Statement of Consolidated Cash Flows - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Cash Flows From Operating Activities
Net income (loss)	$ (861)	$ (956)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities
(Gains) losses on asset sales, net	(27)	0
Depreciation, depletion and amortization	1,665	1,984
Exploratory dry hole costs	218	176
Exploration lease impairment	24	78
Impairment	0	385
Stock compensation expense	47	51
Provision (benefit) for deferred income taxes and other tax accruals	(661)	(534)
(Income) loss from discontinued operations, net of income taxes	0	27
Change in operating assets and liabilities
(Increase) decrease in accounts receivable	79	221
(Increase) decrease in inventories	25	(47)
Increase (decrease) in accounts payable and accrued liabilities	(197)	(88)
Increase (decrease) in taxes payable	(19)	3
Change in other operating assets and liabilities	(156)	(203)
Cash provided by (used in) operating activities - continuing operations	137	1,097
Cash provided by (used in) operating activities - discontinued operations	0	(21)
Net cash provided by (used in) operating activities	137	1,076
Cash Flows From Investing Activities
Additions to property, plant and equipment - E&P	(1,115)	(2,314)
Additions to property, plant and equipment - Bakken Midstream	(120)	(109)
Proceeds from asset sales	80	0
Other, net	15	(13)
Cash provided by (used in) investing activities - continuing operations	(1,140)	(2,436)
Cash provided by (used in) investing activities - discontinued operations	0	95
Net cash provided by (used in) investing activities	(1,140)	(2,341)
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	(60)	(34)
Proceeds from issuance of preferred stock	557	0
Proceeds from issuance of common stock	1,087	0
Common stock acquired and retired	0	(78)
Cash dividends paid	(169)	(144)
Other, net	(38)	8
Cash provided by (used in) financing activities - continuing operations	1,382	(248)
Cash provided by (used in) financing activities - discontinued operations	0	0
Net cash provided by (used in) financing activities	1,382	(248)
Net Increase (Decrease) in Cash and Cash Equivalents	379	(1,513)
Cash and Cash Equivalents at Beginning of Year	2,716	2,444
Cash and Cash Equivalents at End of Period	$ 3,095	$ 931