Capital Contributions, Dividends and Statutory Information (Details) - USD ($) $ in Millions									12 Months Ended
	Dec. 27, 2016	Dec. 16, 2016	Sep. 29, 2016	Jun. 28, 2016	May 23, 2016	Mar. 31, 2016	Dec. 23, 2015	May 20, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 12, 2016
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%
Statutory net income (loss)									$ 266.2	$ 317.5	$ 321.7
Statutory capital and surplus									2,000.0	2,000.0
Voya Financial Partners, LLC (VFP)
Dividends Payable [Line Items]
Cash dividends paid to parent company		$ 25.0	$ 20.0	$ 20.0		$ 20.0	$ 115.0
Parent Company
Dividends Payable [Line Items]
Cash dividends paid to parent company	$ 4.0				$ 274.0		$ 90.0	$ 231.0	$ 278.0	$ 321.0
Dividends Receivable												$ 25.0