CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	[1]
CASH FLOWS FROM OPERATING ACTIVITIES:
NET INCOME (LOSS)	$ (21)	$ 18	[2]
ADJUSTMENTS TO RECONCILE NET INCOME (LOSS) TO CASH PROVIDED BY OPERATING ACTIVITIES:
Depreciation, depletion and amortization	519	459	[3]
Deferred income tax benefit	(314)	0
Derivative losses, net	304	117
Cash receipts on derivative settlements, net	14	13
Stock-based compensation	6	9
Gains on sales of assets	(19)	(19)	[3]
Impairments	1	10	[3]
Exploration	18	68
(Gains) losses on investments	1	(139)
Other	40	(36)
Changes in assets and liabilities	(93)	88
Net Cash Provided By Operating Activities	456	588
CASH FLOWS FROM INVESTING ACTIVITIES:
Drilling and completion costs	(515)	(420)
Business combination, net	(353)	0
Acquisitions of proved and unproved properties	(6)	(17)
Proceeds from divestitures of proved and unproved properties	26	319
Additions to other property and equipment	(9)	(3)
Proceeds from sales of other property and equipment	1	68
Proceeds from sales of investments	0	74
Net Cash Provided By (Used In) Investing Activities	(856)	21
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from revolving credit facility borrowings	3,572	2,904
Payments on revolving credit facility borrowings	(3,136)	(3,485)
Cash paid to purchase debt	(1)
Cash paid for preferred stock dividends	(23)	(23)
Distributions to noncontrolling interest owners	0	(2)
Other	(8)	(4)
Net Cash Provided By (Used In) Financing Activities	404	(610)
Net increase (decrease) in cash and cash equivalents	4	(1)
Cash and cash equivalents, beginning of period	4	5
Cash and cash equivalents, end of period	8	4
SUPPLEMENTAL CASH FLOW INFORMATION:
Interest paid, net of capitalized interest	145	170
Income taxes paid, net of refunds received	(5)	0
SUPPLEMENTAL DISCLOSURE OF SIGNIFICANT NON-CASH INVESTING AND FINANCING ACTIVITIES:
Common stock issued for business combination	2,037	0
Change in accrued drilling and completion costs
SUPPLEMENTAL DISCLOSURE OF SIGNIFICANT NON-CASH INVESTING AND FINANCING ACTIVITIES:
Change in non-cash investing and financing activities	39	103
Change in divested proved and unproved properties
SUPPLEMENTAL DISCLOSURE OF SIGNIFICANT NON-CASH INVESTING AND FINANCING ACTIVITIES:
Change in non-cash investing and financing activities	$ 2	$ 12

[1] Financial information for 2018 has been recast to reflect the retrospective application of the successful efforts method of accounting. See Note 1.

[2] Financial information for 2018 has been recast to reflect the retrospective application of the successful efforts method of accounting. See Note 1.

[3] Financial information for 2018 has been recast to reflect the retrospective application of the successful efforts method of accounting. See Note 1.