Consolidated Statement of Cash Flows (Unaudited) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Operating Activities
Net Income	$ 6,239	$ 6,499
Adjustments
Depreciation, depletion and amortization	3,481	3,205
Dry hole expense	12	242
Distributions less than income from equity affiliates	(578)	(178)
Net before-tax gains on asset retirements and sales	(27)	(122)
Net foreign currency effects	(109)	142
Deferred income tax provision	127	491
Net increase in operating working capital	(3,360)	(2,795)
Increase in long-term receivables	(66)	(15)
(Increase) decrease in other deferred charges	(111)	83
Cash contributions to employee pension plans	(238)	(345)
Other	344	1,180
Net Cash Provided by Operating Activities	5,714	8,387
Investing Activities
Capital expenditures	(8,192)	(5,895)
Proceeds and deposits related to asset sales	76	428
Net (purchases) sales of time deposits	(700)	3,300
Net sales of marketable securities	0	11
Repayment of loans by equity affiliates	1	0
Net sales of other short-term investments	356	183
Net Cash Used for Investing Activities	(8,459)	(1,973)
Financing Activities
Net borrowings of short-term obligations	2,069	(852)
Repayments of long-term debt and other financing obligations	(102)	(15)
Cash dividends — common stock	(1,735)	(1,590)
Distributions to noncontrolling interests	(10)	(8)
Net purchases of treasury shares	(1,027)	(996)
Net Cash Used for Financing Activities	(805)	(3,461)
Effect of Exchange Rate Changes on Cash and Cash Equivalents	(15)	54
Net Change in Cash and Cash Equivalents	(3,565)	3,007
Cash and Cash Equivalents at January 1	20,939	15,864
Cash and Cash Equivalents at March 31	$ 17,374	$ 18,871