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Unit-based Compensation (Details) $ / shares in Units, $ in Thousands		1 Months Ended		2 Months Ended	12 Months Ended
	Apr. 02, 2018 $ / shares shares	Apr. 30, 2017	Apr. 30, 2015	Dec. 31, 2018 USD ($) $ / shares shares	Dec. 31, 2018 USD ($) $ / shares shares	Dec. 31, 2017 USD ($) $ / shares shares	Dec. 31, 2016 USD ($) $ / shares shares
Unit-based Compensation
Compensation expense | $					$ 6,800
Cash paid related to net settlement of unit-based awards | $					4,447
Phantom units
Unit-based Compensation
Unit-based compensation liability | $				$ 3,600	3,600
Executive officers, employees and independent directors | Phantom units
Weighted-Average Grant Date Fair Value per Unit
Total fair value and intrinsic value of the phantom units vested | $					$ 9,700	$ 1,600	$ 1,000
LTIP
Unit-based Compensation
Number of common units that may be delivered pursuant to awards under the plan				10,000,000	10,000,000
Additional common units available to be awarded				8,590,000
LTIP | Phantom units
Unit-based Compensation
Percentage of outstanding unvested phantom units that vested upon change in control	100.00%
Percentage of awards vesting	100.00%
Vesting period					3 years
Number of Units
Granted (in units)					1,136,447
Vested (in units)					(571,892)
Forfeited (in units)	(324,922)				(144,013)
Assumed upon change in control (in units)	1,010,522
Outstanding, end of period (in units)				1,431,064	1,431,064
Weighted-Average Grant Date Fair Value per Unit
Granted (in dollars per unit) | $ / shares					$ 15.47
Vested (in dollars per unit) | $ / shares					14.79
Forfeited (in dollars per unit) | $ / shares	$ 27.10				17.85
Assumed upon change in control (in dollars per unit) | $ / shares	14.24
Outstanding, end of period (in dollars per unit) | $ / shares				$ 14.98	$ 14.98
Unrecognized compensation cost associated with phantom unit awards | $				$ 15,000	$ 15,000
Weighted-average period over which the unrecognized compensation cost is expected to be recognized					2 years 2 months 12 days
LTIP | Phantom units | Vesting at the end of the third year of service
Unit-based Compensation
Percentage of outstanding unvested phantom units that vested upon change in control					60.00%
Percentage of awards vesting					60.00%
LTIP | Phantom units | Vesting at the end of the fifth year of service
Unit-based Compensation
Percentage of outstanding unvested phantom units that vested upon change in control					40.00%
Percentage of awards vesting					40.00%
LTIP | Executive officers, employees and independent directors
Unit-based Compensation
Cash paid related to net settlement of unit-based awards | $					$ 4,400	600	900
LTIP | Executive officers, employees and independent directors | Phantom units
Unit-based Compensation
Compensation expense | $					$ 11,700	$ 4,000	$ 3,500
Number of Units
Granted (in units)					1,136,447
LTIP | Employees | Phantom units
Number of Units
Vested (in units)					(563,544)
ETP | Sunoco Logistics Partners L.P.
Unit-based Compensation
Unit-for unit exchange ratio		1.5
ETP | Regency Energy Partners L.P.
Unit-based Compensation
Unit-for unit exchange ratio			0.4124
Predecessor | LTIP | Phantom units
Number of Units
Outstanding, beginning of period (in units)					324,922	429,535	334,354
Granted (in units)						2,500	147,384
Vested (in units)						(95,499)	(42,964)
Forfeited (in units)						(11,614)	(9,239)
Outstanding, end of period (in units)						324,922	429,535
Weighted-Average Grant Date Fair Value per Unit
Outstanding, beginning of period (in dollars per unit) | $ / shares					$ 27.10	$ 29.34	$ 32.98
Granted (in dollars per unit) | $ / shares						18.75	24.22
Vested (in dollars per unit) | $ / shares						36.94	40.28
Forfeited (in dollars per unit) | $ / shares						27.41	28.58
Outstanding, end of period (in dollars per unit) | $ / shares						$ 27.10	$ 29.34
Predecessor | ETP | Employees
Unit-based Compensation
Vesting period						5 years

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