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PROPERTY:
12 Months Ended
Dec. 31, 2011
PROPERTY:  
PROPERTY:

NOTE 6-PROPERTY:

 

 

 

As of December 31,

 

(in millions)

 

2011

 

2010

 

Buildings and equipment

 

$

6,871.1

 

$

6,703.8

 

Construction in progress

 

1,187.8

 

833.0

 

Mine development

 

301.4

 

301.3

 

Land, other than mineral

 

46.4

 

41.9

 

Total property

 

8,406.7

 

7,880.0

 

Accumulated depreciation, amortization and depletion

 

(3,986.8

)

(3,785.0

)

Total property, net

 

$

4,419.9

 

$

4,095.0

 

 

Depreciation and depletion expense for the years ended December 31, 2011, 2010 and 2009, amounted to $286.0 million, $279.6 million and $271.2 million, respectively.