Consolidated Statement of Cash Flows (Unaudited) (USD $) In Millions, unless otherwise specified	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014
OPERATING ACTIVITIES:
Net income (loss)	$ 13us-gaap_ProfitLoss	$ 196us-gaap_ProfitLoss
Adjustments to reconcile to net cash provided (used) by operating activities:
Depreciation and amortization	427	214
Provision (benefit) for deferred income taxes	28	(96)
Amortization of stock-based awards	23us-gaap_ShareBasedCompensation	11us-gaap_ShareBasedCompensation
Cash provided (used) by changes in current assets and liabilities:
Accounts and notes receivable	300	16
Inventories	32us-gaap_IncreaseDecreaseInInventories	(27)us-gaap_IncreaseDecreaseInInventories
Other current assets and deferred charges	9	22
Accounts payable	(75)	(16)
Accrued liabilities	(106)	67
Other, including changes in noncurrent assets and liabilities	18	59
Net cash provided (used) by operating activities	669	446
FINANCING ACTIVITIES:
Proceeds from (payments of) commercial paper - net	(799)	(225)
Proceeds from long-term debt	5,255	1,496
Payments of long-term debt	(3,648)us-gaap_RepaymentsOfLongTermDebt	0us-gaap_RepaymentsOfLongTermDebt
Proceeds from issuance of common stock	10	14
Dividends paid	(434)us-gaap_PaymentsOfDividendsCommonStock	(276)us-gaap_PaymentsOfDividendsCommonStock
Dividends and distributions paid to noncontrolling interests	(228)	(147)
Contributions from noncontrolling interests	26	63
Payments for debt issuance costs	(27)us-gaap_PaymentsOfDebtIssuanceCosts	(11)us-gaap_PaymentsOfDebtIssuanceCosts
Other - net	33	15
Net cash provided (used) by financing activities	188	929
INVESTING ACTIVITIES:
Capital expenditures	(832)	(793)
Net proceeds from dispositions	0	6
Purchases of and contributions to equity-method investments	(83)	(228)
Other - net	159	23
Net cash provided (used) by investing activities	(756)	(992)
Increase (decrease) in cash and cash equivalents	101	383
Cash and cash equivalents at beginning of year	240	681
Cash and cash equivalents at end of period	341	1,064
Increases to property, plant, and equipment	(738)	(840)
Changes in related accounts payable and accrued liabilities	(94)	47
Capital expenditures	$ (832)	$ (793)

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Period Type:	duration