Businesses Held For Sale, Divestitures And Impairments (Narrative) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		3 Months Ended		3 Months Ended			3 Months Ended
	Mar. 31, 2012	Dec. 31, 2011	Mar. 31, 2012 Other Divestitures And Impairments [Member]	Jan. 04, 2011 KapStone [Member] Discontinued Operations [Member]	Mar. 31, 2011 Brazilian Coated Papers [Member] Discontinued Operations [Member]	Mar. 31, 2011 Inverurie Mill, Scotland [Member] Other Divestitures And Impairments [Member]	Mar. 31, 2012 Divestiture Mills [Member]	Mar. 31, 2012 Shorewood Divestiture [Member]	Dec. 31, 2011 Shorewood Divestiture [Member] Other Divestitures And Impairments [Member]	Mar. 31, 2012 Temple-Inland Building Products Business [Member]
Businesses Held for Sale, Divestitures and Impairments [Line Items]
Possible period sale of business can be accomplished, years	1
Cash received under earnout provision, before taxes				$ 50
Cash received under earnout provision, after taxes				30
Reversal of tax contingency reserves					15
Interest income on reversal of tax contingency reserve					6
Interest income on reversal of tax contingency reserve, after taxes					4
Number of 30-day extensions related to timeframes in which mills are required to be divested			2
Number of days of extensions of timeframes within which mills are required to be divested			30 days
Write down of long-lived assets, estimated fair value, before taxes						8
Write down of long-lived assets, estimated fair value, after taxes						8
Assets of businesses held for sale	668	196					187		196	481
Liabilities of businesses held for sale	52	43							43	52
Gain (loss) on sale of business, before tax								7
Gain (loss) on sale of business, after tax								$ 6