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PROPERTY, PLANT AND EQUIPMENT | 9 Months Ended
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Sep. 30, 2023
Property, Plant and Equipment [Abstract] |
PROPERTY, PLANT AND EQUIPMENT | NOTE 5 - 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, 2023 |  | December 31, 2022
Land, land improvements and mineral rights | $ | 1,388 |  |  | $ | 1,388 |
Buildings | 934 |  |  | 921 |
Equipment | 9,652 |  |  | 9,289 |
Other | 253 |  |  | 238 |
Construction in progress | 611 |  |  | 552 |
Total property, plant and equipment 1 | 12,838 |  |  | 12,388 |
Allowance for depreciation and depletion | (4,001) |  |  | (3,318) |
Property, plant and equipment, net | $ | 8,837 |  |  | $ | 9,070 |
1 Includes right-of-use assets related to finance leases of $485 million and $408 million as of September 30, 2023 and December 31, 2022, respectively.
We recorded depreciation and depletion expense of $247 million and $732 million for the three and nine months ended September 30, 2023, respectively, and $235 million and $782 million for the three and nine months ended September 30, 2022, respectively. Depreciation and depletion expense for the nine months ended September 30, 2022 includes $23 million of accelerated depreciation related to the decision to indefinitely idle the coke facility at Middletown Works and $68 million of accelerated depreciation related to the indefinite idle of the Indiana Harbor #4 blast furnace.

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