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Equity Table - Quarterly Distributions of Available Cash (Details) - $ / shares
 3 Months Ended
Mar. 31, 2020
Dec. 31, 2019
Mar. 31, 2019
Dec. 31, 2018
Distribution Made to Limited Partner, Distributions Paid, Per Unit     $ 0.3050 $ 0.3050
USAC [Member]        
Distribution Made to Limited Partner, Distributions Paid, Per Unit $ 0.5250 $ 0.5250    
Sunoco LP [Member]        
Distribution Made to Limited Partner, Distributions Paid, Per Unit $ 0.8255 $ 0.8255    
Series A Preferred Units [Member]        
Distribution Made to Limited Partner, Distributions Paid, Per Unit [1]     0 31.25
Series B Preferred Units [Member]        
Distribution Made to Limited Partner, Distributions Paid, Per Unit [1]     0 33.125
Series C Preferred Units [Member]        
Distribution Made to Limited Partner, Distributions Paid, Per Unit     0.4609 0.4609
Series D Preferred Units [Member]        
Distribution Made to Limited Partner, Distributions Paid, Per Unit     0.4766 0.4766
Series E Preferred Units [Member]        
Distribution Made to Limited Partner, Distributions Paid, Per Unit     0.4750 0.4750
Series F Preferred Units [Member]        
Distribution Made to Limited Partner, Distributions Paid, Per Unit [2]     21.19 0
Series G Preferred Units [Member]        
Distribution Made to Limited Partner, Distributions Paid, Per Unit     $ 22.36 $ 0
[1] ETO Series A Preferred Unit and ETO Series B Preferred Unit distributions are paid on a semi-annual basis.  
[2] ETO Series F and G Preferred Unit distributions related to the period ended March 31, 2020 represent a prorated initial distribution. Distributions are paid on a semi-annual basis.