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Organization and Principles of Consolidation - Additional Information (Details)
$ in Billions
3 Months Ended 12 Months Ended
Aug. 21, 2015
Dec. 31, 2018
shares
Dec. 31, 2019
state
Apr. 02, 2018
stores
Jan. 23, 2018
USD ($)
stores
Jan. 18, 2017
stores
Organization Consolidation And Presentation Of Financial Statements [Line Items]            
Number of states in which entity operates | state     30      
Percentage of membership interest acquired 100.00%          
Number of stores | stores           97
Minimum [Member]            
Organization Consolidation And Presentation Of Financial Statements [Line Items]            
Number of states in which entity operates | state     30      
Sunoco LP [Member] | ETE & ETP Merger [Member]            
Organization Consolidation And Presentation Of Financial Statements [Line Items]            
Partners' Capital Account, Units, Contributed | shares   2,263,158        
ETP [Member] | ETE & ETP Merger [Member]            
Organization Consolidation And Presentation Of Financial Statements [Line Items]            
Partners' Capital Account, Units, Contributed | shares   2,874,275        
Partners' Capital Account, Units, Converted | shares   42,812,389        
Parent Company [Member]            
Organization Consolidation And Presentation Of Financial Statements [Line Items]            
Percentage of membership interest acquired     28.60%      
Parent Company [Member] | Common Units [Member]            
Organization Consolidation And Presentation Of Financial Statements [Line Items]            
Percentage of membership interest acquired     34.30%      
Discontinued Operations, Disposed of by Sale [Member] | 7-Eleven Transaction [Member]            
Organization Consolidation And Presentation Of Financial Statements [Line Items]            
Number of stores | stores         1,030  
Consideration received from divestiture | $         $ 3.2  
Commission Agent Revenue [Member]            
Organization Consolidation And Presentation Of Financial Statements [Line Items]            
Number of stores | stores       207