CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Operating Revenues:
Gas sales	$ 251	$ 457	$ 566	$ 1,082
Oil sales	20	24	31	41
NGL sales	20	15	37	33
Marketing	196	222	394	447
Gas gathering	35	46	73	94
Total Operating Revenues	522	764	1,101	1,697
Operating Costs and Expenses:
Marketing purchases	197	219	393	441
Operating expenses	151	176	316	331
General and administrative expenses	56	60	110	128
Restructuring charges	11		75
Depreciation, depletion and amortization	107	308	250	601
Impairment of natural gas and oil properties	470	1,535	1,504	1,535
Gain on sale of assets, net		(277)		(277)
Taxes, other than income taxes	22	27	45	57
Total Operating Costs and Expenses	1,014	2,048	2,693	2,816
Operating Loss	(492)	(1,284)	(1,592)	(1,119)
Interest Expense:
Interest on debt	56	52	109	102
Other interest charges	2	3	4	52
Interest capitalized	(41)	(54)	(82)	(102)
Total Interest Expense	17	1	31	52
Other Income (Loss), Net		3	(3)	2
Gain (Loss) on Derivatives	(85)	1	(99)	15
Loss Before Income Taxes	(594)	(1,281)	(1,725)	(1,154)
Provision (Benefit) for Income Taxes:
Current		7		7
Deferred	(1)	(500)		(451)
Provision (Benefit) for Income Taxes	(1)	(493)		(444)
Net Loss	(593)	(788)	(1,725)	(710)
Mandatory convertible preferred stock dividend	27	27	54	52
Net Loss Attributable to Common Stock	$ (620)	$ (815)	$ (1,779)	$ (762)
Loss Per Common Share:
Basic	$ (1.61)	$ (2.13)	$ (4.63)	$ (2.01)
Diluted	$ (1.61)	$ (2.13)	$ (4.63)	$ (2.01)
Weighted Average Common Shares Outstanding:
Basic	385,594,815	382,114,011	384,232,831	378,797,446
Diluted	385,594,815	382,114,011	384,232,831	378,797,446