v3.26.1
COVER - USD ($)
12 Months Ended
May 31, 2026
Aug. 03, 2026
Nov. 30, 2025
Cover [Abstract]      
Document Type 10-K    
Document Annual Report true    
Current Fiscal Year End Date --05-31    
Document Period End Date May 31, 2026    
Document Transition Report false    
Entity File Number 001-43059    
Registrant Name FedEx Freight Holding Company, Inc.    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 39-3560171    
Entity Address, Address Line One 8285 Tournament Drive    
Entity Address, City or Town Memphis    
Entity Address, State or Province TN    
Entity Address, Postal Zip Code 38125    
City Area Code 901    
Local Phone Number 560-0784    
Title of 12(b) Security Common Stock, par value $0.10 per share    
Trading Symbol FDXF    
Security Exchange Name NYSE    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
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    
ICFR Auditor Attestation Flag false    
Document Financial Statement Error Correction [Flag] false    
Entity Shell Company false    
Entity Public Float     $ 0
Entity Common Stock, Shares Outstanding   149,518,133  
Documents Incorporated by Reference
None.
   
Amendment Flag false    
Entity Central Index Key 0002082247    
Document Fiscal Year Focus 2026    
Document Fiscal Period Focus FY