v3.22.2.2
Cover - shares
 9 Months Ended
Sep. 30, 2022
Nov. 28, 2022
Cover [Abstract]    
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Sep. 30, 2022  
Document Transition Report false  
Entity File Number 001-41514  
Entity Registrant Name RXO, INC.  
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 Current Reporting Status No  
Entity Interactive Data Current Yes  
Entity Filer Category Non-accelerated Filer  
Entity Small Business false  
Entity Emerging Growth Company false  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   116,303,068
Entity Central Index Key 0001929561  
Current Fiscal Year End Date --12-31  
Document Fiscal Year Focus 2022  
Document Fiscal Period Focus Q3  
Amendment Flag false