Consolidated Statements of Cash Flows (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Operating activities:
Net income	$ 1,149	$ 383
Adjustments to reconcile net income to net cash provided by operating activities:
Discontinued operations	(609)	(3)
Deferred income taxes	105	45
Depreciation, depletion and amortization	697	720
Impairments	17	38
Pension and other postretirement benefits, net	21	7
Exploratory dry well costs and unproved property impairments	43	404
Net gain on disposal of assets	(2)	(109)
Equity method investments, net	(43)	(48)
Changes in:
Current receivables, changes in	(46)	39
Inventories, changes in	(41)	(17)
Current accounts payable and accrued liabilities, changes in	129	(71)
All other operating, net	(28)	115
Net cash provided by continuing operations	1,392	1,503
Net cash provided by discontinued operations	78	25
Net cash provided by operating activities	1,470	1,528
Investing activities:
Additions to property, plant and equipment	(1,051)	(1,321)
Disposal of assets	2,123	312
Investments - return of capital	20	18
Investing activities of discontinued operations	(49)	(54)
All other investing, net	5	8
Net Cash Provided by (Used in) Investing Activities	1,048	(1,037)
Financing activities:
Commercial paper, net	(135)	(200)
Debt repayments	0	(114)
Purchases of common stock	(551)	0
Dividends paid	(133)	(120)
All other financing, net	9	21
Net Cash Provided by (Used in) Financing Activities	(810)	(413)
Effect of exchange rate changes on cash	(8)	6
Net increase in cash and cash equivalents	1,700	84
Cash and cash equivalents at beginning of period	264	684
Cash and cash equivalents at end of period	$ 1,964	$ 768