CONSOLIDATED CONDENSED STATEMENTS OF CASH FLOWS (USD $) In Millions, unless otherwise specified	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011
CASH FLOW FROM OPERATING ACTIVITIES
Net income	$ 2,887	$ 3,366
Adjustments to reconcile net income to net cash provided by operating activities:
Discontinued operations, net	5	(142)
Depreciation, depletion and amortization of assets	2,172	1,729
Deferred income tax provision	794	517
Other noncash charges to income	110	205
Gains on disposition of assets, net	(1)	(22)
Undistributed earnings from equity investments	(8)	(25)
Dry hole and impairment expense	166	94
Changes in operating assets and liabilities, net	16	(125)
Other operating, net	(166)	(25)
Operating cash flow from continuing operations	5,975	5,572
Operating cash flow from discontinued operations, net of taxes	(17)	(8)
Net cash provided by operating activities	5,958	5,564
CASH FLOW FROM INVESTING ACTIVITIES
Capital expenditures	(5,125)	(2,958)
Payments for purchases of assets and businesses	(1,081)	(3,905)
Sales of assets, net	5	45
Other, net	39	(43)
Investing cash flow from continuing operations	(6,162)	(6,861)
Investing cash flow from discontinued operations		2,570
Net cash used by investing activities	(6,162)	(4,291)
CASH FLOW FROM FINANCING ACTIVITIES
Proceeds from long-term debt	1,736
Proceeds from short-term borrowings, net		500
Payments of long-term debt		(1,523)
Proceeds from issuance of common stock	58	5
Purchases of treasury stock	(152)	(43)
Distributions to noncontrolling interest		(121)
Cash dividends paid	(813)	(685)
Other, net	4	10
Net cash provided (used) by financing activities	833	(1,857)
Increase (decrease) in cash and cash equivalents	629	(584)
Cash and cash equivalents-beginning of period	3,781	2,578
Cash and cash equivalents-end of period	$ 4,410	$ 1,994