	114	[1],[5]
Issuances, Sales, Maturities, Settlements, Calls, Net	(10)		(56)		14		409		14	[1]	225	[1]	(26)	[1]	327	[1]		[1]	(1)	[1]		[1]	20	[1]	(2)	[1]	50	[1]	(4)	[1]		[1]			(2)	[1]	(8)	[1]	(1)	[1]	(2)	[1]	(5)	[1]	(10)	[1]	29	[1]	27	[1]	18	[1]	34	[1]							32	[1]	(11)	[1]			(11)	[1]							58	[1]	25	[1]	(2)	[1]	(2)	[1]	(3)	[1]	(2)	[1]	(73)	[1]	(63)	[1]	(97)	[1]	206	[1]	14	[2]	(239)	[2]	33	[2]	(191)	[2]
Transfers In or Out of Level 3, Net	(145)	[6]	(317)	[6]	172	[6]	(519)	[6]	(126)	[1],[6]	(73)	[1],[6]	214	[1],[6]	(358)	[1],[6]		[1],[6]				[1],[6]			(24)	[1],[6]			(17)	[1],[6]		[1],[6]	(181)	[1],[6]			(147)	[1],[6]	(8)	[1],[6]	4	[1],[6]	(8)	[1],[6]	13	[1],[6]							6	[1],[6]									(18)	[1],[6]	(29)	[1],[6]	(43)	[1],[6]	(5)	[1],[6]									7	[1],[6]	(14)	[1],[6]	9	[1],[6]	(11)	[1],[6]
Ending Fair Value	$ 3,387		$ 2,371		$ 3,387		$ 2,371		$ 1,680	[1]	$ 1,855	[1]	$ 1,680	[1]	$ 1,855	[1]	$ 1	[1]			$ 1	[1]	$ 96	[1]	$ 76	[1]	$ 96	[1]	$ 76	[1]	$ 1	[1]	$ 3	[1]	$ 1	[1]	$ 3	[1]	$ 19	[1]	$ 43	[1]	$ 19	[1]	$ 43	[1]	$ 173	[1]	$ 147	[1]	$ 173	[1]	$ 147	[1]	$ 29	[1]	$ 33	[1]	$ 29	[1]	$ 33	[1]	$ 66	[1]	$ 113	[1]	$ 66	[1]	$ 113	[1]	$ 147	[1]	$ 86	[1]	$ 147	[1]	$ 86	[1]	$ 55	[1]	$ 60	[1]	$ 55	[1]	$ 60	[1]	$ 1,406	[1]	$ 2,233	[1]	$ 1,406	[1]	$ 2,233	[1]	$ (924)	[2]	$ (733)	[2]	$ (924)	[2]	$ (733)	[2]	$ 711	[2]	$ (1,356)	[2]	$ 711	[2]	$ (1,356)	[2]	$ (67)	[3]	$ (174)	[3]	$ (67)	[3]	$ (174)	[3]	$ (5)	[4]	$ (16)	[4]	$ (5)	[4]	$ (16)	[4]

[1] Amortization and accretion of premiums and discounts are included in net investment income on our Consolidated Statements of Comprehensive Income (Loss). Gains (losses) from sales, maturities, settlements and calls and OTTI are included in realized gain (loss) on our Consolidated Statements of Comprehensive Income (Loss).

[2] Gains (losses) from sales, maturities, settlements and calls are included in realized gain (loss) on our Consolidated Statements of Comprehensive Income (Loss).

[3] The changes in fair value of the credit default swaps and contingency forwards are included in realized gain (loss) on our Consolidated Statements of Comprehensive Income (Loss).

[4] Gains (losses) from sales, maturities, settlements and calls are included in net investment income on our Consolidated Statements of Comprehensive Income (Loss).

[5] The changes in fair value of the interest rate swaps are offset by an adjustment to derivative investments (see Note 6).

[6] Transfers in or out of Level 3 for AFS and trading securities are displayed at amortized cost as of the beginning-of-period. For AFS and trading securities, the difference between beginning-of-period amortized cost and beginning-of-period fair value was included in OCI and earnings, respectively, in prior periods.