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INCOME TAXES (Tables)

12 Months Ended

Dec. 31, 2012

Income Tax Expense (Benefit) [Abstract]

Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block]



Domestic and Foreign Components of Income (Loss) Before Income Taxes
In millions	2012			2011			2010
Domestic	$	(95	)	$	303		$	611
Foreign	(2		)	(1		)	8
Total	$	(97	)	$	302		$	619

Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]



Provision for Income Taxes
				2012									2011									2010
In millions	Current			Deferred			Total			Current			Deferred			Total			Current			Deferred			Total
Federal	$	10		$	15		$	25		$	126		$	(41	)	$	85		$	237		$	(38	)	$	199
State and local	(5		)	(3		)	(8		)	(2		)	(2		)	(4		)	(42		)	(2		)	(44		)
Foreign	—			—			—			6			—			6			5			—			5
Total	$	5		$	12		$	17		$	130		$	(43	)	$	87		$	200		$	(40	)	$	160

Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]



Reconciliation to U.S. Statutory Rate
In millions	2012			2011			2010
Taxes at U.S. statutory rate	$	(34	)	$	106		$	216
Equity earnings effect (1)	2			—			—
U.S. business credits	—			(6		)	—
Benefit of dividend income from investments in related companies	(9		)	(2		)	(14		)
Unrecognized tax benefits	9			(1		)	(28		)
Miscellaneous U.S. permanent differences	(3		)	—			—
Impairment of investment in related company	46			—			—
Federal tax accrual adjustments (1)	(8		)	—			—
State and local tax impact	12			(7		)	(7		)
Other - net	2			(3		)	(7		)
Total tax provision	$	17		$	87		$	160
Effective tax rate	(17.5		)%	28.8		%	25.8		%


(1)	The amount for the noted reconciliation item is immaterial for 2011 and 2010 and has been included in the “Other - net” category.

Schedule of Deferred Tax Assets and Liabilities [Table Text Block]



Deferred Tax Balances at December 31 In millions	2012					2011
Deferred Tax Balances at December 31 In millions	Deferred Tax Assets			Deferred Tax Liabilities		Deferred Tax Assets			Deferred Tax Liabilities
Property	$	—		$	202	$	—		$	229
Tax loss and credit carryforwards	103			—		122			—
Postretirement benefit obligations	887			403		772			363
Other accruals and reserves	595			4		576			4
Inventory	10			1		9			—
Long-term debt	—			1		—			1
Investments	—			1		—			1
Other - net	28			46		26			48
Subtotal	$	1,623		$	658	$	1,505		$	646
Valuation allowances	(124		)	—		(121		)	—
Total	$	1,499		$	658	$	1,384		$	646

Schedule of Total Gross Unrecognized Tax Benefits [Table Text Block]



Total Gross Unrecognized Tax Benefits
In millions	2012			2011			2010
Balance at January 1	$	161		$	163		$	208
Decreases related to positions taken on items from prior years	—			(1		)	(18		)
Increases related to positions taken in current year	8			1			5
Settlement of uncertain tax positions with tax authorities	—			—			(8		)
Decreases due to expiration of statutes of limitations	(3		)	(2		)	(24		)
Balance at December 31	$	166		$	161		$	163

Schedule of Tax Years Subject to Examination by Major Tax Jurisdiction



Tax Years Subject to Examination by Major Tax Jurisdiction at December 31
Jurisdiction	Earliest Open Year
Jurisdiction	2012	2011
United States:
Federal income tax	2004	2004
State and local income tax	2004	2004

- Definition

Tabular disclosure of tax positions taken in the tax returns filed or to be filed for which it is more likely than not that the tax position will not be sustained upon examination by taxing authorities (i.e., uncertain tax positions) and other types of income tax contingencies, including: (1) the policy on classification of interest and penalties; (2) a tabular reconciliation of the total amounts of unrecognized tax benefits at the beginning and end of the period; the total amount(s) of: (3) unrecognized tax benefits that, if recognized, would affect the effective tax rate, and (4) interest and penalties recognized in each of the income statement and balance sheet; (5) for positions for which it is reasonably possible that the total amounts unrecognized will significantly change within 12 months of the reporting date the: (i) nature of the uncertainty, (ii) nature of the event that could occur that would cause the change, and (iii) an estimate of the range of the reasonably possible change or a statement that an estimate of the range cannot be made; and (6) a description of tax years that remain subject to examination by major tax jurisdictions.

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- Definition

Tabular disclosure of income tax examinations that an enterprise is currently subject to or that have been completed in the current period typically including a description of the examination, the jurisdiction conducting the examination, the tax year(s) under examination, the likelihood of an unfavorable settlement, the range of possible losses, the liability recorded, the increase or decrease in the liability from the prior period, and any penalties and interest that have been recorded.

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