Reportable Segments Table - Segment Adjusted EBITDA (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2019	Jun. 30, 2018	Mar. 31, 2018	Jun. 30, 2019	Jun. 30, 2018
Segment Reporting Information [Line Items]
Segment Adjusted EBITDA	$ 2,824	$ 2,262		$ 5,621	$ 4,264
Depreciation, depletion and amortization	(785)	(694)		(1,559)	(1,359)
Interest expense, net	(578)	(510)		(1,168)	(976)
Impairment losses	0	0		(50)	0
Gains (losses) on interest rate derivatives	(122)	20		(196)	72
Non-cash compensation expense	(29)	(32)		(58)	(55)
Unrealized gains (losses) on commodity risk management activities	(23)	(265)		26	(352)
Losses on extinguishments of debt	0	0		(18)	(106)
Inventory valuation adjustments	4	32		97	57
Equity in earnings of unconsolidated affiliates	77	92		142	171
Adjusted EBITDA related to unconsolidated affiliates	(163)	(168)		(309)	(324)
Adjusted EBITDA attributable to discontinued operations	0	5		0	25
Other, net	(37)	15		(20)	(26)
INCOME FROM CONTINUING OPERATIONS BEFORE INCOME TAX EXPENSE	1,242	727		2,548	1,443
Income tax (benefit) expense from continuing operations	(34)	(68)		(160)	(58)
Income from continuing operations	1,208	659		2,388	1,385
Loss from discontinued operations, net of income taxes	0	(26)		0	(263)
Net income	1,208	633	$ 489	2,388	1,122
Intrastate Transportation And Storage [Member]
Segment Reporting Information [Line Items]
Segment Adjusted EBITDA	290	208		542	400
Investment In Sunoco LP [Member]
Segment Reporting Information [Line Items]
Segment Adjusted EBITDA	152	140		305	249
Investment In USAC [Member]
Segment Reporting Information [Line Items]
Segment Adjusted EBITDA	105	95		206	95
Adjustments And Eliminations [Member]
Segment Reporting Information [Line Items]
Segment Adjusted EBITDA	10	21		45	64
Interstate Transportation and Storage [Member]
Segment Reporting Information [Line Items]
Segment Adjusted EBITDA	460	375		916	741
Midstream [Member]
Segment Reporting Information [Line Items]
Segment Adjusted EBITDA	412	414		794	791
NGL and refined products transportation and services [Member]
Segment Reporting Information [Line Items]
Segment Adjusted EBITDA	644	461		1,256	912
Crude oil transportation and services [Member]
Segment Reporting Information [Line Items]
Segment Adjusted EBITDA	$ 751	$ 548		$ 1,557	$ 1,012

Adjusted EBITDA attributable to discontinued operations

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Proportionate amount contributed by an equity method investee to the segment performance measure.

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- Definition

The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method.

+ References

+ Details

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- Definition

The net change in the difference between the fair value and the carrying value, or in the comparative fair values, of derivative instruments, including options, swaps, futures, and forward contracts, held at each balance sheet date, that was included in earnings for the period.

+ References

+ Details

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- Details

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- Details

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- Details

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