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Amount of increase (decrease) of the credit facility.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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Debt Obligations Narrative (Details) - USD ($)	1 Months Ended		3 Months Ended
Debt Obligations Narrative (Details) - USD ($)	Mar. 31, 2019	Jan. 31, 2019	Mar. 31, 2019	Mar. 31, 2018
Debt Instrument [Line Items]
Proceeds from Issuance of Senior Long-term Debt		$ 3,960,000,000
Repayments of Long-term Debt			$ 10,733,000,000	$ 8,541,000,000
Proceeds from Issuance of Long-term Debt			11,295,000,000	6,627,000,000
Parent Company [Member]
Debt Instrument [Line Items]
Repayments of Long-term Debt			1,220,000,000	370,000,000
Proceeds from Issuance of Long-term Debt			0	$ 54,000,000
Dakota Access, LLC [Member]
Debt Instrument [Line Items]
Proceeds from Issuance of Senior Long-term Debt			2,480,000,000
ET [Member]
Debt Instrument [Line Items]
Debt Instrument, Redemption Price, Percentage of Principal Amount Redeemed	97.00%
ETO [Member]
Debt Instrument [Line Items]
Proceeds from Issuance of Senior Long-term Debt	$ 4,210,000,000
Sunoco LP [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	0		0
Line of Credit Facility, Increase (Decrease), Net	600,000,000
USAC [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Remaining Borrowing Capacity	1,240,000,000		1,240,000,000
Line of Credit Facility, Maximum Borrowing Capacity	0.06875		0.06875
Line of Credit Facility, Increase (Decrease), Net	750,000,000
ETO Credit Facility due December 2022 [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Current Borrowing Capacity	3,150,000,000		3,150,000,000
Long-term Line of Credit	1,760,000,000		1,760,000,000
Long-term Commercial Paper, Noncurrent	1,760,000,000		1,760,000,000
Letters of Credit Outstanding, Amount	$ 89,000,000		$ 89,000,000
Line of Credit Facility, Interest Rate at Period End	3.17%		3.17%
Line of Credit Facility, Maximum Borrowing Capacity	$ 5,000,000,000		$ 5,000,000,000
ETO Credit Facility due December 2022 [Member] \| Accordion feature [Member]
Debt Instrument [Line Items]
Long-term Line of Credit	6,000,000,000		6,000,000,000
ETO 364-day Credit Facility due November 2019 [Member]
Debt Instrument [Line Items]
Long-term Line of Credit	0		0
Line of Credit Facility, Maximum Borrowing Capacity	1,000,000,000		1,000,000,000
ETE 7.5% Senior Notes due 2020 [Member] \| Parent Company [Member]
Debt Instrument [Line Items]
Senior Notes	$ 58,000,000		$ 58,000,000
Debt Instrument, Interest Rate, Stated Percentage	7.50%		7.50%
3.625% Senior Notes due 2022 [Member] \| Dakota Access, LLC [Member]
Debt Instrument [Line Items]
Senior Notes	$ 650,000,000		$ 650,000,000
Debt Instrument, Interest Rate, Stated Percentage	3.625%		3.625%
Sunoco LP $1.5 billion Revolving Credit Facility due July 2023 [Member] \| Sunoco LP [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Current Borrowing Capacity	$ 1,500,000,000		$ 1,500,000,000
Long-term Line of Credit	150,000,000		150,000,000
Letters of Credit Outstanding, Amount	8,000,000		8,000,000
Line of Credit Facility, Remaining Borrowing Capacity	$ 1,340,000,000		$ 1,340,000,000
Line of Credit Facility, Interest Rate at Period End	4.49%		4.49%
USAC Credit Facility, due 2023 [Member] \| USA Compression Partners, LP [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Current Borrowing Capacity	$ 1,600,000,000		$ 1,600,000,000
USAC Credit Facility, due 2023 [Member] \| USAC [Member]
Debt Instrument [Line Items]
Long-term Line of Credit	361,000,000		361,000,000
Letters of Credit Outstanding, Amount	0		0
Line of Credit Facility, Remaining Borrowing Capacity	$ 493,000,000		$ 493,000,000
Line of Credit Facility, Interest Rate at Period End	5.17%		5.17%
4.20% Senior Notes due 2023 [Member] \| ETO [Member]
Debt Instrument [Line Items]
Senior Notes	$ 750,000,000		$ 750,000,000
Debt Instrument, Interest Rate, Stated Percentage	4.50%		4.50%
4.95% Senior Notes due 2028 [Member] \| ETO [Member]
Debt Instrument [Line Items]
Senior Notes	$ 1,500,000,000		$ 1,500,000,000
Debt Instrument, Interest Rate, Stated Percentage	5.25%		5.25%
5.80% Senior Notes due 2038 [Member] \| ETO [Member]
Debt Instrument [Line Items]
Senior Notes	$ 1,750,000,000		$ 1,750,000,000
Debt Instrument, Interest Rate, Stated Percentage	6.25%		6.25%
3.90% Senior Notes due 2024 [Member] \| Dakota Access, LLC [Member]
Debt Instrument [Line Items]
Senior Notes	$ 1,000,000,000		$ 1,000,000,000
Debt Instrument, Interest Rate, Stated Percentage	3.90%		3.90%
4.625% Senior Notes due 2029 [Member] \| Dakota Access, LLC [Member]
Debt Instrument [Line Items]
Senior Notes	$ 850,000,000		$ 850,000,000
Debt Instrument, Interest Rate, Stated Percentage	4.625%		4.625%
4.25% Senior Notes due March 15, 2023 [Member] \| Parent Company [Member]
Debt Instrument [Line Items]
Senior Notes	$ 7,000,000		$ 7,000,000
Debt Instrument, Interest Rate, Stated Percentage	4.25%		4.25%
4.25% Senior Notes due March 15, 2023 [Member] \| ETO [Member]
Debt Instrument [Line Items]
Senior Notes	$ 993,000,000		$ 993,000,000
Debt Instrument, Interest Rate, Stated Percentage	4.25%		4.25%
5.875% Senior Notes due January 15, 2024 [Member] \| Parent Company [Member]
Debt Instrument [Line Items]
Senior Notes	$ 23,000,000		$ 23,000,000
Debt Instrument, Interest Rate, Stated Percentage	5.875%		5.875%
5.875% Senior Notes due January 15, 2024 [Member] \| ETO [Member]
Debt Instrument [Line Items]
Senior Notes	$ 1,130,000,000		$ 1,130,000,000
Debt Instrument, Interest Rate, Stated Percentage	5.875%		5.875%
5.5% Senior Notes due June 1, 2027 [Member] \| Parent Company [Member]
Debt Instrument [Line Items]
Senior Notes	$ 44,000,000		$ 44,000,000
Debt Instrument, Interest Rate, Stated Percentage	5.50%		5.50%
5.5% Senior Notes due June 1, 2027 [Member] \| ETO [Member]
Debt Instrument [Line Items]
Senior Notes	$ 956,000,000		$ 956,000,000
Debt Instrument, Interest Rate, Stated Percentage	5.50%		5.50%
7.50% Senior Notes Due 2020 [Member] \| ETO [Member]
Debt Instrument [Line Items]
Senior Notes	$ 1,130,000,000		$ 1,130,000,000
Debt Instrument, Interest Rate, Stated Percentage	7.50%		7.50%