Fair Value of Financial Instruments (Fair Value Measured On A Recurring Basis Reconciliation) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended				6 Months Ended
	Jun. 30, 2014		Jun. 30, 2013		Jun. 30, 2014		Jun. 30, 2013
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	$ 3,257		$ 3,036		$ 3,730		$ 2,275
Items Included in Net Income	(159)		493		(571)		832
Gains (Losses) in OCI and Other	134	[1]	(2)	[1]	302	[1]	59	[1]
Issuances, Sales, Maturities, Settlements, Calls, Net	88		185		58		245
Transfers In or Out of Level 3, Net	33	[2],[3]	(206)	[2]	(166)	[2],[3]	95	[2]
Ending Fair Value	3,353		3,506		3,353		3,506
Corporate Bonds [Member] | Fixed Maturity AFS Securities [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	1,958	[4]	1,825	[4]	1,711	[4]	1,505	[4]
Items Included in Net Income	5	[4]	(5)	[4]	9	[4]	(1)	[4]
Gains (Losses) in OCI and Other	49	[1],[4]	(25)	[1],[4]	74	[1],[4]	(14)	[1],[4]
Issuances, Sales, Maturities, Settlements, Calls, Net	132	[4]	198	[4]	150	[4]	182	[4]
Transfers In or Out of Level 3, Net	60	[2],[3],[4]	(201)	[2],[4]	260	[2],[3],[4]	120	[2],[4]
Ending Fair Value	2,204	[4]	1,792	[4]	2,204	[4]	1,792	[4]
U.S. Government Bonds [Member] | Fixed Maturity AFS Securities [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value							1	[4]
Issuances, Sales, Maturities, Settlements, Calls, Net							(1)	[4]
Foreign Government Bonds [Member] | Fixed Maturity AFS Securities [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	107	[4]	76	[4]	79	[4]	46	[4]
Gains (Losses) in OCI and Other	1	[1],[4]	(1)	[1],[4]	4	[1],[4]	(1)	[1],[4]
Issuances, Sales, Maturities, Settlements, Calls, Net							30	[4]
Transfers In or Out of Level 3, Net					25	[2],[3],[4]
Ending Fair Value	108	[4]	75	[4]	108	[4]	75	[4]
RMBS [Member] | Fixed Maturity AFS Securities [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	1	[4]	1	[4]	1	[4]	3	[4]
Items Included in Net Income		[4]		[4]		[4]
Gains (Losses) in OCI and Other		[1],[4]		[1],[4]		[1],[4]
Issuances, Sales, Maturities, Settlements, Calls, Net		[4]		[4]		[4]	(2)	[4]
Transfers In or Out of Level 3, Net		[2],[3],[4]		[2],[4]		[2],[3],[4]
Ending Fair Value	1	[4]	1	[4]	1	[4]	1	[4]
CMBS [Member] | Fixed Maturity AFS Securities [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	21	[4]	27	[4]	20	[4]	27	[4]
Items Included in Net Income			1	[4]
Gains (Losses) in OCI and Other			3	[1],[4]	1	[1],[4]	5	[1],[4]
Issuances, Sales, Maturities, Settlements, Calls, Net	(2)	[4]	(3)	[4]	(8)	[4]	(4)	[4]
Transfers In or Out of Level 3, Net					6	[2],[3],[4]
Ending Fair Value	19	[4]	28	[4]	19	[4]	28	[4]
CLOs [Member] | Fixed Maturity AFS Securities [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	195	[4]	149	[4]	179	[4]	154	[4]
Items Included in Net Income							(1)	[4]
Gains (Losses) in OCI and Other	2	[1],[4]			3	[1],[4]	2	[1],[4]
Issuances, Sales, Maturities, Settlements, Calls, Net	17	[4]	(6)	[4]	24	[4]	(12)	[4]
Transfers In or Out of Level 3, Net	(4)	[2],[3],[4]			4	[2],[3],[4]
Ending Fair Value	210	[4]	143	[4]	210	[4]	143	[4]
State And Municipal Bonds [Member] | Fixed Maturity AFS Securities [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	29	[4]	32	[4]	28	[4]	32	[4]
Items Included in Net Income				[4]
Gains (Losses) in OCI and Other			(2)	[1],[4]	1	[1],[4]	(2)	[1],[4]
Issuances, Sales, Maturities, Settlements, Calls, Net				[4]
Transfers In or Out of Level 3, Net	(29)	[2],[3],[4]		[2],[4]	(29)	[2],[3],[4]
Ending Fair Value			30	[4]			30	[4]
Hybrid And Redeemable Preferred Securities [Member] | Fixed Maturity AFS Securities [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	55	[4]	102	[4]	66	[4]	118	[4]
Items Included in Net Income							(1)	[4]
Gains (Losses) in OCI and Other	2	[1],[4]	(3)	[1],[4]	1	[1],[4]	2	[1],[4]
Issuances, Sales, Maturities, Settlements, Calls, Net	(5)	[4]			(5)	[4]
Transfers In or Out of Level 3, Net			(6)	[2],[4]	(10)	[2],[3],[4]	(26)	[2],[4]
Ending Fair Value	52	[4]	93	[4]	52	[4]	93	[4]
Equity AFS Securities [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	162	[4]	110	[4]	161	[4]	87	[4]
Items Included in Net Income	3	[4]			3	[4]
Gains (Losses) in OCI and Other	(3)	[1],[4]			(1)	[1],[4]	2	[1],[4]
Issuances, Sales, Maturities, Settlements, Calls, Net	(4)	[4]	37	[4]	(5)	[4]	58	[4]
Ending Fair Value	158	[4]	147	[4]	158	[4]	147	[4]
Trading Securities [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	53	[4]	54	[4]	52	[4]	56	[4]
Items Included in Net Income	1	[4]	1	[4]	2	[4]	1	[4]
Gains (Losses) in OCI and Other	3	[1],[4]	(2)	[1],[4]	6	[1],[4]	(4)	[1],[4]
Issuances, Sales, Maturities, Settlements, Calls, Net	4	[4]	(1)	[4]	3	[4]	(1)	[4]
Transfers In or Out of Level 3, Net	6	[2],[3],[4]	1	[2],[4]	4	[2],[3],[4]	1	[2],[4]
Ending Fair Value	67	[4]	53	[4]	67	[4]	53	[4]
Derivative Investments [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	811	[4]	1,835	[4]	1,266	[4]	2,026	[4]
Items Included in Net Income	(42)	[4]	10	[4]	(150)	[4]	(248)	[4]
Gains (Losses) in OCI and Other	80	[1],[4]	28	[1],[4]	213	[1],[4]	69	[1],[4]
Issuances, Sales, Maturities, Settlements, Calls, Net	(69)	[4]	(50)	[4]	(123)	[4]	(24)	[4]
Transfers In or Out of Level 3, Net					(426)	[2],[3],[4]
Ending Fair Value	780	[4]	1,823	[4]	780	[4]	1,823	[4]
GLB Embedded Derivative Reserves [Member] | Other Assets [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	979	[5]
Items Included in Net Income	(47)	[5]			(312)	[5]
Transfers In or Out of Level 3, Net					1,244	[2],[3],[5]
Ending Fair Value	932	[5]			932	[5]
GLB Embedded Derivative Reserves [Member] | Future contract benefits [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value			(199)	[5]	1,244	[5]	(909)	[5]
Items Included in Net Income			491	[5]			1,201	[5]
Transfers In or Out of Level 3, Net					(1,244)	[2],[3],[5]
Ending Fair Value			292	[5]			292	[5]
GLB Embedded Derivative Reserves [Member] | Other Liabilities [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	(43)	[5]			(27)	[5]
Items Included in Net Income	(11)	[5]			(27)	[5]
Ending Fair Value	(54)	[5]			(54)	[5]
Reinsurance Recoverable [Member] | Other Assets [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	43	[5]			27	[5]
Items Included in Net Income	11	[5]			27	[5]
Ending Fair Value	54	[5]			54	[5]
Indexed Annuity and Universal Life Contracts Embedded Derivatives [Member] | Future contract benefits [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	(1,090)	[5]	(853)	[5]	(1,048)	[5]	(732)	[5]
Items Included in Net Income	(92)	[5]	(19)	[5]	(141)	[5]	(149)	[5]
Issuances, Sales, Maturities, Settlements, Calls, Net	15	[5]	10	[5]	22	[5]	19	[5]
Ending Fair Value	(1,167)	[5]	(862)	[5]	(1,167)	[5]	(862)	[5]
VIE's Liabilities - Derivative Instruments [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	(22)	[6]	(113)	[6]	(27)	[6]	(128)	[6]
Items Included in Net Income	12	[6]	12	[6]	17	[6]	27	[6]
Ending Fair Value	(10)	[6]	(101)	[6]	(10)	[6]	(101)	[6]
Credit Default Swaps [Member] | Other Liabilities [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	(2)	[7]	(10)	[7]	(2)	[7]	(11)	[7]
Items Included in Net Income	1	[7]	2	[7]	1	[7]	3	[7]
Gains (Losses) in OCI and Other		[1],[7]
Issuances, Sales, Maturities, Settlements, Calls, Net		[7]
Transfers In or Out of Level 3, Net		[2],[3],[7]
Ending Fair Value	$ (1)	[7]	$ (8)	[7]	$ (1)	[7]	$ (8)	[7]

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

[2] 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.

[3] Transfers in or out of Level 3 for GLB reserves embedded derivatives represent reclassifications between future contract benefits, other assets and other liabilities on our Consolidated Balance Sheets.

[4] 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).

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

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

[7] 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).