Consolidated Statements of Cash Flows (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Operating activities:
Net income	$ 1,753	$ 1,582	$ 2,946
Adjustments to reconcile net income to net cash provided by operating activities:
Discontinued operations	(160)	31	(1,228)
Loss on early extinguishment of debt	0	0	279
Deferred income taxes	(60)	(224)	(193)
Depreciation, depletion and amortization	2,790	2,477	2,263
Impairments	96	371	310
Pension and other postretirement benefits, net	45	(31)	64
Exploratory dry well costs and unproved property impairments	798	457	357
Net (gain) loss on disposal of assets	29	(127)	(103)
Equity method investments, net	12	11	47
Changes in:
Current receivables	277	(502)	9
Inventories	(16)	(32)	33
Current accounts payable and accrued liabilities	(616)	71	489
All other operating, net	143	(48)	168
Net cash provided by continuing operations	5,091	4,036	5,441
Net cash provided by (used in) discontinued operations	179	(19)	1,083
Net cash provided by operating activities	5,270	4,017	6,524
Investing activities:
Acquisitions, net of cash acquired	(74)	(1,033)	(4,470)
Additions to property, plant and equipment	(4,766)	(4,593)	(2,986)
Disposal of assets	450	467	518
Investments - return of capital	61	57	59
Investing activities of discontinued operations	(227)	(347)	(802)
All other investing, net	35	10	14
Net cash used in investing activities	(4,521)	(5,439)	(7,667)
Financing activities:
Commercial paper, net	(65)	200	0
Borrowings	0	1,997	0
Debt issuance costs	0	(21)	0
Debt repayments	(182)	(145)	(2,877)
Purchases of common stock	(500)	0	(300)
Dividends paid	(508)	(480)	(567)
Financing activities of discontinued operations	0	0	2,916
Distribution in spin-off	0	0	(1,622)
All other financing, net	93	49	155
Net cash provided by (used in) financing activities	(1,162)	1,600	(2,295)
Effect of exchange rate changes on cash	(7)	13	(20)
Net increase (decrease) in cash and cash equivalents	(420)	191	(3,458)
Cash and cash equivalents at beginning of period	684	493	3,951
Cash and cash equivalents at end of period	$ 264	$ 684	$ 493