| Document And Entity Information | Feb. 09, 2021 |
| Entity Information [Line Items] | |
| Document Type | 8-K |
| Document Period End Date | Feb. 9, 2021 |
| Entity Registrant Name | VOYA FINANCIAL, INC. |
| Entity Incorporation, State or Country Code | DE |
| Entity File Number | 001-35897 |
| 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 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | false |
| Entity Central Index Key | 0001535929 |
| 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 1/40th |
| Trading Symbol | VOYAPrB |
| Security Exchange Name | NYSE |
