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Quarterly report pursuant to Section 13 or 15(d)

PROPERTY, PLANT AND EQUIPMENT (Details)

v3.23.1
PROPERTY, PLANT AND EQUIPMENT (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2023
Mar. 31, 2022
Dec. 31, 2022
Property, Plant and Equipment [Line Items] 听 听 听
Total property, plant and equipment $ 12,500 听 $ 12,388
Allowance for depreciation and depletion (3,550) 听 (3,318)
Property, plant and equipment, net 8,950 听 9,070
Finance lease, right-of-use asset 424 听 408
Depreciation and depletion expense 239 $ 298 听
Indiana Harbor 听 听 听
Property, Plant and Equipment [Line Items] 听 听 听
Accelerated depreciation 听 $ 68 听
Land, land improvements and mineral rights 听 听 听
Property, Plant and Equipment [Line Items] 听 听 听
Total property, plant and equipment 1,390 听 1,388
Buildings 听 听 听
Property, Plant and Equipment [Line Items] 听 听 听
Total property, plant and equipment 927 听 921
Equipment 听 听 听
Property, Plant and Equipment [Line Items] 听 听 听
Total property, plant and equipment 9,359 听 9,289
Other 听 听 听
Property, Plant and Equipment [Line Items] 听 听 听
Total property, plant and equipment 244 听 238
Construction in progress 听 听 听
Property, Plant and Equipment [Line Items] 听 听 听
Total property, plant and equipment $ 580 听 $ 552