Property, Plant And Equipment, Net

12 Months Ended

Dec. 31, 2012

Property, Plant and Equipment [Abstract]

PROPERTY, PLANT AND EQUIPMENT, NET

Property, plant and equipment (PP&E) are carried at historical cost, net of accumulated depreciation. The major classes of property, plant and equipment were as follows:



December 31	2011			2012
Machinery and equipment	$	3,712		$	3,966
Buildings and improvements	2,172			2,442
Land and improvements	321			340
Construction in process	313			255
Total property, plant and equipment	6,518			7,003
Accumulated depreciation	(3,234		)	(3,600		)
Property, plant and equipment, net	$	3,284		$	3,403

We depreciate most of our assets using the straight-line method and the remainder using accelerated methods. Buildings and improvements are depreciated over periods up to 50 years. Machinery and equipment are depreciated over periods up to 30 years. Our government customers provide certain facilities and as such, we do not include these facilities above.

- Definition

The entire disclosure for long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale. Examples include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software. This disclosure may include property plant and equipment accounting policies and methodology, a schedule of property, plant and equipment gross, additions, deletions, transfers and other changes, depreciation, depletion and amortization expense, net, accumulated depreciation, depletion and amortization expense and useful lives, income statement disclosures, assets held for sale and public utility disclosures.

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