Income Taxes (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Components of the deferred income tax assets and liabilities
Unrecognized tax benefits	$ 0	$ 0	$ 0
Tax penalties or interest accrued	0	0
Deferred assets
Difference in tax bases of investments	31	44
Deferred reinsurance gain	20	23
Sale of subsidiary	0	173
Other assets	15	6
Total deferred assets	66	246
Deferred liabilities
Unrealized net capital gains	(747)	(501)
DAC	(396)	(470)
Deferred Tax Liabilities, Deferred Expense, Reserves and Accruals	(255)	(273)
Other liabilities	(75)	(94)
Total deferred liabilities	(1,473)	(1,338)
Net deferred liability before classification as held for sale	(1,407)	(1,092)
Deferred taxes classified as held for sale	0	(151)
Net deferred liability	(1,407)	(941)
Components of income tax expense
Current	101	71	(82)
Deferred	132	(52)	261
Total income tax expense	233	19	179
Income tax refunds received		11	58
Income taxes paid	80
Current income tax payable		5
Current income tax receivable	$ 7
Effective Income Tax Rate, Continuing Operations, Tax Rate Reconciliation
Statutory federal income tax rate - (benefit) expense	35.00%	(35.00%)	35.00%
Tax credits (as a percent)	(1.90%)	(181.80%)	(3.80%)
Dividends received deduction (as a percent)	(0.90%)	(46.10%)	(1.40%)
Adjustments to prior year tax liabilities (as a percent)	(0.20%)	(14.10%)	(0.30%)
Sale of subsidiary (as a percent)	(1.80%)	351.30%	0.00%
State income taxes (as a percent)	0.10%	15.30%	0.00%
Non-deductible expenses (as a percent)	0.20%	6.80%	0.10%
Other (as a percent)	0.20%	0.10%	0.00%
Effective income tax rate - expense (as a percent)	30.70%	96.50%	29.60%