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Subsequent Events	12 Months Ended
	Dec. 31, 2011
Subsequent Events [Abstract]
Subsequent Events	20. SUBSEQUENT EVENTS The Company has disclosed the following subsequent event in accordance with ASC 855, "Subsequent Events." Subsequent events have been evaluated through the filing date of this Form 10-K. • On February 3, 2012, PCA amended its 2009 tax return to reflect a change in claimed gallons between the alternative fuel mixture credits and the cellulosic biofuel producer credits. This change is expected to result in a first quarter 2012 non-cash, after-tax charge of $23 million.

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The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business.

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