Financial Information By Industry Segment And Geographic Area (Information By Geographic Area, Long-Lived Assets) (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2012		Dec. 31, 2011
Segment Reporting Information [Line Items]
Assets, Noncurrent	$ 14,571	[1]	$ 12,477	[1]
United States [Member]
Segment Reporting Information [Line Items]
Assets, Noncurrent	10,484		8,536
Europe [Member]
Segment Reporting Information [Line Items]
Assets, Noncurrent	1,022		936
Pacific Rim And Asia [Member]
Segment Reporting Information [Line Items]
Assets, Noncurrent	982		855
Americas, Other Than U.S. [Member]
Segment Reporting Information [Line Items]
Assets, Noncurrent	1,773		1,871
Corporate [Member]
Segment Reporting Information [Line Items]
Assets, Noncurrent	$ 310		$ 279

[1] Long-Lived Assets includes Forestlands and Plants, Properties and Equipment, net.