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Operations And Organization (Narrative) (Details)
1 Months Ended 12 Months Ended
Oct. 31, 2018
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Dec. 31, 2020
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Dec. 31, 2019
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Jul. 30, 2019
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Sunoco LP [Member]        
Number of common units of a subsidiary partnership that are held by a wholly-owned subsidiary of the Parent.   28,500,000    
USAC [Member]        
Number of common units of a subsidiary partnership that are held by a wholly-owned subsidiary of the Parent.     39,700,000 46,100,000
Sunoco LP [Member]        
Incentive Distribution Rights   100.00%    
USAC [Member]        
Limited Liability Company (LLC) or Limited Partnership (LP), Managing Member or General Partner, Ownership Interest   100.00%    
ET [Member]        
Limited Partner interest in the Partnership, percentage   99.90%    
ETE Merger [Member]        
Sale of Stock, Number of Shares Issued in Transaction 1,460,000,000      
Stockholders' Equity Note, Stock Split, Conversion Ratio 1.28      
ET Merger - Sunoco LP Exchange [Member] | ETO [Member] | ETO common units [Member]        
Sale of Stock, Number of Shares Issued in Transaction 42,812,389      
ET Merger - Sunoco LP Exchange [Member] | ET [Member] | Sunoco LP common units [Member]        
Sale of Stock, Number of Shares Issued in Transaction 2,263,158      
ET Merger - Sunoco LP Exchange [Member] | ET [Member] | ETO common units [Member]        
Sale of Stock, Number of Shares Issued in Transaction 2,874,275      
ET Merger - Sunoco LP Exchange [Member] | ET [Member] | Sunoco GP [Member]        
Limited Partner interest in the Partnership, percentage 100.00%      
ET Merger - USAC Exchange [Member] | ETO [Member] | ETO common units [Member]        
Sale of Stock, Number of Shares Issued in Transaction 16,134,903      
ET Merger - USAC Exchange [Member] | ET [Member] | USAC common Units [Member]        
Sale of Stock, Number of Shares Issued in Transaction 12,466,912      
ET Merger - Lake Charles Exchange [Member] | ETO [Member] | ETO common units [Member]        
Sale of Stock, Number of Shares Issued in Transaction 37,557,815      
ET Merger - Lake Charles Exchange [Member] | ET [Member] | Lake Charles LNG limited partner interest [Member]        
Limited Partner interest in the Partnership, percentage 100.00%      
ET Merger - Lake Charles Exchange [Member] | ET [Member] | Energy Transfer LNG Export LLC, ET Crude Oil Terminals LLC, & ETC Illinois LLC limited partner interest [Member]        
Limited Partner interest in the Partnership, percentage 60.00%      
IDRs [Member] | ETE Merger [Member]        
Sale of Stock, Number of Shares Issued in Transaction 1,168,205,710      
General Partner [Member] | ETE Merger [Member]        
Sale of Stock, Number of Shares Issued in Transaction 18,448,341