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ETE Unit-Based Compensation Plans (Details) - USD ($)
$ / shares in Units, shares in Millions, $ in Millions
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Stock Issued During Period, Shares, New Issues 2.3 32.2 2.1
ETE Long-Term Incentive Plan [Member]      
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant 15.1    
Sunoco LP Unit Based Compensation Plans [Member]      
Awards granted 7.8    
Weighted Average Grant-Date Fair Value Per Unit, Awards granted $ 13.00 $ 17.01 $ 16.37
Unvested awards 22.4 19.5 [1]  
Weighted Average Grant-Date Fair Value Per Unit $ 15.94 $ 18.03 [1]  
Units Vested In Period (3.5)    
Weighted Average Grant-Date Fair Value Per Unit, Awards vested $ 21.35    
Fair Value Of Units As Of The Vesting Date $ 49 $ 40 $ 40
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized $ 228    
Equity Instruments Other than Options, Outstanding, Weighted Average Remaining Contractual Term 2 years 8 months 17 days    
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period (1.4)    
Weighted Average Grant-Date Fair Value Per Unit, Awards forfeited $ 15.16    
[1] In connection with the Energy Transfer Merger, ET assumed the former ETO plans, including the related unvested awards. Outstanding awards under the former ETO plans are reflected for the entire period above. Amounts related to the period prior to the Energy Transfer Merger are adjusted for the 1.28 to 1 conversion ratio that was applied in the merger.