Fair Value of Financial Instruments (Fair Value Measured On A Recurring Basis Reconciliation) (Details) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
		Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Level 3 Unobservable Input Reconciliation
Beginning Fair Value		$ 883	$ 2,209	$ 1,799	$ 2,547
Items Included in Net Income		(280)	719	(1,502)	272
Gains (Losses) in OCI and Other	[1]	124	(185)	234	(156)
Issuances, Sales, Maturities, Settlements, Calls, Net		171	47	228	28
Transfers In or Out of Level 3, Net	[2]	(509)	13	(370)	112
Ending Fair Value		389	2,803	389	2,803
Corporate bonds [Member] | Fixed maturity AFS securities [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	[3]	2,185	2,033	1,993	1,953
Items Included in Net Income	[3]	(6)			3
Gains (Losses) in OCI and Other	[1],[3]	46	(58)	64	(89)
Issuances, Sales, Maturities, Settlements, Calls, Net	[3]	118	61	146	90
Transfers In or Out of Level 3, Net	[2],[3]	82	3	222	82
Ending Fair Value	[3]	2,425	2,039	2,425	2,039
ABS [Member] | Fixed maturity AFS securities [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	[3]	44	33	45	33
Items Included in Net Income	[3]
Gains (Losses) in OCI and Other	[1],[3]			(1)
Issuances, Sales, Maturities, Settlements, Calls, Net	[3]	14		14
Transfers In or Out of Level 3, Net	[2],[3]	4		4
Ending Fair Value	[3]	62	33	62	33
U.S. government bonds [Member] | Fixed maturity AFS securities [Member]
Level 3 Unobservable Input Reconciliation
Issuances, Sales, Maturities, Settlements, Calls, Net	[3]	10		10
Ending Fair Value	[3]	10		10
Foreign government bonds [Member] | Fixed maturity AFS securities [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	[3]	111	113	111	109
Items Included in Net Income	[3]
Gains (Losses) in OCI and Other	[1],[3]	1	1	1	5
Issuances, Sales, Maturities, Settlements, Calls, Net	[3]
Transfers In or Out of Level 3, Net	[2],[3]
Ending Fair Value	[3]	112	114	112	114
RMBS [Member] | Fixed maturity AFS securities [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	[3]	1	1	1	1
Items Included in Net Income	[3]
Gains (Losses) in OCI and Other	[1],[3]
Issuances, Sales, Maturities, Settlements, Calls, Net	[3]	15		15
Transfers In or Out of Level 3, Net	[2],[3]
Ending Fair Value	[3]	16	1	16	1
CMBS [Member] | Fixed maturity AFS securities [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	[3]	9	15	10	15
Items Included in Net Income	[3]	2	1	2	2
Gains (Losses) in OCI and Other	[1],[3]	(1)	2	(1)	4
Issuances, Sales, Maturities, Settlements, Calls, Net	[3]	(2)	(6)	(3)	(9)
Transfers In or Out of Level 3, Net	[2],[3]
Ending Fair Value	[3]	8	12	8	12
CLOs [Member] | Fixed maturity AFS securities [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	[3]	591	416	551	368
Items Included in Net Income	[3]
Gains (Losses) in OCI and Other	[1],[3]			2	3
Issuances, Sales, Maturities, Settlements, Calls, Net	[3]	40	57	78	102
Transfers In or Out of Level 3, Net	[2],[3]	(586)	(12)	(586)	(12)
Ending Fair Value	[3]	45	461	45	461
Hybrid and redeemable preferred securities [Member] | Fixed maturity AFS securities [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	[3]	92	75	94	55
Items Included in Net Income	[3]		(1)		(1)
Gains (Losses) in OCI and Other	[1],[3]	(3)	(1)	(5)	(1)
Issuances, Sales, Maturities, Settlements, Calls, Net	[3]
Transfers In or Out of Level 3, Net	[2],[3]		23		43
Ending Fair Value	[3]	89	96	89	96
Equity AFS securities [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	[3]	167	135	164	157
Items Included in Net Income	[3]		1		1
Gains (Losses) in OCI and Other	[1],[3]	3	(2)	2
Issuances, Sales, Maturities, Settlements, Calls, Net	[3]		8	4	(16)
Transfers In or Out of Level 3, Net	[2],[3]		(1)		(1)
Ending Fair Value	[3]	170	141	170	141
Trading securities [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	[3]	74	75	73	73
Items Included in Net Income	[3]	1		2	1
Gains (Losses) in OCI and Other	[1],[3]	(1)	(4)	1	(2)
Issuances, Sales, Maturities, Settlements, Calls, Net	[3]		1	(1)
Transfers In or Out of Level 3, Net	[2],[3]	(9)		(10)
Ending Fair Value	[3]	65	72	65	72
Derivative investments [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	[3]	190	849	555	989
Items Included in Net Income	[3]	183	122	(258)	28
Gains (Losses) in OCI and Other	[1],[3]	79	(123)	171	(76)
Issuances, Sales, Maturities, Settlements, Calls, Net	[3]	(29)	(108)	(45)	(201)
Transfers In or Out of Level 3, Net	[2],[3]
Ending Fair Value	[3]	423	740	423	740
Other investments [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	[3],[4]	2
Items Included in Net Income	[3],[4]	(1)		1
Ending Fair Value	[3],[4]	1		1
Reinsurance recoverable [Member] | Other assets [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	[5]	433	204	268	154
Items Included in Net Income	[5]	106	(102)	271	(52)
Ending Fair Value	[5]	539	102	539	102
Indexed annuity and IUL contracts embedded derivatives [Member] | Future contract benefits [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	[5]	(1,088)	(1,180)	(1,100)	(1,170)
Items Included in Net Income	[5]	(19)	(9)	(12)	(47)
Gains (Losses) in OCI and Other	[1],[5]
Issuances, Sales, Maturities, Settlements, Calls, Net	[5]	5	34	10	62
Transfers In or Out of Level 3, Net	[2],[5]
Ending Fair Value	[5]	(1,102)	(1,155)	(1,102)	(1,155)
VIEs' liabilities - derivative instruments [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	[4]		(5)	(4)	(13)
Items Included in Net Income	[4]		2	4	10
Ending Fair Value	[4]		(3)		(3)
Credit default swaps [Member] | Other liabilities [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	[4]	(12)	(3)	(9)	(3)
Items Included in Net Income	[4]	(4)	1	(7)	1
Gains (Losses) in OCI and Other	[1],[4]
Issuances, Sales, Maturities, Settlements, Calls, Net	[4]
Transfers In or Out of Level 3, Net	[2],[4]
Ending Fair Value	[4]	(16)	(2)	(16)	(2)
GLB reserves embedded derivatives [Member] | Other assets [Member]
Level 3 Unobservable Input Reconciliation
Items Included in Net Income	[5]		254		254
Ending Fair Value	[5]		254		254
GLB reserves embedded derivatives [Member] | Other liabilities [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	[5]	(1,916)	(552)	(953)	(174)
Items Included in Net Income	[5]	(542)	450	(1,505)	72
Gains (Losses) in OCI and Other	[1],[5]
Issuances, Sales, Maturities, Settlements, Calls, Net	[5]
Transfers In or Out of Level 3, Net	[2],[5]
Ending Fair Value	[5]	$ (2,458)	$ (102)	$ (2,458)	$ (102)

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

[2] Transfers into 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 the prior period.

[3] 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).

[4] 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).

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