Basis of Presentation and Accounting Policies (Details 1) (USD $) In Millions, unless otherwise specified	3 Months Ended				6 Months Ended
	Jun. 30, 2014		Jun. 30, 2013		Jun. 30, 2014	Jun. 30, 2013
Reconciliation of the tax provision at the U.S. Federal statutory rate to the provision for income taxes
Tax expense (benefit) at U.S. Federal statutory rate	$ 53		$ 83		$ 266	$ 190
Tax-exempt interest	(34)		(35)		(69)	(69)
Dividends received deduction	(26)		(33)		(53)	(65)
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount	3		0		3	0
Other	4	[1]	(11)	[1]	(4)	11
Income tax benefit	$ 0		$ 4		$ 143	$ 67

[1] Includes a permanent difference of $25 related to non-deductible goodwill for the six months ended June 30, 2013.