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Property and Equipment, Net
 12 Months Ended
Dec. 31, 2014
Property, Plant and Equipment [Abstract]  
Property and Equipment, Net
PROPERTY AND EQUIPMENT, NET
A summary of property and equipment as of December 31 follows:
 
2014
 
2013
Land
$
401.3

 
$
377.6

Non-depletable landfill land
162.2

 
164.2

Landfill development costs
5,645.3

 
5,392.7

Vehicles and equipment
5,834.1

 
5,403.7

Buildings and improvements
1,002.3

 
935.6

Construction-in-progress - landfill
140.8

 
72.5

Construction-in-progress - other
10.1

 
13.3

 
$
13,196.1

 
$
12,359.6

Less: accumulated depreciation, depletion and amortization
 
 
 
Landfill development costs
$
(2,437.4
)
 
$
(2,160.2
)
Vehicles and equipment
(3,273.3
)
 
(2,883.8
)
Buildings and improvements
(320.1
)
 
(278.8
)
 
(6,030.8
)
 
(5,322.8
)
Property and equipment, net
$
7,165.3

 
$
7,036.8


Depreciation, amortization and depletion of property and equipment was $838.5 million, $806.7 million and $778.4 million for the years ended December 31, 2014, 2013 and 2012, respectively.