Capital Contributions, Dividends and Statutory Information (Details) (USD $)	12 Months Ended			0 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Oct. 15, 2012 ING Financial Advisers, LLC	Dec. 22, 2011 ING Financial Advisers, LLC	Oct. 30, 2010 ING Financial Advisers, LLC	Dec. 21, 2012 Directed Services, LLC
Dividends Payable [Line Items]
Percentage threshold of dividends paid in previous twelve months to earned statutory surplus of prior year end, requiring approval of payment of dividends if exceeded	10.00%
Contribution of capital from parent	$ 0	$ 201,000,000	$ 0
Dividends paid and return of capital distribution	340,000,000	0	203,000,000
Dividends received from subsidiaries				90,000,000	65,000,000	60,000,000	15,000,000
Statutory net income (loss)	261,600,000	194,400,000	66,000,000
Statutory capital and surplus	$ 1,900,000,000	$ 1,900,000,000