Property, Plant And Equipment (Summary Of Property, Plant And Equipment) (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Property, Plant and Equipment [Abstract]
Buildings and improvements	$ 923	$ 806
Machinery and equipment	4,576	4,195
Land and improvements	140	136
Construction in progress	185	211
Property, plant and equipment, gross	5,824	5,348
Less: accumulated depreciation and amortization	(3,829)	(3,597)
Property, plant and equipment, net	$ 1,995	$ 1,751