Consolidated Statement of Cash Flows - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Operating Activities
Net Income		$ 4,710	$ 19,310	$ 21,597
Adjustments
Depreciation, depletion and amortization	[1],[2]	21,037	16,793	14,186
Dry hole expense		2,309	875	683
Distributions less than income from equity affiliates		(760)	(2,202)	(1,178)
Net before-tax gains on asset retirements and sales		(3,215)	(3,540)	(639)
Net foreign currency effects		(82)	(277)	(103)
Deferred income tax provision		(1,861)	1,572	1,876
Net increase in operating working capital		(1,979)	(540)	(1,331)
(Increase) decrease in long-term receivables		(59)	(9)	183
Decrease (increase) in other deferred charges		25	263	(321)
Cash contributions to employee pension plans		(868)	(392)	(1,194)
Other		199	(378)	1,243
Net Cash Provided by Operating Activities		19,456	31,475	35,002
Investing Activities
Capital expenditures		(29,504)	(35,407)	(37,985)
Proceeds and deposits related to asset sales		5,739	5,729	1,143
Net maturities of time deposits		8	0	700
Net sales (purchases) of marketable securities		122	(148)	3
Net (borrowing) repayment of loans by equity affiliates		(217)	140	314
Net sales (purchases) of other short-term investments		44	(207)	216
Net Cash Used for Investing Activities		(23,808)	(29,893)	(35,609)
Financing Activities
Net (repayments) borrowings of short-term obligations		(335)	3,431	2,378
Proceeds from issuances of long-term debt		11,091	4,000	6,000
Repayments of long-term debt and other financing obligations		(32)	(43)	(132)
Cash dividends - common stock		(7,992)	(7,928)	(7,474)
Distributions to noncontrolling interests		(128)	(47)	(99)
Net sales (purchases) of treasury shares		211	(4,412)	(4,494)
Net Cash Provided by (Used for) Financing Activities		2,815	(4,999)	(3,821)
Effect of Exchange Rate Changes on Cash and Cash Equivalents		(226)	(43)	(266)
Net Change in Cash and Cash Equivalents		(1,763)	(3,460)	(4,694)
Cash and Cash Equivalents at January 1		12,785	16,245	20,939
Cash and Cash Equivalents at December 31		$ 11,022	$ 12,785	$ 16,245

[1] Depreciation expense includes accretion expense of $715, $882 and $627 in 2015, 2014 and 2013, respectively

[2] Other than the United States, Australia and Nigeria, no other country accounted for 10 percent or more of the company’s net properties, plant and equipment (PP&E) in 2015. Australia had $49,205, $41,012 and $31,464 in 2015, 2014, and 2013, respectively. Nigeria had PP&E of $18,773, $19,214 and $18,429 for 2015, 2014 and 2013, respectively.