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Organization and Description of the Business (Details)
$ in Millions
1 Months Ended
Apr. 02, 2018
USD ($)
shares
Oct. 31, 2018
Dec. 31, 2018
employee
USAC Management      
Organization      
Number of employees | employee     864
Subject to collective bargaining arrangements | USAC Management      
Organization      
Number of employees | employee     0
CDM      
Organization      
Aggregate consideration | $ $ 1,700.0    
Cash paid | $ 1,200.0    
General partner | ETP      
Organization      
General partner interest (as a percent)   100.00%  
Common units | ETE      
Organization      
Cash paid | $ $ 250.0    
Common units | ETP      
Organization      
Number of units transferred in exchange for consideration 12,466,912    
Common units | General partner | Equity Restructuring Agreement      
Organization      
Units issued 8,000,000    
Common units | Limited partner | CDM      
Organization      
Number of units issued in exchange for consideration 19,191,351    
Class B Units | Limited partner | CDM      
Organization      
Number of units issued in exchange for consideration 6,397,965