Statement of Consolidated Cash Flows - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Cash Flows From Operating Activities
Net income (loss)	$ 75	$ (65)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Gains on asset sales, net	0	(7)
Depreciation, depletion and amortization	498	417
Exploration lease and other impairment	7	10
Stock compensation expense	27	13
Noncash (gains) losses on commodity derivatives, net	29	38
Provision (benefit) for deferred income taxes and other tax accruals	(1)	(36)
Loss on debt extinguishment	0	27
Changes in operating assets and liabilities:
(Increase) decrease in accounts receivable	(117)	(11)
(Increase) decrease in inventories	(29)	(7)
Increase (decrease) in accounts payable and accrued liabilities	(204)	(135)
Increase (decrease) in taxes payable	8	(1)
Changes in other operating assets and liabilities	(55)	(33)
Net cash provided by (used in) operating activities	238	210
Cash Flows From Investing Activities
Additions to property, plant and equipment - E&P	(521)	(363)
Additions to property, plant and equipment - Midstream	(150)	(37)
Payments for Midstream equity investments	(7)	(24)
Proceeds from asset sales, net of cash sold	0	6
Other, net	(2)	(4)
Net cash provided by (used in) investing activities	(680)	(422)
Cash Flows From Financing Activities
Net borrowings (repayments) of debt with maturities of 90 days or less	199	0
Debt with maturities of greater than 90 days – Repayments	(3)	(434)
Payments on finance lease obligations	(23)	0
Common stock acquired and retired	(25)	(371)
Cash dividends paid	(88)	(89)
Noncontrolling interests, net	(13)	(12)
Other, net	1	(3)
Net cash provided by (used in) financing activities	48	(909)
Net Increase (Decrease) in Cash and Cash Equivalents	(394)	(1,121)
Cash and Cash Equivalents at Beginning of Year	2,694	4,847
Cash and Cash Equivalents at End of Period	$ 2,300	$ 3,726