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PROPERTY, PLANT & EQUIPMENT
 12 Months Ended
Dec. 31, 2025
Property, Plant and Equipment [Abstract]  
PROPERTY, PLANT & EQUIPMENT PROPERTY, PLANT & EQUIPMENT
Balances of major classes of assets and allowances for depreciation, depletion and amortization at December 31 (which exclude assets classified as held for sale as detailed in Note 19) are as follows:
in millions20252024
Land and land improvements 1
$5,887.4 $5,804.8 
Buildings281.0 304.4 
Machinery and equipment7,576.3 7,717.2 
Finance leases (see Note 7)35.3 54.7 
Deferred asset retirement costs226.4 235.6 
Construction in progress498.3 400.1 
Total, gross property, plant & equipment$14,504.7 $14,516.8 
Allowances for depreciation, depletion and amortization(6,356.1)(6,055.3)
Total, net property, plant & equipment$8,148.6 $8,461.5 
1.Includes depletable land of $4,075.0 million and $4,015.7 million as of December 31, 2025 and 2024, respectively.
Capitalized interest costs with respect to qualifying construction projects and total interest costs incurred before recognition of the capitalized amount for the years ended December 31 are as follows:
in millions202520242023
Capitalized interest cost$7.9 $4.0 $3.7 
Total interest cost incurred before recognition of the capitalized amount247.6 195.2 199.8