Segment Disclosures (Tables)

6 Months Ended

Jun. 30, 2020

Segment Reporting [Abstract]

Reconciliation of Revenue from Segments to Consolidated [Table Text Block]

The following table reflects the reconciliation of Segment revenues to Total revenues as reported in the Consolidated Statement of Operations and Total assets by reportable segment.

	Transmission & Gulf of Mexico		Northeast G&P			West		Other		Eliminations			Total
			(Millions)
Three Months Ended June 30, 2020
Segment revenues:
Service revenues
External	$	783	$	342		$	316	$	5	$	—		$	1,446
Internal	12		12			—		4		(28		)	—
Total service revenues	795		354			316		9		(28		)	1,446
Total service revenues – commodity consideration	3		1			21		—		—			25
Product sales
External	29		(8		)	289		—		—			310
Internal	7		9			14		—		(30		)	—
Total product sales	36		1			303		—		(30		)	310
Total revenues	$	834	$	356		$	640	$	9	$	(58	)	$	1,781
Three Months Ended June 30, 2019
Segment revenues:
Service revenues
External	$	797	$	319		$	368	$	5	$	—		$	1,489
Internal	11		11			—		3		(25		)	—
Total service revenues	808		330			368		8		(25		)	1,489
Total service revenues – commodity consideration	13		3			40		—		—			56
Product sales
External	51		29			416		—		—			496
Internal	17		8			18		—		(43		)	—
Total product sales	68		37			434		—		(43		)	496
Total revenues	$	889	$	370		$	842	$	8	$	(68	)	$	2,041
Six Months Ended June 30, 2020
Segment revenues:
Service revenues
External	$	1,597	$	686		$	627	$	10	$	—		$	2,920
Internal	27		26			—		7		(60		)	—
Total service revenues	1,624		712			627		17		(60		)	2,920
Total service revenues – commodity consideration	8		3			42		—		—			53
Product sales
External	70		15			636		—		—			721
Internal	18		15			26		—		(59		)	—
Total product sales	88		30			662		—		(59		)	721
Total revenues	$	1,720	$	745		$	1,331	$	17	$	(119	)	$	3,694

	Transmission & Gulf of Mexico		Northeast G&P		West		Other		Eliminations			Total
			(Millions)
Six Months Ended June 30, 2019
Segment revenues:
Service revenues
External	$	1,608	$	585	$	727	$	9	$	—		$	2,929
Internal	23		21		—		6		(50		)	—
Total service revenues	1,631		606		727		15		(50		)	2,929
Total service revenues – commodity consideration	26		8		86		—		—			120
Product sales
External	103		65		878		—		—			1,046
Internal	47		19		35		—		(101		)	—
Total product sales	150		84		913		—		(101		)	1,046
Total revenues	$	1,807	$	698	$	1,726	$	15	$	(151	)	$	4,095
June 30, 2020
Total assets (1)	$	19,569	$	14,609	$	10,647	$	1,797	$	(1,279	)	$	45,343
December 31, 2019
Total assets	$	18,796	$	15,399	$	11,265	$	1,151	$	(571	)	$	46,040

_______________

(1)

Increase in Other Total assets is due primarily to increased cash balance.

Reconciliation of Modified EBITDA to Net Income (Loss) [Table Text Block]

The following table reflects the reconciliation of Modified EBITDA to Net income (loss) as reported in the Consolidated Statement of Operations.

	Three Months Ended  June 30,						Six Months Ended  June 30,
	2020			2019			2020			2019
	(Millions)
Modified EBITDA by segment:
Transmission & Gulf of Mexico	$	615		$	590		$	1,277		$	1,226
Northeast G&P	370			303			739			602
West	253			212			468			468
Other	8			7			15			3
	1,246			1,112			2,499			2,299
Accretion expense associated with asset retirement obligations for nonregulated operations	(7		)	(8		)	(17		)	(17		)
Depreciation and amortization expenses	(430		)	(424		)	(859		)	(840		)
Impairment of goodwill	—			—			(187		)	—
Equity earnings (losses)	108			87			130			167
Impairment of equity-method investments	—			2			(938		)	(72		)
Other investing income (loss) – net	1			124			4			125
Proportional Modified EBITDA of equity-method investments	(192		)	(175		)	(384		)	(365		)
Interest expense	(294		)	(296		)	(590		)	(592		)
(Provision) benefit for income taxes	(117		)	(98		)	87			(167		)
Net income (loss)	$	315		$	324		$	(255	)	$	538