v3.10.0.1
Document and Entity Information - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2018
Jun. 30, 2018
Document Information [Line Items]    
Entity Current Reporting Status Yes  
Document Type 10-K  
Amendment Flag false  
Document Period End Date Dec. 31, 2018  
Entity Registrant Name Energy Transfer Operating, L.P.  
Entity Well-known Seasoned Issuer Yes  
Entity Voluntary Filers No  
Entity Central Index Key 0001161154  
Current Fiscal Year End Date --12-31  
Entity Filer Category Large Accelerated Filer  
Entity Common Stock, Shares Outstanding 0  
Entity Public Float   $ 21,630
Entity Common Stock, Shares Outstanding 2018  
Document Fiscal Period Focus FY  
Entity Emerging Growth Company false  
Entity Small Business false  
Entity Shell Company false