Consolidated Statement of Cash Flows (Unaudited) (USD $) In Millions	9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010
OPERATING ACTIVITIES:
Net income (loss)	$ 1,023	$ (1,150)
Adjustments to reconcile to net cash provided by operating activities:
Depreciation, depletion and amortization	1,202	1,101
Provision (benefit) for deferred income taxes	77	(190)
Provision for loss on investments, property and other assets	130	1,720
Amortization of stock-based awards	36	37
Early debt retirement costs	0	606
Cash provided (used) by changes in current assets and liabilities:
Accounts and notes receivable	(180)	92
Inventories	15	(49)
Margin deposits and customer margin deposits payable	(26)	6
Other current assets and deferred charges	(1)	5
Accounts payable	165	(72)
Accrued liabilities	(67)	(94)
Changes in current and noncurrent derivative assets and liabilities	11	(30)
Other, including changes in noncurrent assets and liabilities	(33)	(41)
Net cash provided by operating activities	2,352	1,941
FINANCING ACTIVITIES:
Proceeds from long-term debt	1,100	4,179
Payments of long-term debt	(824)	(3,953)
Proceeds from sale of limited partner units of consolidated partnership	0	380
Dividends paid	(309)	(210)
Dividends and distributions paid to noncontrolling interests	(159)	(99)
Payments for debt issuance costs	(24)	(66)
Premiums paid on early debt retirements	0	(574)
Other - net	53	22
Net cash used by financing activities	(163)	(321)
INVESTING ACTIVITIES:
Capital expenditures	(1,833)	(2,111)
Purchases of business and investments/advances to affiliates	(214)	(459)
Other - net	59	98
Net cash used by investing activities	(1,988)	(2,472)
Increase (decrease) in cash and cash equivalents	201	(852)
Cash and cash equivalents at beginning of period	795	1,867
Cash and cash equivalents at end of period	996	1,015
Increases to property, plant and equipment	(1,914)	(2,072)
Changes in related accounts payable and accrued liabilities	81	(39)
Capital expenditures	$ (1,833)	$ (2,111)