Annual report pursuant to Section 13 and 15(d)

PROPERTY, PLANT AND EQUIPMENT

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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, including both owned assets as well as assets subject to capital leases, consists of the following as of December 31 (in millions):
 
2012
 
2011
Vehicles
$
6,344

 
$
5,981

Aircraft
15,164

 
14,616

Land
1,122

 
1,114

Buildings
3,138

 
3,095

Building and leasehold improvements
3,049

 
2,943

Plant equipment
7,010

 
6,803

Technology equipment
1,675

 
1,593

Equipment under operating leases
69

 
93

Construction-in-progress
470

 
303

 
38,041

 
36,541

Less: Accumulated depreciation and amortization
(20,147
)
 
(18,920
)
 
$
17,894

 
$
17,621



We continually monitor our aircraft fleet utilization in light of current and projected volume levels, aircraft fuel prices and other factors. Additionally, we monitor our other property, plant and equipment categories for any indicators that the carrying value of the assets exceed the fair value. In 2012, 2011 and 2010, there were no indicators of impairment in our property, plant and equipment, and no impairment charges were recorded in any period.