Sales by Industry Segment (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Segment Reporting Information [Line Items]
Net Sales	$ 7,026	$ 6,632	$ 20,758	$ 19,667
Industrial Packaging
Segment Reporting Information [Line Items]
Net Sales	3,335	2,660	9,900	7,920
Printing Papers
Segment Reporting Information [Line Items]
Net Sales	1,580	1,550	4,650	4,665
Consumer Packaging
Segment Reporting Information [Line Items]
Net Sales	765	955	2,355	2,805
Distribution
Segment Reporting Information [Line Items]
Net Sales	1,535	1,710	4,510	5,005
Corporate and Intersegment Sales
Segment Reporting Information [Line Items]
Net Sales	$ (189)	$ (243)	$ (657)	$ (728)