Guaranteed Benefit Features (Information On Guaranteed Death Benefit Features) (Details) (USD $) In Millions, unless otherwise specified	6 Months Ended		12 Months Ended
	Jun. 30, 2014		Dec. 31, 2013
Return of Net Deposits [Member]
Net Amount at Risk by Product and Guarantee [Line Items]
Total Account Value	$ 84,621	[1]	$ 79,391	[1]
Net Amount At Risk By Product and Guarantee Sep Acct Value	111	[1],[2]	141	[1],[2]
Average attained age of contract holders	61 years	[1]	61 years	[1]
Minimum Return [Member]
Net Amount at Risk by Product and Guarantee [Line Items]
Total Account Value	145	[1]	151	[1]
Net Amount At Risk By Product and Guarantee Sep Acct Value	25	[1],[2]	27	[1],[2]
Average attained age of contract holders	74 years	[1]	73 years	[1]
Guaranteed minimum return	5.00%	[1]	5.00%	[1]
Anniversary Contract Value [Member]
Net Amount at Risk by Product and Guarantee [Line Items]
Total Account Value	26,591	[1]	25,958	[1]
Net Amount At Risk By Product and Guarantee Sep Acct Value	$ 518	[1],[2]	$ 570	[1],[2]
Average attained age of contract holders	68 years	[1]	68 years	[1]

[1] Our variable contracts with guarantees may offer more than one type of guarantee in each contract; therefore, the amounts listed are not mutually exclusive.

[2] Represents the amount of death benefit in excess of the account balance.  The decrease in net amount at risk when comparing June 30, 2014, to December 31, 2013, was attributable primarily to the increase in the equity markets during the first six months of 2014.