Quarterly report pursuant to Section 13 or 15(d)

PROPERTY, PLANT AND EQUIPMENT (Notes)

v3.20.2
PROPERTY, PLANT AND EQUIPMENT (Notes)
 9 Months Ended
Sep. 30, 2020
Property, Plant and Equipment [Abstract]  
PROPERTY, PLANT AND EQUIPMENT The following table indicates the carrying value of each of the major classes of our depreciable assets:
(In Millions)
September 30,
2020		 December 31,
2019
Land, land improvements and mineral rights $ 653.2  $ 582.2 
Buildings 454.4  157.8 
Steel and Manufacturing equipment 2,128.0  42.0 
Mining and Pelletizing equipment 1,455.2  1,413.6 
Other 121.3  101.5 
Construction-in-progress 1,145.9  730.3 
Total property, plant and equipment1
5,958.0  3,027.4 
Allowance for depreciation and depletion (1,407.3) (1,098.4)
Property, plant and equipment, net $ 4,550.7  $ 1,929.0 
1 Includes right-of-use assets related to finance leases of $97.1 million and $49.0 million as of September 30, 2020 and December 31, 2019, respectively.
    We recorded capitalized interest into property, plant and equipment of $14.7 million and $38.0 million during the three and nine months ended September 30, 2020, respectively, and $7.0 million and $16.9 million for the three and nine months ended September 30, 2019, respectively.
    We recorded depreciation and depletion expense of $71.8 million and $182.5 million for the three and nine months ended September 30, 2020, respectively, and $22.0 million and $62.5 million for the three and nine months ended September 30, 2019, respectively.