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, 2013
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):
 
2013
 
2012
Vehicles
$
6,762

 
$
6,344

Aircraft
15,772

 
15,164

Land
1,163

 
1,122

Buildings
3,260

 
3,138

Building and leasehold improvements
3,116

 
3,049

Plant equipment
7,221

 
7,010

Technology equipment
1,569

 
1,675

Equipment under operating leases
44

 
69

Construction-in-progress
244

 
470

 
39,151

 
38,041

Less: Accumulated depreciation and amortization
(21,190
)
 
(20,147
)
 
$
17,961

 
$
17,894



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 may not be recoverable. In 2013, 2012 and 2011, there were no indicators of impairment in our property, plant and equipment, and no impairment charges were recorded in any period presented.