Financing Agreements (Details) - Voya Financial, Inc. - Affiliated Entity - Reciprocal Loan Agreement - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Short-term Debt [Line Items]
Percentage of Statutory admitted assets that can be borrowed under Reciprocal Loan Agreement	3.00%		3.00%
Interest Expense	$ 0	$ 0	$ 100,000	$ 0
Interest income earned on reciprocal loan	$ 700,000	$ 200,000	$ 800,000	$ 400,000