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Debt Obligations Narrative (Details) - USD ($)	1 Months Ended			6 Months Ended
Debt Obligations Narrative (Details) - USD ($)	Jun. 30, 2019	Mar. 31, 2019	Jan. 31, 2019	Jun. 30, 2019	Jun. 30, 2018
Debt Instrument [Line Items]
Proceeds from Issuance of Senior Long-term Debt			$ 3,960,000,000
Repayments of Long-term Debt				$ 15,925,000,000	$ 18,039,000,000
Proceeds from Issuance of Long-term Debt				16,463,000,000	16,702,000,000
Parent Company [Member]
Debt Instrument [Line Items]
Repayments of Long-term Debt				1,220,000,000	587,000,000
Proceeds from Issuance of Long-term Debt				0	$ 355,000,000
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
Panhandle [Member]
Debt Instrument [Line Items]
Repayments of Senior Debt	$ 150,000,000
Sunoco LP [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	0.0600			0.0600
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	2,560,000,000			2,560,000,000
Long-term Line of Credit	2,370,000,000			2,370,000,000
Long-term Commercial Paper, Noncurrent	2,360,000,000			2,360,000,000
Letters of Credit Outstanding, Amount	$ 77,000,000			$ 77,000,000
Line of Credit Facility, Interest Rate at Period End	3.05%			3.05%
Line of Credit Facility, Maximum Borrowing Capacity	$ 5,000,000,000.00			$ 5,000,000,000.00
ETO Credit Facility due December 2022 [Member] \| Accordion feature [Member]
Debt Instrument [Line Items]
Long-term Line of Credit	6,000,000,000.00			6,000,000,000.00
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	1,000,000,000.00			1,000,000,000.00
ETE 7.5% Senior Notes due 2020 [Member] \| Parent Company [Member]
Debt Instrument [Line Items]
Senior Notes	$ 52,000,000			$ 52,000,000
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	117,000,000			117,000,000
Letters of Credit Outstanding, Amount	8,000,000			8,000,000
Line of Credit Facility, Remaining Borrowing Capacity	$ 1,380,000,000			$ 1,380,000,000
Line of Credit Facility, Interest Rate at Period End	4.41%			4.41%
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	363,000,000			363,000,000
Letters of Credit Outstanding, Amount	0			0
Line of Credit Facility, Remaining Borrowing Capacity	$ 439,000,000			$ 439,000,000
Line of Credit Facility, Interest Rate at Period End	5.10%			5.10%
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	$ 1,000,000,000.00			$ 1,000,000,000.00
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	$ 5,000,000			$ 5,000,000
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	$ 995,000,000			$ 995,000,000
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	$ 1,140,000,000			$ 1,140,000,000
Debt Instrument, Interest Rate, Stated Percentage	7.50%			7.50%