Quarterly report pursuant to Section 13 or 15(d)

PROPERTY, PLANT AND EQUIPMENT (Details)

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PROPERTY, PLANT AND EQUIPMENT (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Dec. 31, 2020
Property, Plant and Equipment [Line Items]          
Total property, plant and equipment $ 11,101   $ 11,101   $ 10,217
Allowance for depreciation and depletion (2,127)   (2,127)   (1,474)
Property, plant and equipment, net 8,974   8,974   8,743
Finance lease, right-of-use asset 396   396   361
Depreciation and depletion expense 238 $ 72 661 $ 183  
Land, land improvements and mineral rights          
Property, Plant and Equipment [Line Items]          
Total property, plant and equipment 1,285   1,285   1,213
Buildings          
Property, Plant and Equipment [Line Items]          
Total property, plant and equipment 852   852   703
Equipment          
Property, Plant and Equipment [Line Items]          
Total property, plant and equipment 8,334   8,334   6,786
Other          
Property, Plant and Equipment [Line Items]          
Total property, plant and equipment 213   213   151
Construction in progress          
Property, Plant and Equipment [Line Items]          
Total property, plant and equipment $ 417   $ 417   $ 1,364