Consolidated Statement of Cash Flows - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Cash Flows From Operating Activities
Net income (loss)	$ (2,391)	$ (3,540)
Adjustments to reconcile net income (loss) to net cash provided by operating activities
Depreciation, depletion and amortization	5,212	7,001
Impairments	6,475	321
Dry hole costs and leasehold impairments	435	1,010
Accretion on discounted liabilities	276	329
Deferred taxes	(2,770)	(2,152)
Distributions received greater than equity losses (undistributed equity earnings)	(193)	414
Gain on dispositions	(2,144)	(202)
Other	(367)	(50)
Working capital adjustments
Decrease (increase) in accounts and notes receivable	65	1,112
Decrease (increase) in inventories	(15)	22
Decrease (increase) in prepaid expenses and other current assets	(12)	46
Increase (decrease) in accounts payable	(212)	(515)
Increase (decrease) in taxes and other accruals	237	(836)
Net cash provided by operating activities	4,596	2,960
Cash Flows From Investing Activities
Capital expenditures and investments	(3,074)	(3,870)
Working capital changes associated with investing activities	(18)	(401)
Proceeds from asset dispositions	13,740	419
Net sales (purchases) of short-term investments	(2,583)	(229)
Collection of advances/loans-related parties	115	108
Other	51	61
Net Cash Provided by (Used in) Investing Activities	8,231	(3,912)
Cash Flows From Financing Activities
Issuance of debt	0	4,594
Repayment of debt	(6,594)	(839)
Issuance of company common stock	(65)	(52)
Repurchase of company common stock	(2,045)	0
Dividends paid	(986)	(940)
Other	(80)	(93)
Net Cash Provided by (Used in) Financing Activities	(9,770)	2,670
Effect of Exchange Rate Changes on Cash and Cash Equivalents	244	4
Net Change in Cash and Cash Equivalents	3,301	1,722
Cash and cash equivalents at beginning of period	3,610	2,368
Cash and Cash Equivalents at End of Period	$ 6,911	$ 4,090