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PROPERTY, PLANT AND EQUIPMENT | 6 Months Ended
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Jun. 30, 2022
Property, Plant and Equipment [Abstract] |
PROPERTY, PLANT AND EQUIPMENT | NOTE 6 - PROPERTY, PLANT AND EQUIPMENT The following table indicates the carrying value of each of the major classes of our depreciable assets:
| (In Millions)
| June 30, 2022 |  | December 31, 2021
Land, land improvements and mineral rights | $ | 1,400 |  |  | $ | 1,291 |
Buildings | 906 |  |  | 889 |
Equipment | 8,765 |  |  | 8,709 |
Other | 230 |  |  | 229 |
Construction in progress | 617 |  |  | 408 |
Total property, plant and equipment 1 | 11,918 |  |  | 11,526 |
Allowance for depreciation and depletion | (2,871) |  |  | (2,340) |
Property, plant and equipment, net | $ | 9,047 |  |  | $ | 9,186 |
1 Includes right-of-use assets related to finance leases of $389 million and $411 million as of June 30, 2022 and December 31, 2021, respectively.
We recorded depreciation and depletion expense of $249 million and $547 million for the three and six months ended June 30, 2022, respectively, and $208 million and $423 million for the three and six months ended June 30, 2021, respectively. Depreciation and depletion expense for the three and six months ended June 30, 2022 includes $23 million of accelerated depreciation related to the decision to indefinitely idle the coke facility at Middletown Works. Depreciation and depletion expense for the six months ended June 30, 2022 also includes $68 million of accelerated depreciation related to the indefinite idle of the Indiana Harbor #4 blast furnace.

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- Definition The entire disclosure for long-lived, physical asset used in normal conduct of business and not intended for resale. Includes, but is not limited to, work of art, historical treasure, and similar asset classified as collections. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 958 -SubTopic 360 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=120429125&loc=d3e99893-112916 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -URI http://asc.fasb.org/topic&trid=2155823 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 958 -SubTopic 360 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=120429125&loc=SL120174063-112916 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 958 -SubTopic 360 -Section 50 -Paragraph 1 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=120429125&loc=d3e99779-112916 + Details
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