Restructuring and Other Charges (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges	$ 59	$ 34
Restructuring and other charges, after tax	36	23
Early debt extinguishment costs
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges	6	16
Restructuring and other charges, after tax	4	10
XPEDX restructuring
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges	7	19
Restructuring and other charges, after tax	4	14
Augusta mill paper machine shutdown
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges	44
Restructuring and other charges, after tax	27
Other
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges	2	(1)
Restructuring and other charges, after tax	$ 1	$ (1)