Financial Information By Industry Segment And Geographic Area (Information By Industry Segment, External Sales By Major Product) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2012		Dec. 31, 2011		Dec. 31, 2010
Segment Reporting Information [Line Items]
External Sales By Major Product - Net Sales	$ 7,075	$ 7,026	$ 7,077	$ 6,655	$ 6,367	$ 6,632	$ 6,648	$ 6,387	$ 27,833	[1]	$ 26,034	[1]	$ 25,179	[1]
Industrial Packaging [Member]
Segment Reporting Information [Line Items]
External Sales By Major Product - Net Sales									13,280		10,430		9,840
Printing Papers [Member]
Segment Reporting Information [Line Items]
External Sales By Major Product - Net Sales									6,230		6,215		5,940
Consumer Packaging [Member]
Segment Reporting Information [Line Items]
External Sales By Major Product - Net Sales									3,170		3,710		3,400
Distribution [Member]
Segment Reporting Information [Line Items]
External Sales By Major Product - Net Sales									6,040		6,630		6,735
Forest Products [Member]
Segment Reporting Information [Line Items]
External Sales By Major Product - Net Sales									0		0		220
External Sales By Major Product [Member]
Segment Reporting Information [Line Items]
External Sales By Major Product - Net Sales									27,833		26,034		25,179
External Sales By Major Product [Member] | Industrial Packaging [Member]
Segment Reporting Information [Line Items]
External Sales By Major Product - Net Sales									13,223		10,376		9,812
External Sales By Major Product [Member] | Printing Papers [Member]
Segment Reporting Information [Line Items]
External Sales By Major Product - Net Sales									5,483		5,510		5,220
External Sales By Major Product [Member] | Consumer Packaging [Member]
Segment Reporting Information [Line Items]
External Sales By Major Product - Net Sales									3,146		3,577		3,241
External Sales By Major Product [Member] | Distribution [Member]
Segment Reporting Information [Line Items]
External Sales By Major Product - Net Sales									5,981		6,571		6,683
External Sales By Major Product [Member] | Forest Products [Member]
Segment Reporting Information [Line Items]
External Sales By Major Product - Net Sales									$ 0		$ 0		$ 223

[1] Net sales are attributed to countries based on the location of the seller.