CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Millions, unless otherwise specified	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014
CASH FLOWS FROM OPERATING ACTIVITIES [Abstract]
Net loss	$ (81)us-gaap_ProfitLoss	$ (37)us-gaap_ProfitLoss
Adjustments to reconcile net loss to net cash flows from operating activities:
Depreciation and amortization	514	505
Noncash interest expense	8	10
Loss on derivative instruments, net	6	2
Deferred income taxes	34us-gaap_DeferredIncomeTaxExpenseBenefit	62us-gaap_DeferredIncomeTaxExpenseBenefit
Other, net	22us-gaap_OtherNoncashIncomeExpense	15us-gaap_OtherNoncashIncomeExpense
Changes in operating assets and liabilities, net of effects from acquisitions:
Accounts receivable	21	18
Prepaid expenses and other assets	(26)	(17)
Accounts payable, accrued liabilities and other	30	19
Net cash flows from operating activities	528	577
CASH FLOWS FROM INVESTING ACTIVITIES [Abstract]
Purchases of property, plant and equipment	(351)	(539)
Change in accrued expenses related to capital expenditures	(76)	36
Restricted cash in escrow	(1)	0
Other, net	(13)	4
Net cash flows from investing activities	(441)	(499)
CASH FLOWS FROM FINANCING ACTIVITIES [Abstract]
Borrowings of long-term debt	332	293
Repayments of long-term debt	(392)us-gaap_RepaymentsOfLongTermDebt	(388)us-gaap_RepaymentsOfLongTermDebt
Purchase of treasury stock	(16)	(11)
Proceeds from exercise of options and warrants	6us-gaap_ProceedsFromOtherEquity	6us-gaap_ProceedsFromOtherEquity
Other, net	0	5
Net cash flows from financing activities	(70)	(95)
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	17	(17)
CASH AND CASH EQUIVALENTS, beginning of period	3	21
CASH AND CASH EQUIVALENTS, end of period	20	4
Cash Paid for Interest	$ 255us-gaap_InterestPaidNet	$ 225us-gaap_InterestPaidNet

The increase (decrease) during the reporting period in the amounts payable for capital expenditures.

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Amount of noncash expense included in interest expense to allocate debt discount and premium, and the costs to issue debt and obtain financing over the related debt instruments. Alternate captions include noncash interest expense.

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Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

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Amount of increase (decrease) in cash and cash equivalents. Cash and cash equivalents are the amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Includes effect from exchange rate changes.

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Amount of deferred income tax expense (benefit) pertaining to income (loss) from continuing operations.

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The aggregate net amount of depreciation, amortization, and accretion recognized during an accounting period. As a noncash item, the net amount is added back to net income when calculating cash provided by or used in operations using the indirect method.

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Amount of realized and unrealized gain (loss) of derivative instruments not designated or qualifying as hedging instruments.

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The increase (decrease) during the reporting period in the amounts payable to vendors for goods and services received and the amount of obligations and expenses incurred but not paid.

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The increase (decrease) during the reporting period in amount due within one year (or one business cycle) from customers for the credit sale of goods and services.

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The increase (decrease) during the reporting period in the value of prepaid expenses and other assets not separately disclosed in the statement of cash flows, for example, deferred expenses, intangible assets, or income taxes.

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The net cash inflow or outflow for the increase (decrease) associated with funds that are not available for withdrawal or use (such as funds held in escrow) and are associated with underlying transactions that are classified as investing activities.

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The amount of cash paid for interest during the period net of cash paid for interest that is capitalized.

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Amount of cash inflow (outflow) from financing activities, including discontinued operations. Financing activity cash flows include obtaining resources from owners and providing them with a return on, and a return of, their investment; borrowing money and repaying amounts borrowed, or settling the obligation; and obtaining and paying for other resources obtained from creditors on long-term credit.

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Amount of cash inflow (outflow) from investing activities, including discontinued operations. Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets.

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Amount of cash inflow (outflow) from operating activities, including discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities.

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Other income (expense) included in net income that results in no cash inflows or outflows in the period. Includes noncash adjustments to reconcile net income (loss) to cash provided by (used in) operating activities that are not separately disclosed.

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The net cash outflow or inflow from other investing activities. This element is used when there is not a more specific and appropriate element in the taxonomy.

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The cash outflow to reacquire common stock during the period.

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The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets.

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The cash inflow from a debt initially having maturity due after one year or beyond the operating cycle, if longer.

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The cash inflow from other equity not otherwise defined in the taxonomy.

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The net cash inflow or outflow from other financing activities. This element is used when there is not a more specific and appropriate element in the taxonomy.

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The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest.

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The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer.

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