Business, Basis of Presentation and Significant Accounting Policies (Details)	6 Months Ended	0 Months Ended			0 Months Ended
	Jun. 30, 2014 segment	Oct. 29, 2013 ING U.S. Inc.	May 07, 2013 ING International	Oct. 29, 2013 ING International	Mar. 25, 2014 ING U.S. Inc.	May 07, 2013 ING U.S. Inc.
Schedule of Equity Transactions [Line Items]
Offering of shares by parent company and subsidiaries			44,201,773			30,769,230
Offering of shares by parent company and subsidiaries		37,950,000			30,475,000
Ownership by affiliate of parent company				57.00%
Shares acquired from parent in buyback					7,255,853
Ownership percentage by parent					43.00%
Number of operating segments	1