CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) (USD $) In Millions	9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010
Cash flows from operating activities
Net income	$ 182	$ 788
Adjustments to reconcile net income to net cash from operating activities:
Depreciation, depletion and amortization	815	699
Ceiling test charges	152	16
Loss on deconsolidation of subsidiary (Note 15)	600
Deferred income tax expense (benefit)	(28)	339
Earnings from unconsolidated affiliates, adjusted for cash distributions	(50)	(115)
Loss on debt extinguishment	169	104
Other non-cash income items	(72)	(34)
Asset and liability changes	(151)	(385)
Net cash provided by operating activities	1,617	1,412
Cash flows from investing activities
Capital expenditures	(2,989)	(2,641)
Cash paid for acquisitions, net of cash acquired	(2)	(25)
Net proceeds from the sale of assets and investments	592	332
Increase in notes receivable	(115)	(23)
Other	(69)	37
Net cash used in investing activities	(2,583)	(2,320)
Cash flows from financing activities
Net proceeds from issuance of long-term debt	5,168	1,399
Payments to retire long-term debt and other financing obligations	(5,001)	(1,273)
Net proceeds from issuance of noncontrolling interests (Note 12)	948	956
Net proceeds from issuance of preferred stock of subsidiary	30	120
Dividends paid	(31)	(49)
Distributions to noncontrolling interest holders	(143)	(64)
Distributions to holders of preferred stock of subsidiary	(10)	(15)
Proceeds from stock option exercises	48	6
Other		2
Net cash provided by financing activities	1,009	1,082
Change in cash and cash equivalents	43	174
Cash and cash equivalents
Beginning of period	347	635
End of period	$ 390	$ 809