| Cover | Oct. 14, 2024 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Oct. 14, 2024 |
| Entity File Number | 1-13219 |
| Entity Registrant Name | ONITY GROUP INC. |
| Entity Central Index Key | 0000873860 |
| Entity Tax Identification Number | 65-0039856 |
| Entity Incorporation, State or Country Code | FL |
| Entity Address, Address Line One | 1661 Worthington Road |
| Entity Address, Address Line Two | Suite 100 |
| Entity Address, City or Town | West Palm Beach |
| Entity Address, State or Province | FL |
| Entity Address, Postal Zip Code | 33409 |
| City Area Code | (561) |
| Local Phone Number | 682-8000 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Common Stock, $0.01 Par Value |
| Trading Symbol | ONIT |
| Security Exchange Name | NYSE |
| Entity Emerging Growth Company | false |
