Property, plant and equipment

12 Months Ended

Dec. 31, 2013

Property, Plant and Equipment [Abstract]

Property, plant and equipment consisted of the following as of December 31, 2013 and 2012 (dollar amounts in millions):



	Useful life (in years)	2013			2012
Land	—	$	408		$	412
Buildings and improvements	10-40	3,467			3,510
Manufacturing equipment	8-12	2,024			2,007
Laboratory equipment	8-12	1,165			1,056
Other	3-15	4,107			3,891
Construction in progress	—	1,120			1,071
Property, plant and equipment, gross		12,291			11,947
Less accumulated depreciation and amortization		(6,942		)	(6,621		)
Property, plant and equipment, net		$	5,349		$	5,326

During the years ended December 31, 2013, 2012 and 2011, we recognized depreciation and amortization charges associated with our property, plant and equipment of $644 million, $689 million and $679 million, respectively.

- Definition

The entire disclosure for long-lived, physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, accounting policies and methodology, roll forwards, depreciation, depletion and amortization expense, including composite depreciation, accumulated depreciation, depletion and amortization expense, useful lives and method used, income statement disclosures, assets held for sale and public utility disclosures.

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