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Equity (Change In ETE Common Units) (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2017
Stock Issued During Period, Shares, New Issues 12,800,000 14,500,000 2,300,000      
Outstanding 2,702,372,154 2,689,580,631 2,619,400,000 2,702,372,154 2,689,580,631 1,079,100,000
Issuance of restricted Common Units under long-term incentive plans 0 (57,600,000) (1,458,900,000)      
Partners' Capital Account, Units, Treasury Units Purchased 0 (1,900,000) 0      
Number of Common Units, end of period 2,702,372,154 2,689,580,631 2,619,400,000      
Current Liabilities       $ 5,923 $ 7,724  
Equity Method Investments [Member]            
Current Liabilities       $ 600 $ 738  
Class D Units [Member]            
Stock Issued During Period, Shares, New Issues 0 0 79,100,000