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Property, Plant and Equipment
6 Months Ended
Jun. 30, 2013
Property, Plant and Equipment [Abstract]  
Property, Plant and Equipment
Property, Plant and Equipment

(in millions)
June 30,
2013
 
December 31,
2012
Land, buildings and improvements
$
249

 
$
255

Machinery and equipment
651

 
653

Equipment held for lease or rental
184

 
183

Furniture and fixtures
86

 
90

Construction work in progress
49

 
40

Other
21

 
19

Total property, plant and equipment, gross
1,240

 
1,240

Less accumulated depreciation
770

 
753

Total property, plant and equipment, net
$
470

 
$
487


Depreciation expense of $24 million and $49 million was recognized during the three and six months ended June 30, 2013, respectively, and $21 million and $44 million for the three and six months ended June 30, 2012, respectively.