Property, Plant and Equipment (Schedule of Property, Plant and Equipment) (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Property, Plant and Equipment [Line Items]
Land and improvements	$ 546,234	$ 515,674
Buildings and improvements	899,944	841,179
Machinery and equipment	8,160,140	7,727,630
Construction in process and equipment deposits	832,255	396,614
Property, plant and equipment, gross	10,438,573	9,481,097
Less accumulated depreciation	(6,155,517)	(5,725,493)
Property, plant and equipment, net, total	$ 4,283,056	$ 3,755,604

The cumulative amount of depreciation, depletion and amortization (related to property, plant and equipment, but not including land) that has been recognized in the income statement.

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Gross amount of long-lived physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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- Definition

Amount, net of accumulated depreciation, depletion and amortization, of long-lived physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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