Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2019	Aug. 02, 2019
Entity Information [Line Items]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Jun. 30, 2019
Document Transition Report	false
Entity File Number	001-35897
Entity Registrant Name	Voya Financial, Inc.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	52-1222820
Entity Address, Address Line One	230 Park Avenue
Entity Address, City or Town	New York
Entity Address, State or Province	NY
Entity Address, Postal Zip Code	10169
City Area Code	212
Local Phone Number	309-8200
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		140,359,868
Entity Central Index Key	0001535929
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	Q2
Amendment Flag	false
Common Stock, $.01 par value
Entity Information [Line Items]
Title of 12(b) Security	Common Stock, $.01 par value
Trading Symbol	VOYA
Security Exchange Name	NYSE
Depositary Shares, each representing a 1/40th
Entity Information [Line Items]
Title of 12(b) Security	Depositary Shares, each representing a 1/40
Trading Symbol	VOYAPrB
Security Exchange Name	NYSE