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Property, Plant and Equipment
12 Months Ended
Dec. 31, 2012
Property, Plant and Equipment [Abstract]  
Property, Plant and Equipment
Property, Plant and Equipment
Property, plant and equipment consist of (table in thousands):
 
December 31,
2012
 
December 31,
2011
Furniture and fixtures
$
197,429

 
$
180,800

Equipment and software
5,345,314

 
4,680,118

Buildings and improvements
1,872,559

 
1,748,214

Land
120,654

 
117,513

Building construction in progress
196,891

 
146,650

 
7,732,847

 
6,873,295

Accumulated depreciation
(4,588,299
)
 
(4,040,146
)
 
$
3,144,548

 
$
2,833,149


Depreciation expense was $780.3 million, $727.9 million and $595.3 million in 2012, 2011 and 2010, respectively. Building construction in progress at December 31, 2012 includes $74.0 million for facilities not yet placed in service that we are holding for future use.