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Acquisitions Narrative (Details) gal in Millions, $ in Millions	1 Months Ended		3 Months Ended			6 Months Ended			12 Months Ended
	Apr. 30, 2018 USD ($) shares	Jan. 22, 2018 USD ($)	Jun. 30, 2018 USD ($)	Jun. 30, 2017 USD ($)		Jun. 30, 2018 USD ($)	Jun. 30, 2017 USD ($)		Dec. 31, 2018 gal	Jan. 31, 2018	Dec. 31, 2017
Impairment losses			$ 0	$ 231		$ 0	$ 231
Revenues			14,118	$ 9,427	[1]	26,000	$ 19,088	[1]
Retail Fuel Outlets										97
Subsequent Event [Member]
Long-term Purchase Commitment, Minimum Volume Required | gal									2,000
USAC Transaction [Member]
Payments to Acquire Businesses, Gross	$ 1,230
Business Combination, Consideration Transferred	$ 1,700
USA Compression Partners, LP [Member] | USAC Transaction [Member]
Sale of Stock, Number of Shares Issued in Transaction | shares	19,191,351
RIGS Haynesville Partnership Co. [Member]
Equity Method Investment, Ownership Percentage	50.01%										49.99%
7-Eleven [Member]
Revenues		$ 199	757			1,500
Trade Receivables Held-for-sale, Reconciliation to Cash Flow, Period Increase (Decrease)			$ 979			$ 1,600
Class B Units [Member] | USA Compression Partners, LP [Member] | USAC Transaction [Member]
Sale of Stock, Number of Shares Issued in Transaction | shares	6,397,965
ETE [Member] | USA Compression Partners, LP [Member] | USAC Transaction [Member]
Sale of Stock, Number of Shares Issued in Transaction | shares	12,466,912
Equity Issued in Business Combination, Fair Value Disclosure	$ 250
USAC GP [Member] | USA Compression Partners, LP [Member] | USAC Transaction [Member]
Sale of Stock, Number of Shares Issued in Transaction | shares	8,000,000
Portfolio optimization plan [Member]
Retail Fuel Outlets										97
Sold [Member]
Retail Fuel Outlets										47
Under contract [Member]
Retail Fuel Outlets										3
Currently being marketed [Member]
Retail Fuel Outlets										6
7-Eleven Transaction [Member]
Retail Fuel Outlets										32
West Texas, Oklahoma and New Mexico [Member]
Retail Fuel Outlets										207
West Texas, Oklahoma and New Mexico [Member] | 7-Eleven Transaction [Member]
Retail Fuel Outlets										9
Additional aggregate volumes [Member] | Subsequent Event [Member]
Long-term Purchase Commitment, Minimum Volume Required | gal									500
[1] As adjusted. See Note 1.

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