Shares and Stockholders' Equity (Components And Changes In Accumulated OCI) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Components And Changes In Accumulated Other Comprehensive Income [Line Items]
Balance as of beginning-of-year	$ 3,808
Increases Attributable To
Gross OTTI recognized in OCI	(11)	(121)	(58)
Less:
Balance as of end-of-year	1,563	3,808
Parent Company [Member]
Less:
Balance as of end-of-year	1,563	3,808
Unrealized Gain (Loss) on AFS Securities
Components And Changes In Accumulated Other Comprehensive Income [Line Items]
Balance as of beginning-of-year	4,066	2,947	1,176
Unrealized holding gains (losses) arising during the year	(5,728)	2,691	3,414
Change in foreign currency exchange rate adjustment	19	14	(5)
Change in DAC, VOBA, DSI, future contract benefits and other contract holder funds	1,834	(1,233)	(797)
Income tax benefit (expense)	1,356	(480)	(932)
Less:
Reclassification adjustment for gains (losses) included in net income (loss)	(67)	(194)	(129)
Associated amortization of DAC, VOBA, DSI, and DFEL	(29)	(2)	(11)
Income tax benefit (expense)	34	69	49
Less:
Balance as of end-of-year	1,609	4,066	2,947
Unrealized OTTI on AFS Securities
Components And Changes In Accumulated Other Comprehensive Income [Line Items]
Balance as of beginning-of-year	(107)	(109)	(134)
Increases Attributable To
Gross OTTI recognized in OCI	(11)	(121)	(58)
Change in DAC, VOBA, DSI and DFEL	1	15	13
Income tax benefit (expense)	4	36	16
Decreases attributable to
Sales, maturities or other settlements of AFS securities	62	129	103
Change in DAC, VOBA, DSI, and DFEL	(8)	(18)	(20)
Income tax benefit (expense)	(19)	(39)	(29)
Less:
Balance as of end-of-year	(78)	(107)	(109)
Unrealized Gain (Loss) on Derivative Instruments
Components And Changes In Accumulated Other Comprehensive Income [Line Items]
Balance as of beginning-of-year	163	119	(11)
Change in foreign currency exchange rate adjustment	(19)	(12)	7
Decreases attributable to
Unrealized holding gains (losses) arising during the year	143	55	184
Change in DAC, VOBA, DSI and DFEL	5	15
Income tax benefit (expense)	(45)	(21)	(67)
Less:
Reclassification adjustment for gains (losses) included in net income (loss)	(15)	(15)	(10)
Associated amortization of DAC, VOBA, DSI and DFEL	1	4	1
Income tax benefit (expense)	5	4	3
Balance as of end-of-year	256	163	119
Foreign Currency Translation Adjustment AOCI Disclosure
Components And Changes In Accumulated Other Comprehensive Income [Line Items]
Balance as of beginning-of-year	(4)	1	1
Change in foreign currency exchange rate adjustment	(1)	(5)
Less:
Income tax benefit (expense)
Balance as of end-of-year	(5)	(4)	1
Funded Status of Employee Benefit Plans AOCI Disclosure
Components And Changes In Accumulated Other Comprehensive Income [Line Items]
Balance as of beginning-of-year	(310)	(278)	(181)
Less:
Adjustment arising during the period	140	2	(149)
Income tax benefit (expense)	(49)	(34)	52
Balance as of end-of-year	$ (219)	$ (310)	$ (278)