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Document and Entity Information - shares
3 Months Ended
Aug. 31, 2015
Sep. 16, 2015
Document and Entity Information [Abstract]    
Document Type 10-Q  
Document Period End Date Aug. 31, 2015  
Amendment Flag false  
Document Fiscal Year Focus 2016  
Document Fiscal Period Focus Q1  
Entity Registrant Name Federal Express Corporation  
Entity Central Index Key 0000230211  
Current Fiscal Year End Date --05-31  
Entity Well-known Seasoned Issuer No  
Entity Voluntary Filers No  
Entity Current Reporting Status Yes  
Entity Filer Category Non-accelerated Filer  
Entity Common Stock, Shares Outstanding   1,000