CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Cash Flows from Operating Activities
Net income (loss)	$ (1,250)	$ (2,356)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities
Depreciation, depletion, and amortization	3,235	3,202
Deferred income taxes	(1,026)	(1,121)
Dry hole expense and impairments of unproved properties	2,144	300
Impairments	383	61
(Gains) losses on divestitures, net	(815)	516
Loss on early extinguishment of debt	2	124
Total (gains) losses on derivatives, net	(33)	634
Operating portion of net cash received (paid) in settlement of derivative instruments	21	229
Other	225	256
Changes in assets and liabilities
(Increase) decrease in accounts receivable	(32)	810
Increase (decrease) in accounts payable and other current liabilities	(95)	(637)
Other items, net	(140)	(141)
Net cash provided by (used in) operating activities	2,619	1,877
Cash Flows from Investing Activities
Additions to properties and equipment	(3,538)	(2,618)
Divestitures of properties and equipment and other assets	3,480	1,281
Other, net	32	81
Net cash provided by (used in) investing activities	(26)	(1,256)
Cash Flows from Financing Activities
Borrowings, net of issuance costs	249	5,840
Repayments of debt	(42)	(6,023)
Financing portion of net cash received (paid) for derivative instruments	(160)	(639)
Increase (decrease) in outstanding checks	(58)	(126)
Dividends paid	(84)	(78)
Repurchase of common stock	(37)	(32)
Issuance of common stock	0	2,188
Sale of subsidiary units	0	1,163
Distributions to noncontrolling interest owners	(327)	(260)
Proceeds from conveyance of future hard minerals royalty revenues, net of transaction costs	0	413
Payments of future hard minerals royalty revenues conveyed	(50)	(25)
Other financing activities	(18)	0
Net cash provided by (used in) financing activities	(527)	2,421
Effect of Exchange Rate Changes on Cash	1	(1)
Net Increase (Decrease) in Cash and Cash Equivalents	2,067	3,041
Cash and Cash Equivalents at Beginning of Period	3,184	939
Cash and Cash Equivalents at End of Period	$ 5,251	$ 3,980