CONSOLIDATED CONDENSED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
CASH FLOW FROM OPERATING ACTIVITIES
Net income	$ 3,425	$ 814
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation, depletion and amortization of assets	2,891	2,926
Deferred income tax provision (benefit)	550	(111)
Other noncash charges to income	74	170
Gain on sale of assets, net	(969)	(598)
Asset impairments and related items	256	24
Undistributed earnings from affiliates	(16)	(70)
Dry hole expenses	27	8
Changes in operating assets and liabilities, net	(1,069)	(445)
Other operating, net	0	722
Net cash provided by operating activities	5,169	3,440
CASH FLOW FROM INVESTING ACTIVITIES
Capital expenditures	(3,638)	(2,439)
Change in capital accrual	7	20
Payments for purchases of assets and businesses	(726)	(1,060)
Sales of assets, net	2,745	1,293
Equity investments and other, net	(88)	60
Net cash used by investing activities	(1,700)	(2,126)
CASH FLOW FROM FINANCING ACTIVITIES
Proceeds from long-term debt, net	978	0
Payments of long-term debt	(500)	0
Proceeds from issuance of common stock	17	25
Purchases of treasury stock	(908)	(12)
Cash dividends paid	(1,780)	(1,754)
Contributions from noncontrolling interest	4	0
Other financing, net	2	0
Net cash used by financing activities	(2,187)	(1,741)
Increase (decrease) in cash and cash equivalents	1,282	(427)
Cash and cash equivalents — beginning of period	1,672	2,233
Cash and cash equivalents — end of period	$ 2,954	$ 1,806