Consolidated Statement of Cash Flows (Unaudited) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Operating Activities
Net Income	$ 6,499	$ 6,239
Adjustments
Depreciation, depletion and amortization	3,205	3,126
Dry hole expense	242	2
Distributions (less) more than income from equity affiliates	(178)	201
Net before-tax gains on asset retirements and sales	(122)	(141)
Net foreign currency effects	142	57
Deferred income tax provision	491	73
Net (increase) decrease in operating working capital	(2,795)	110
(Increase) decrease in long-term receivables	(15)	7
Decrease in other deferred charges	83	34
Cash contributions to employee pension plans	(345)	(171)
Other	1,180	277
Net Cash Provided by Operating Activities	8,387	9,814
Investing Activities
Acquisition of Atlas Energy		(3,014)
Advance to Atlas Energy		(403)
Capital expenditures	(5,895)	(4,645)
Proceeds and deposits related to asset sales	428	284
Net sales (purchases) of time deposits	3,300	(725)
Sales of marketable securities	11	22
Net sales of other short-term investments	183	134
Net Cash Used for Investing Activities	(1,973)	(8,347)
Financing Activities
Net (payments) borrowings of short-term obligations	(852)	151
Repayments of long-term debt and other financing obligations	(15)	(1,069)
Cash dividends - common stock	(1,590)	(1,436)
Distributions to noncontrolling interests	(8)	(13)
Net purchases of treasury shares	(996)	(58)
Net Cash Used for Financing Activities	(3,461)	(2,425)
Effect of Exchange Rate Changes on Cash and Cash Equivalents	54	47
Net Change in Cash and Cash Equivalents	3,007	(911)
Cash and Cash Equivalents at January 1	15,864	14,060
Cash and Cash Equivalents at March 31	$ 18,871	$ 13,149