Investments and Derivative Instruments (Details Textual 3) (USD $)	3 Months Ended			6 Months Ended
	Jun. 30, 2014 securities		Jun. 30, 2013	Jun. 30, 2014 securities		Jun. 30, 2013	Dec. 31, 2013
Security Owned and Pledged as Collateral, Fair Value	$ 218,000,000			$ 218,000,000			$ 347,000,000
Recovery of previous counterparty losses	4,000,000
Derivative Asset, Fair Value, Gross Asset	1,095,000,000			1,095,000,000			1,948,000,000
Net realized capital gains (losses), excluding net OTTI losses recognized in earnings	3,000,000		32,000,000	(10,000,000)		123,000,000
Notional amount	94,451,000,000			94,451,000,000			159,441,000,000
Percent of fair value of securities transferred for collateral obtained on repurchase agreement				at least 95%
Gain (loss) on derivative, net	(107,000,000)		(111,000,000)
Carrying value of mortgage loans associated with the valuation allowance	142,000,000			142,000,000			191,000,000
Valuation allowance amount	206,000,000			206,000,000
Loss on Discontinuation of Cash Flow Hedge Due to Forecasted Transaction Probable of Not Occurring				0
Cash Collateral Received	238,000,000			238,000,000			180,000,000
Securities Received as Collateral	85,000,000			85,000,000			243,000,000
Fair Value of Securities Received as Collateral that Can be Resold or Repledged	57,000,000			57,000,000			191,000,000
Securities Received as Collateral, Amount Repledged and Sold				0		39,000,000
Additional Investments and Derivative Instruments (Textual) [Abstract]
Gross gains and losses on sales and impairments previously reported as unrealized losses in AOCI	0		78,000,000
Proceeds from sales of AFS securities	5,800,000,000		10,800,000,000
Number of securities included in AFS securities in an unrealized loss position, primarily related to municipal securities	2,201			2,201
Percentage of gross unrealized losses depressed	94.00%			94.00%
Securities Depressed to Cost or Amortized Cost Lower Limit	20.00%			20.00%
Number of years to maturity for securities concentrated in the financial services sector				10 years
Valuation allowances on mortgage loans held for sale							3,000,000
Mortgage loans held for sale, carrying value							61,000,000
Current weighted average loan to value ratio of commercial mortgage loan	58.00%			58.00%
Original weighted average loan to value ratio of commercial mortgage loan	63.00%			63.00%
Avg. Debt-Service Coverage Ratio	2.44			2.44
Deferred net gains on derivative instruments before tax to be reclassified to earnings during next twelve months				73,000,000
Maximum Term Over for Hedging Exposure to Variability of Future Cash Flows				2 years
Derivative fair value reported as liabilities	800,000,000			800,000,000			1,300,000,000
Policyholder Behavior Assumptions [Member]
Gain (loss) on derivative, net				0
International Program Hedging Instruments [Member]
Derivative Asset, Fair Value, Gross Asset	0			0			866,000,000
Notional amount	0			0			73,048,000,000
Retirement Plans and Individual Life Businesses [Member]
Net realized capital gains (losses), excluding net OTTI losses recognized in earnings						1,500,000,000
Gain (loss) on derivative instruments, net, pretax						71,000,000
Fixed Maturities [Member]
Security Owned and Pledged as Collateral, Fair Value	1,000,000,000			1,000,000,000			1,300,000,000
Other Investments [Member]
Derivative Asset, Fair Value, Gross Asset	1,014,000,000			1,014,000,000			1,845,000,000
Derivative Asset, Fair Value, Gross Liability	818,000,000			818,000,000			1,463,000,000
Derivative Assets	239,000,000	[1]		239,000,000	[1]		442,000,000	[1]
Derivative, Collateral, Obligation to Return Cash	43,000,000	[2]		43,000,000	[2]		(60,000,000)	[2]
Derivative Asset, Fair Value of Collateral	85,000,000	[3]		85,000,000	[3]		242,000,000	[3]
Derivative Asset, Fair Value, Amount Offset Against Collateral	111,000,000			111,000,000			140,000,000
Interest Rate Swap [Member]
Notional amount	$ 10,800,000,000			$ 10,800,000,000			$ 6,900,000,000

[1] cluded in other invested assets in the Company's Condensed Consolidated Balance Sheets.[

[2] cluded in other assets in the Company's Condensed Consolidated Balance Sheets and is limited to the net derivative receivable associated with each counterparty.[

[3] cludes collateral associated with exchange-traded derivative instruments.C