v3.26.1
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)
 6 Months Ended
Jun. 30, 2026
Accounting Policies [Abstract]  
Schedule of Inventory, Current
Inventories and supplies are stated at the lower of cost or net realizable value. Inventories are as follows:
in millionsJune 30
2026		December 31
2025		June 30
2025
Finished products$557.1 $557.7 $574.4 
Raw materials41.0 36.7 57.8 
Products in process7.0 5.4 10.9 
Operating supplies and other83.6 80.7 82.4 
Total inventories$688.7 $680.5 $725.5 
Schedule of Results from Discontinued Operations Results from discontinued operations are as follows:
Three Months Ended
June 30		Six Months Ended
June 30
in millions2026202520262025
Pretax gain (loss)$1.7 $(2.8)$0.3 $(4.1)
Income tax (expense) benefit (0.5)0.7 (0.2)1.0 
Gain (loss) on discontinued operations, net of tax$1.2 $(2.1)$0.1 $(3.1)
Schedule of Weighted-Average Common Shares Outstanding Assuming Dilution
Earnings per share are computed by dividing net earnings by the weighted-average common shares outstanding (basic EPS) or weighted-average common shares outstanding assuming dilution (diluted EPS), as set forth below:
Three Months Ended
June 30		Six Months Ended
June 30
in millions2026202520262025
Weighted-average common shares outstanding129.8132.2130.2132.3
Dilutive effect of
Stock-Only Stock Appreciation Rights0.10.10.10.1
Other stock compensation awards0.40.60.50.5
Weighted-average common shares outstanding, assuming dilution130.3132.9130.8132.9
Schedule of Antidilutive Common Stock Equivalents The number of antidilutive common stock equivalents for which the exercise price exceeds the weighted-average market price is as follows:
Three Months Ended
June 30		Six Months Ended
June 30
in millions2026202520262025
Antidilutive common stock equivalents0.10.10.10.1