v3.26.1
INVENTORIES
 6 Months Ended
Jun. 30, 2026
Inventory Disclosure [Abstract]  
INVENTORIES
NOTE 7. INVENTORIES
Inventories consisted of the following:
June 30, 2026December 31, 2025June 30, 2025
Inventories($ in millions)
Supplies$153.1 $156.2 $154.6 
Raw materials205.1 204.7 210.0 
Work in process184.8 178.1 200.1 
Finished goods489.1 413.9 514.9 
Inventories excluding LIFO reserve1,032.1 952.9 1,079.6 
LIFO reserve(184.9)(168.4)(160.5)
Inventories, net$847.2 $784.5 $919.1 
Inventories under the last-in, first-out (LIFO) method are based on annual estimates of quantities and costs as of year-end; therefore, the condensed financial statements at June 30, 2026, reflect certain estimates relating to inventory quantities and costs at December 31, 2026. The replacement cost of our inventories would have been approximately $184.9 million, $168.4 million and $160.5 million higher than reported at June 30, 2026, December 31, 2025 and June 30, 2025, respectively.