Annual report pursuant to Section 13 and 15(d)

PROPERTY, PLANT AND EQUIPMENT

v3.8.0.1
PROPERTY, PLANT AND EQUIPMENT
 12 Months Ended
Dec. 31, 2017
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, 2017 and 2016 (in millions):
 
2017
 
2016
Vehicles
$
9,365

 
$
8,638

Aircraft
16,248

 
15,653

Land
1,582

 
1,397

Buildings
4,035

 
3,439

Building and leasehold improvements
3,934

 
3,612

Plant equipment
9,387

 
8,430

Technology equipment
1,907

 
1,741

Equipment under operating leases
29

 
29

Construction-in-progress
2,239

 
735

 
48,726

 
43,674

Less: Accumulated depreciation and amortization
(26,608
)
 
(24,874
)
 
$
22,118

 
$
18,800


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. No impairment charges on property, plant and equipment were recorded in 2017, 2016 or 2015.