Revenue Recognition (Tables)

6 Months Ended

Jun. 30, 2018

Revenue Recognition [Abstract]

Disaggregation of Revenue by Segment

						Intersegment
(in millions)		E&P		Midstream		Revenues		Total
Three months ended June 30, 2018
Gas sales	$	400	$	–	$	7	$	407
Oil sales		44		–		–		44
NGL sales		75		–		–		75
Marketing		–		728		(463)		265
Gas gathering		–		69		(45)		24
Other (1)		1		−		–		1
Total	$	520	$	797	$	(501)	$	816
Three months ended June 30, 2017
Gas sales	$	466	$	–	$	5	$	471
Oil sales		23		–		–		23
NGL sales		37		–		–		37
Marketing		–		740		(490)		250
Gas gathering		–		82		(52)		30
Total	$	526	$	822	$	(537)	$	811

						Intersegment
(in millions)		E&P		Midstream		Revenues		Total
Six months ended June 30, 2018
Gas sales	$	935	$	–	$	12	$	947
Oil sales		78		–		1		79
NGL sales		140		–		–		140
Marketing		–		1,557		(1,039)		518
Gas gathering		–		136		(88)		48
Other (1)		4		–		−		4
Total	$	1,157	$	1,693	$	(1,114)	$	1,736
Six months ended June 30, 2017
Gas sales	$	966	$	–	$	8	$	974
Oil sales		46		–		–		46
NGL sales		77		–		–		77
Marketing		–		1,517		(1,014)		503
Gas gathering		–		163		(106)		57
Total	$	1,089	$	1,680	$	(1,112)	$	1,657

(1) Other E&P revenues consists primarily of water sales to third-party operators.

Disaggregation of Revenue on Geographic Basis

	For the three months ended June 30,				For the six months ended June 30,
(in millions)		2018		2017		2018		2017
Northeast Appalachia	$	213	$	216	$	540	$	469
Southwest Appalachia		166		110		322		214
Fayetteville Shale		139		198		291		403
Other		2		2		4		3
Total	$	520	$	526	$	1,157	$	1,089

Reconciliation of Accounts Receivable

(in millions)		June 30, 2018		December 31, 2017
Receivables from contracts with customers	$	305	$	322
Other accounts receivable		111		106
Total accounts receivable	$	416	$	428