Statement of Consolidated Cash Flows - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Cash Flows From Operating Activities
Net income (loss)	$ (488)	$ (389)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities
Depreciation, depletion and amortization	868	956
Exploratory dry hole costs	85	169
Exploration lease impairment	9	54
Stock compensation expense	25	26
Provision (benefit) for deferred income taxes and other tax accruals	(351)	(347)
(Income) loss from discontinued operations, net of income taxes	0	13
Change in operating assets and liabilities
(Increase) decrease in accounts receivable	317	319
(Increase) decrease in inventories	(13)	(27)
Increase (decrease) in accounts payable and accrued liabilities	(360)	(222)
Increase (decrease) in taxes payable	(15)	(14)
Change in other operating assets and liabilities	(137)	(91)
Cash provided by (used in) operating activities - continuing operations	(60)	447
Cash provided by (used in) operating activities - discontinued operations	0	(11)
Net cash provided by (used in) operating activities	(60)	436
Cash Flows From Investing Activities
Additions to property, plant and equipment - E&P	(568)	(1,251)
Additions to property, plant and equipment - Bakken Midstream	(52)	(60)
Other, net	7	(10)
Cash provided by (used in) investing activities - continuing operations	(613)	(1,321)
Cash provided by (used in) investing activities - discontinued operations	0	95
Net cash provided by (used in) investing activities	(613)	(1,226)
Cash Flows From Financing Activities
Debt with maturities of greater than 90 days – Borrowings	5	0
Debt with maturities of greater than 90 days – Repayments	(17)	(17)
Proceeds from issuance of preferred stock	557	0
Proceeds from issuance of common stock	1,087	0
Common stock acquired and retired	0	(67)
Cash dividends paid	(80)	(72)
Other, net	(38)	8
Cash provided by (used in) financing activities - continuing operations	1,514	(148)
Cash provided by (used in) financing activities - discontinued operations	0	0
Net cash provided by (used in) financing activities	1,514	(148)
Net Increase (Decrease) in Cash and Cash Equivalents	841	(938)
Cash and Cash Equivalents at Beginning of Year	2,716	2,444
Cash and Cash Equivalents at End of Period	$ 3,557	$ 1,506