Consolidated Statement of Cash Flows (Unaudited) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
OPERATING ACTIVITIES:
Net income (loss)	$ 196	$ 230
Adjustments to reconcile to net cash provided (used) by operating activities:
Depreciation and amortization	214	201
Provision (benefit) for deferred income taxes	(96)	103
Amortization of stock-based awards	11	9
Cash provided (used) by changes in current assets and liabilities:
Accounts and notes receivable	16	(72)
Inventories	(27)	(13)
Other current assets and deferred charges	22	11
Accounts payable	(16)	6
Accrued liabilities	67	(25)
Other, including changes in noncurrent assets and liabilities	59	45
Net cash provided (used) by operating activities	446	495
FINANCING ACTIVITIES:
Proceeds from (payments of) commercial paper - net	(225)	0
Proceeds from long-term debt	1,496	770
Payments of long-term debt	0	(895)
Proceeds from issuance of common stock	14	7
Proceeds from sale of limited partner units of consolidated partnership	0	617
Dividends paid	(276)	(231)
Dividends and distributions paid to noncontrolling interests	(147)	(105)
Contributions from noncontrolling interests	63	2
Other - net	4	11
Net cash provided (used) by financing activities	929	176
INVESTING ACTIVITIES:
Capital expenditures	(793)	(713)
Purchases of and contributions to equity-method investments	(228)	(93)
Other - net	29	(2)
Net cash provided (used) by investing activities	(992)	(808)
Increase (decrease) in cash and cash equivalents	383	(137)
Cash and cash equivalents at beginning of period	681	839
Cash and cash equivalents at end of period	1,064	702
Increases to property, plant and equipment	(840)	(732)
Changes in related accounts payable and accrued liabilities	47	19
Capital expenditures	$ (793)	$ (713)