Fair Value of Financial Instruments (Fair Value Measured On A Recurring Basis Reconciliation) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014		Mar. 31, 2013
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	$ 3,730		$ 2,275
Items Included in Net Income	(413)		337
Gains (Losses) in OCI and Other	168	[1]	61	[1]
Purchases, Issuances, Sales, Maturities, Settlements, Calls, Net	(29)		232
Transfers In or Out of Level 3, Net	(199)	[2],[3]	131	[2]
Ending Fair Value	3,257		3,036
Corporate bonds [Member] | Fixed Maturity AFS Securities [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	1,711	[4]	1,505	[4]
Items Included in Net Income	3	[4]
Gains (Losses) in OCI and Other	25	[1],[4]	12	[1],[4]
Purchases, Issuances, Sales, Maturities, Settlements, Calls, Net	19	[4]	156	[4]
Transfers In or Out of Level 3, Net	200	[2],[3],[4]	152	[2],[4]
Ending Fair Value	1,958	[4]	1,825	[4]
U.S. Government Bonds [Member] | Fixed Maturity AFS Securities [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value			1	[4]
Purchases, 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	79	[4]	46	[4]
Gains (Losses) in OCI and Other	3	[1],[4]
Purchases, Issuances, Sales, Maturities, Settlements, Calls, Net			30	[4]
Transfers In or Out of Level 3, Net	25	[2],[3],[4]
Ending Fair Value	107	[4]	76	[4]
RMBS [Member] | Fixed Maturity AFS Securities [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	1	[4]	3	[4]
Items Included in Net Income		[4]
Gains (Losses) in OCI and Other		[1],[4]
Purchases, Issuances, Sales, Maturities, Settlements, Calls, Net		[4]	(2)	[4]
Transfers In or Out of Level 3, Net		[2],[3],[4]
Ending Fair Value	1	[4]	1	[4]
CMBS [Member] | Fixed Maturity AFS Securities [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	20	[4]	27	[4]
Items Included in Net Income			(1)	[4]
Gains (Losses) in OCI and Other	1	[1],[4]	2	[1],[4]
Purchases, Issuances, Sales, Maturities, Settlements, Calls, Net	(6)	[4]	(1)	[4]
Transfers In or Out of Level 3, Net	6	[2],[3],[4]
Ending Fair Value	21	[4]	27	[4]
CLOs [Member] | Fixed Maturity AFS Securities [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	179	[4]	154	[4]
Items Included in Net Income			(1)	[4]
Gains (Losses) in OCI and Other	1	[1],[4]	2	[1],[4]
Purchases, Issuances, Sales, Maturities, Settlements, Calls, Net	7	[4]	(6)	[4]
Transfers In or Out of Level 3, Net	8	[2],[3],[4]
Ending Fair Value	195	[4]	149	[4]
State and municipal bonds [Member] | Fixed Maturity AFS Securities [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	28	[4]	32	[4]
Items Included in Net Income				[4]
Gains (Losses) in OCI and Other	1	[1],[4]		[1],[4]
Purchases, Issuances, Sales, Maturities, Settlements, Calls, Net				[4]
Transfers In or Out of Level 3, Net				[2],[4]
Ending Fair Value	29	[4]	32	[4]
Hybrid And redeemable preferred securities [Member] | Fixed Maturity AFS Securities [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	66	[4]	118	[4]
Gains (Losses) in OCI and Other	(1)	[1],[4]	5	[1],[4]
Transfers In or Out of Level 3, Net	(10)	[2],[3],[4]	(21)	[2],[4]
Ending Fair Value	55	[4]	102	[4]
Equity AFS and trading securities [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	161	[4]	87	[4]
Gains (Losses) in OCI and Other	1	[1],[4]	2	[1],[4]
Purchases, Issuances, Sales, Maturities, Settlements, Calls, Net			21	[4]
Ending Fair Value	162	[4]	110	[4]
Trading securities [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	52	[4]	56	[4]
Items Included in Net Income	1	[4]	1	[4]
Gains (Losses) in OCI and Other	3	[1],[4]	(2)	[1],[4]
Purchases, Issuances, Sales, Maturities, Settlements, Calls, Net	(1)	[4]	(1)	[4]
Transfers In or Out of Level 3, Net	(2)	[2],[3],[4]
Ending Fair Value	53	[4]	54	[4]
Derivative Investments [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	1,266	[4]	2,026	[4]
Items Included in Net Income	(108)	[4]	(258)	[4]
Gains (Losses) in OCI and Other	134	[1],[4]	40	[1],[4]
Purchases, Issuances, Sales, Maturities, Settlements, Calls, Net	(55)	[4]	27	[4]
Transfers In or Out of Level 3, Net	(426)	[2],[3],[4]
Ending Fair Value	811	[4]	1,835	[4]
Other assets GLB reserves embedded derivatives [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	27	[5]
Items Included in Net Income	(249)	[5]
Transfers In or Out of Level 3, Net	1,244	[2],[3],[5]
Ending Fair Value	1,022	[5]
Indexed annuity and universal life contracts embedded derivatives [Member] | Future contract benefits [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	(1,048)	[5]	(732)	[5]
Items Included in Net Income	(49)	[5]	(130)	[5]
Purchases, Issuances, Sales, Maturities, Settlements, Calls, Net	7	[5]	9	[5]
Ending Fair Value	(1,090)	[5]	(853)	[5]
GLB reserves embedded derivatives [Member] | Future contract benefits [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	1,244	[5]	(909)	[5]
Items Included in Net Income			710	[5]
Transfers In or Out of Level 3, Net	(1,244)	[2],[3],[5]
Ending Fair Value			(199)	[5]
VIE's liabilities - derivative instruments [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	(27)	[6]	(128)	[6]
Items Included in Net Income	5	[6]	15	[6]
Ending Fair Value	(22)	[6]	(113)	[6]
Credit default swaps [Member] | Other Liabilities [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	(2)	[7]	(11)	[7]
Items Included in Net Income		[7]	1	[7]
Gains (Losses) in OCI and Other		[1],[7]
Purchases, Issuances, Sales, Maturities, Settlements, Calls, Net		[7]
Transfers In or Out of Level 3, Net		[2],[3],[7]
Ending Fair Value	(2)	[7]	(10)	[7]
Other liabilities GLB reserves embedded derivatives [Member] | Other Liabilities [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	(27)	[5]
Items Included in Net Income	(16)	[5]
Ending Fair Value	$ (43)	[5]

[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).