Deferred Policy Acquisition Costs and Present Value of Future Profits (Details Textual) (USD $) In Millions, unless otherwise specified	9 Months Ended
	Sep. 30, 2013
Retirement Plans [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Disposition of DAC Asset	$ (352)
Adjustments to Unrealized Gains and Losses on Securities Available for Sale and Other	(148)
Individual Life [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Disposition of DAC Asset	(2,374)
Adjustments to Unrealized Gains and Losses on Securities Available for Sale and Other	$ (349)