Property, Plant and Equipment (Summary Of Property, Plant And Equipment) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Property, Plant and Equipment [Line Items]
Property, plant and equipment, at cost	$ 6,243,775	$ 5,783,257
Less accumulated depreciation and amortization	2,873,427	2,636,139
Net property, plant and equipment	3,370,348	3,147,118
Land
Property, Plant and Equipment [Line Items]
Property, plant and equipment, at cost	288,633	305,943
Buildings and improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment, at cost	1,189,408	1,120,193
Machinery and equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, at cost	3,979,349	3,750,787
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Property, plant and equipment, at cost	236,183	133,857
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment, at cost	77,976	68,977
Construction in progress
Property, Plant and Equipment [Line Items]
Property, plant and equipment, at cost	$ 472,226	$ 403,500