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PROPERTY:
12 Months Ended
Dec. 31, 2024
PROPERTY:  
PROPERTY:

NOTE 5—PROPERTY:

At December 31, 

(in millions)

    

2024

    

2023

Buildings and equipment

$

18,013.5

$

17,439.3

Construction in progress

 

1,579.1

 

1,664.8

Mine development

 

348.8

 

320.7

Mineral assets

83.2

83.2

Land, other than mineral

 

340.1

 

277.5

Total property

 

20,364.7

 

19,785.5

Accumulated depreciation, amortization and depletion

 

(10,481.4)

 

(10,002.6)

Total property and mine development, net

$

9,883.3

$

9,782.9

Depreciation and depletion expense for the years ended December 31, 2024, 2023 and 2022 totaled $836.8 million, $825.7 million and $790.3 million, respectively.