Consolidated Statement of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Operating Activities
Net Income (Loss)	$ 9,269	$ (431)	$ 4,710
Adjustments
Depreciation, depletion and amortization	19,349	19,457	21,037
Dry hole expense	198	489	2,309
Distributions less than income from equity affiliates	(2,214)	(1,227)	(760)
Net before-tax gains on asset retirements and sales	(2,195)	(1,149)	(3,215)
Net foreign currency effects	131	186	(82)
Deferred income tax provision	(3,203)	(3,835)	(1,861)
Net decrease (increase) in operating working capital	476	(550)	(1,979)
Increase in long-term receivables	(368)	(131)	(59)
(Increase) decrease in other deferred charges	(199)	235	25
Cash contributions to employee pension plans	(980)	(870)	(868)
Other	251	672	199
Net Cash Provided by Operating Activities	20,515	12,846	19,456
Investing Activities
Capital expenditures	(13,404)	(18,109)	(29,504)
Proceeds and deposits related to asset sales	5,247	2,777	5,739
Net maturities of time deposits	0	0	8
Net sales of marketable securities	4	297	122
Net borrowing of loans by equity affiliates	(16)	(2,034)	(217)
Net (purchases) sales of other short-term investments	(32)	217	44
Net Cash Used for Investing Activities	(8,201)	(16,852)	(23,808)
Financing Activities
Net (repayments) borrowings of short-term obligations	(5,142)	2,130	(335)
Proceeds from issuances of long-term debt	3,991	6,924	11,091
Repayments of long-term debt and other financing obligations	(6,310)	(1,584)	(32)
Cash dividends - common stock	(8,132)	(8,032)	(7,992)
Distributions to noncontrolling interests	(78)	(63)	(128)
Net sales of treasury shares	1,117	650	211
Net Cash (Used for) Provided by Financing Activities	(14,554)	25	2,815
Effect of Exchange Rate Changes on Cash and Cash Equivalents	65	(53)	(226)
Net Change in Cash and Cash Equivalents	(2,175)	(4,034)	(1,763)
Cash and Cash Equivalents at January 1	6,988	11,022	12,785
Cash and Cash Equivalents at December 31	$ 4,813	$ 6,988	$ 11,022