| Document and Entity Information | Oct. 22, 2024 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Oct. 22, 2024 |
| Entity File Number | 001-41514 |
| Entity Registrant Name | RXO, INC. |
| Entity Central Index Key | 0001929561 |
| Entity Incorporation, State or Country Code | DE |
| Entity Tax Identification Number | 88-2183384 |
| Entity Address, Address Line One | 11215 North Community House Road |
| Entity Address, City or Town | Charlotte |
| Entity Address, State or Province | NC |
| Entity Address, Postal Zip Code | 28277 |
| City Area Code | 980 |
| Local Phone Number | 308-6058 |
| Title of 12(b) Security | Common stock, par value $0.01 per share |
| Trading Symbol | RXO |
| Security Exchange Name | NYSE |
| Entity Emerging Growth Company | false |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
